Sensing and Control
SC Instrumentation
Signal Conditioning,
Self-Calibrating
Digital Indicators
Model SC2001
Models SC1000 & SC2000
Model SC3004
Sensotec Sensors
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Chapter 1
Introduction
1.1 About This Manual
1.1.1 Scope
This manual will explain the setup, features and operation of 3rd generation SC
Series instruments, specifically the models SC1000, SC2000, SC2001 and
SC3004.
Further information about customer specific programming and setup will be
explained on the Customer Information Sheet that is provided with every instru-
ment.
1.1.2 Conventions
This manual uses the following conventions to present information:
[TEXT IN BRACKETS]
The label of a front panel button.
DISPLAY
Text that appears on the display, such as error
messages or menu items.
->
Indicates that what follows is an item from a
sub-menu, such as SYSTEM MENU -> DIAGNOSTICS.
1.1.3 Organization
Chapter 1, “Introduction”, offers general information about the SC Series and
this instruction manual.
Chapter 2, “Getting Started Quickly”, provides an overview of how to get
started quickly if your instrument and transducers were ordered at the same time,
or if Signature Calibration is used.
Chapter 3, “Operating Modes”, discusses the significant features of the SC
Series and operation procedures when the instrument is in the INITIALIZE, RUN,
ERROR or SETUP modes.
Chapter 4, “Chassis Models”, explains the differences between the SC1000,
SC2000, SC2001 and SC3004 chassis. Information relating to the hardware
chassis such as panel and rack mounting is given.
Chapter 5, “System Connector”, contains information about wiring to the 25-pin
System connector to access the Limit Outputs, Function Inputs and serial commu-
nications.
Chapter 6, “System Menu”, discusses the System Menu which allows you to
examine and change settings that affect the operation of the chassis.
Chapter 7, “Serial Communications”, briefly describes RS-232 and RS-485
communications. It also shows how to use the SERIAL COM Menu to examine the
settings and test the RS-232 or RS-485 communications.
Chapter 8, “Display Menu”, describes the Display Menu which allows you to
change what is displayed on the lower line of the SC2000 and SC2001 instru-
ments.
Chapter 9, “Limits”, discusses how the limits operate and describes how to alter
their settings via the Limit Menus.
Chapter 10, “Strain-Gage Input Channel”, explains how to wire, configure,
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operate and calibrate Strain-Gage Input Channels with your transducers.
Chapter 11, “AC/AC-LVDT Input Channel”, explains how to wire, configure, operate
and calibrate AC/AC-LVDT Input Channels with your transducers.
Chapter 12, “High-Level Input Channel”, explains how to wire, configure, operate
and calibrate High-Level Input Channels with your amplified transducers, in-line ampli-
fiers, or DC-DC LVDTs.
Chapter 13, “Relay Output Channel”, describes how a Relay Output channel can
enable additional limits in the instrument.
Chapter 14, “DAC Output Channel”, explains the configuration and operation of
additional digital-to-analog voltage or current outputs.
Chapter 15, “Split Display Virtual Channel”, shows how you can display two values
from any of the channels in the instrument at the same time.
Chapter 16, “Mathematics Virtual Channel”, describes the flexibility of customer-
specific SensoCode programming.
Chapter 17, “Error Messages”, lists error messages that the instrument may display,
describes their causes and, where possible, suggests solutions.
Chapter 18, “Setup Menu Reference”, is a list of all SETUP menus and a cross-ref-
erence to related information in this instruction manual.
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1.2 Related Documents
Customer Information Sheet
Every instrument is shipped with a Customer Information Sheet which documents
important information specific to each instrument, such as:
•
•
•
•
part number,
date of manufacture,
list of all installed channels and their setup information,
customer specific SensoCode programming of Mathematics Virtual channels
and operation notes.
Communications Guide
The “SC Series Communications Guide”, document 008-0610-00, describes in
detail how to communicate with an SC Series instrument using RS-232 and RS-
485. Wiring diagrams, sample programs, and descriptions of each command are
included.
A printed copy of this document is available for order, or you may download it from
http://www.honeywell.com/sensotec.
Supplemental Instructions
If an instrument is configured with Mathematics Virtual channels, one or more sets
of Supplemental Instructions may be included. These instructions contain impor-
tant information about which indicator lights, Function Input pins and/or Limit Out-
put pins of the System connector are used by the Mathematics Virtual channel.
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1.3 What is the SC Series?
The SC Series of Signal Conditioners/Indicators are versatile, multi-channel devices
designed to operate with many different types of sensors. Several different chassis
types, Input channels, and Output channels are available to allow the configuration of
an SC instrument to meet a variety of measurement and control needs. The operation
of an SC instrument is based on digital technology to provide improved accuracy,
superior ease of setup, and a wealth of features.
1.3.1 Features
The main features of the models SC1000, SC2000, SC2001 and SC3004 are:
•
Four alarm limits (optional sixteen), with versatile setup (not available on Model
SC1000)
•
Automatic setup, calibration, and scaling of strain-gage sensors through the use
TM
of Signature Calibration
•
•
•
•
•
•
Field selectable, digital, low-pass filtering (“damping”) on each Input channel
Up to ±50,000 part resolution
Field selectable five-, six - or seven-digit (9,999,999 maximum) display
RS-232 communications standard (RS-485 optional)
Local or remote setup using the RS-232 or RS-485 port
Push-button on/off tare feature
1.3.2 Chassis Models
Several models (i.e. chassis types) are available:
•
•
•
•
SC1000: 1 to 4 physical channels, 3/8 DIN case, no limits or peak detector
SC2000: 1 to 4 physical channels, 3/8 DIN case
SC2001: 1 to 4 physical channels, portable case
SC3004: 1 to 14 physical channels, 19” rack mount case, 1 to 3 quad-line displays
1.3.3 Channel Types
Channels can be one of three types: Input, Output, or Virtual
Input Channels
Input channels are hardware circuit boards with a unique channel number. Currently,
they are available for the following types of sensors:
•
•
Strain-gage sensors, such as unamplified pressure transducers and load cells
Sensors with voltage outputs, such as transducers with the Option 2a, 2b, 2c, 2d,
2g, 2j, 2k, 2p, 2t or 2y internal amplifier
•
Sensors with current outputs, such as transducers with the Option 2j, 2k or 2n
internal amplifier
•
•
AC-AC LVDTs (Linear Variable Displacement Transducers)
DC-DC LVDTs
Output Channels
Virtual Channels
Output channels are hardware circuit boards with a unique channel number. They
include:
•
Relay Output channels, which can add additional limits to the standard four (N/A
on Model SC1000).
•
DAC Output channels, which provide additional voltage or current outputs.
Virtual channels are software based devices that occupy a channel number, but not a
physical slot, in an instrument.
•
Split Display Virtual channels allow the displaying of any two channel’s track, peak
or valley values at the same time.
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•
Mathematics Virtual channels run small programs written in an interpretive
language called SensoCode. This provides great flexibility which allows the
SC Series to do many jobs which otherwise requires a personal computer or
PLC.
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1.4 What is Signature Calibration?
1.4.1 Overview
A small integrated circuit is located either inside the transducer, in an in-line package
between the instrument and the transducer, or in the connector of a cable. All data
necessary to set up the transducer with the instrument are stored (even linearity data),
and setup is automatic when a new transducer is connected to the instrument.
The Strain-Gage Input channel of the SC Series is designed to operate with Signature
Calibration. It will automatically set itself up with transducers which contain the mem-
ory device, but can also be set up using a front-panel interactive procedure. The Sig-
nature Calibration module can also be programmed from the instrument’s front panel.
Signature Calibration is only available with unamplified strain-gage transducers.
1.4.2 Benefits
The benefits are:
•
The transducer’s Calibration Record is always located where it is needed most...
with the transducer.
•
•
•
The instrument is always set up correctly with the transducer.
Interchanging of transducers and instruments is a quick process.
A User Calibration Data area that can be altered by customers to fit their require-
ments.
•
A Factory Calibration Sheet Data area, unalterable by the customer, can be cop-
ied back into the User Calibration Data.
1.4.3 Information
Stored
The following information is stored inside transducers equipped with Signature Cali-
bration:
•
•
•
Full-scale mV/V: The full-scale millivolt-per-volt (mV/V) rating of the transducer
when its full load is applied; also called “calibration factor”.
Shunt-Cal mV/V: The millivolt-per-volt output of the transducer when the shunt
calibration resistor is placed across its (-)SIGNAL and (-)EXCITATION leads.
Shunt Resistance: The resistance value, in Ohms, that was used to obtain the
shunt-cal mV/V value above.
•
•
Full-Scale Value: The full scale value of the transducer, in engineering units.
Engineering Units: The engineering units that the transducer is calibrated in (i.e.
pounds, grams, pascals, inches of water, etc.).
•
•
Serial Number: The serial number of the transducer.
Excitation Voltage: The magnitude and type of signal used to excite the trans-
ducer.
•
Linearization Points (optional): These can be used by an instrument using Shunt
Calibration or Millivolt-per-Volt Calibration to correct any non-linearity in the trans-
ducer and thus improve the accuracy of the system. An additional “multiple-point
calibration” can be purchased with the transducer that allows linearity correction
information to be placed into its Signature Calibration module.
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Chapter 2
Getting Started Quickly
2.1 Locate Required Parts and Information
The following items are required to set up an SC Series instrument with your
transducer:
•
•
•
SC Series instrument
Transducers that are to be connected to the instrument
For each transducer to be connected to the instrument, a connecting cable.
This cable will have a 12-pin, green, plastic connector on one end and the
transducer’s mating connector on the other end. Usually, this cable is ordered
along with the instrument and transducer.
If the connecting cable was not ordered with the instrument, you may need to
make this cable.
•
•
The transducer’s Calibration Record or Certificate of Calibration.
The Customer Information Sheet that shipped with your instrument. This
sheet describes which cards are installed in each channel.
Power cord for the instrument.
•
2.2 Connect the Transducer to the Correct Channel of the Instrument
For each transducer, attach its connecting cable to the transducer, and then to the
correct 12-pin channel-connector on the instrument.
The Customer Information Sheet indicates which serial numbered transducer is to
be connected to each channel of the instrument.
If the instrument and transducer(s) were not purchased with a connecting cable,
you may need to make this cable. For the transducer’s pin connections, see that
transducer’s calibration record. For the pin connections for that channel of the
instrument, see the appropriate chapter in this manual. For example, if you wish
to wire to a Strain-Gage Input Channel see the chapter “Strain-Gage Input Chan-
nel” on page 59.
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2.3 Turn on the Instrument
Connect the power cord between the instrument power source and the instrument,
and turn the On/Off switch on the back of the instrument to the On position.
The instrument enters its INITIALIZE mode that lasts a few seconds per channel. As
each channel in the instrument is initialized, the transducer's serial number may be
seen on the display if the transducer has a Signature Calibration Module in it.
NOTICE
If the channel’s display flashes “APPLY 00000.” (or some other load value), the
instrument has detected a transducer other than the one which was last cali-
brated with that channel. The instrument is prompting you to apply the
requested load to the transducer so that a “mV/V Calibration” or a “Shunt Cali-
bration” can take place.
After making certain that the correct transducer is connected this channel,
press the [ENTER] button after you have applied the requested load to perform
the calibration.
NOTICE
If the instrument displays error code 57 or 68, it has detected a transducer
other than the one which was last calibrated with that channel. Furthermore,
the channel cannot perform an automatic calibration because its calibration
type has been set to “Known Load Calibration”.
When the instrument enters its normal operating mode (RUN mode), you will see the
following format on the front panel display:
1
•
00000. PSIG
"
where:
•
•
Channel number: “1” is the channel number.
Value type: The next character indicates the nature of the following value.
A blank character indicates the tracking value. The instrument is “tracking” the sig-
nal, continuously updating the display in response to the signal from the trans-
ducer.
A “• " character indicates the peak value (highest value seen since the [CLEAR]
button was last pressed).
A “– " character indicates the valley value (lowest value seen since the [CLEAR]
button was last pressed).
•
•
Data value: “00000.” displays the value from the transducer in engineering units.
Units label: “PSIG” indicates the engineering units being used (up to 4 charac-
ters).
•
Tare indicator: A “" “ symbol indicates tare is off; a “Ë“ symbol indicates tare is on.
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2.4 Use the SETUP Menus to Enter Transducer Information
You can skip this step if:
•
•
You are using a transducer equipped with Signature Calibration, or
The transducer and instrument were purchased together and set up by Sen-
sotec.
Otherwise, you must enter information about your transducer into the SETUP
menu of the channel to which it is connected. See the appropriate chapter of this
manual for that card type.
2.5 Calibrate the Transducers to Their Channels
You can skip this step if:
•
•
You are using a transducer equipped with Signature Calibration, or
The transducer and instrument were purchased together and set up by Sen-
sotec.
Otherwise, you must choose a calibration method (e.g. Shunt Calibration, mV/V
Calibration, or Known Load Calibration) appropriate for your application and use
the SETUP menu for that channel to calibrate the channel to the transducer. See
the appropriate chapter of this manual for that card type.
2.6 The SC Series Instrument is Ready for Use
while it is in the RUN mode.
Apply some test stimulus on the transducer to observe changes in the display.
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Chapter 3
Operating Modes
3.1 Operating Modes
The SC Series instruments have four modes of operation:
•
•
•
INITIALIZE, to test the instrument upon power up
RUN, normal operation
ERROR, which indicates that an abnormal situation has occurred that
stopped the operation of the instrument
SETUP, a menu which allows setup and calibration of the chassis and its
channels
•
Each of these will be described in this chapter.
3.2 INITIALIZE Mode
When the instrument is powered up or otherwise reset, it enters the INITIALIZE
mode. As the instrument enters this mode, all segments of the display and all
front panel indicator lights (if available) illuminate momentarily. Next, each channel
in the instrument is checked for proper operation.
If a problem is detected, the instrument may enter the ERROR mode.
Depending on the type of channel, other actions may occur. For example, a
Strain-Gage channel will calibrate its analog-to-digital converter and attempt to
read the transducer’s Signature Calibration information. If the transducer is
equipped with Signature Calibration, the transducer’s serial number is displayed
momentarily.
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3.3 RUN Mode
After the INITIALIZE mode finishes, the instrument enters the RUN mode, its normal
mode of operation.
3.3.1 Display
Model SC3004 and upper
line of SC1000, SC2000,
SC2001
The display will show a channel number on the far left, followed by the channel’s oper-
ation messages.
For example, a Strain Gage amplifier channel will use the format below:
1•
00000. PSIG
"
where:
•
•
Channel number: “1” is the channel number.
Value type: The next character indicates the nature of the following value.
A blank character indicates the display is being continuously updated by “tracking”
the input signal to the channel.
A “• " character indicates the peak value (highest value seen since the [CLEAR]
button was last pressed).
A “– " character indicates the valley value (lowest value seen since the [CLEAR]
button was last pressed).
•
•
Data value: “00000.” displays the value from the transducer in engineering units.
Units label: “PSIG” indicates the engineering units being used (up to 4 charac-
ters).
•
Tare indicator: A “" “ symbol indicates tare is off; a “Ë“ symbol indicates tare is on.
Lower Line of SC1000,
SC2000, SC2001
The contents of the display’s lower line is selected with the “DISPLAY MENU -> LOWER MODE”
menu item as either displaying a channel or indicating the status of Limits. See “Indi-
3.3.2 [VALUE] button
NOTICE
The [VALUE] button is not used by SC1000 instruments in the RUN mode.
After the channel number, the next characters indicate which data value for the dis-
played channel is shown. There are three (possibly four) data values available from
each channel:
•
•
•
•
(blank), tracking data value
“• ", peak data value, (highest value since the peak/valley detector was cleared)
“– ", valley data value, (lowest value since the peak/valley detector was cleared)
“Û", percentage of the Analog-to-Digital converter’s full-scale digitizing capability.
This data value is only available when the channel’s “DIAGNOSTICS->DISPLAY ADC”
menu item is set to “ON”.
Pressing and releasing the [VALUE] button cycles though the available sources for
data values for the displayed channel.
3.3.3 [CLEAR] Button
Pressing and releasing the [CLEAR] button will reset the peak and valley values of the
channel being monitored by the display to the track value. Additionally, any limits in
the instrument that are “latched” will be reset.
NOTICE
The [CLEAR] button is not used by SC1000 instruments in RUN mode.
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To clear the peak and valley values of all channels simultaneously, use the Sys-
tem connector’s Function Input #2 pin. See “System Connector” on page 35 for
details.
To clear the peak and valley values of a single channel regardless of which chan-
nel is being monitored by the display, use the channel’s AUX1 or AUX2 control
pins on its connector. See the particular chapter regarding that channel for
details.
3.3.4 [CHANNEL] button
If the configuration of the instrument contains more than one channel, the left
most characters of the display indicates which channel the display is monitoring.
Pressing and releasing the [CHANNEL] button will cause the next channel to be
displayed.
On instruments with a dual-line display, the [CHANNEL] button cannot be used to
change which channel the lower line is monitoring. That is selected with the “DIS-
PLAY MENU -> LOWER CHANNEL” menu item.
Shunt Calibration Check
If the [CHANNEL] button is held down for more than 3 seconds, the present chan-
nel’s shunt calibration value (if the channel has shunt calibration available) will be
displayed.
3.3.5 [TARE] button
To reset the channel’s display to zero, press the [TARE] button while in RUN
mode. To restore the tare value, press the [TARE] button again. The “Tare” indica-
tor will illuminate when tare is on.
To tare all channels simultaneously, use the System connector’s Function 1 Input
To tare a single channel regardless of which channel is being monitored by the
display, use the channel’s AUX1 or AUX2 control pins on its connector. See the
particular chapter regarding that channel for details.
3.3.6 Indicator Lights
ModelsSC1000, SC2000, SC2001
A “" “ symbol on the right side of a channel’s display indicates tare is off for that
channel; a “Ë“ symbol indicates tare is on.
If the lower line of the display is configured with the “DISPLAY MENU -> LOWER MODE”
menu item as “LIMIT 01-04”, then the lower line will monitor the status of Limits 1, 2,
3 and 4. A “" “ symbol indicates a limit is deactivated; a “Ë“ symbol indicates a limit
is activated. For example:
L1"
L2"
L3Ë
L4Ë
indicates that Limit 1 and Limit 2 are deactivated and Limit 3 and Limit 4 are acti-
vated. Since the SC1000 is not equipped with limits, the lower line of the display
will be blank. See “LOWER MODE Menu Item” on page 51.
These indicators may be overridden by the operation of a Mathematics channel in
special applications.
Model SC3004
Front panel lights “L-1”, “L-2”, “L-3”, and “L-4”, monitor the status of Limits 1, 2, 3,
and 4. Model SC3004 instruments also include front panel lights labeled “L-5”, “L-
6”, “L-7” and “L-8” which monitor the status of optional Limits 5, 6, 7, and 8.
The function of the front panel lights may be overridden by the operation of a
Mathematics channel in special applications.
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3.4 ERROR mode
The instrument enters the ERROR mode when a critical error occurs that prevents the
instrument from operating. The display alternates between displaying a two-digit code
in the form “ERROR xx ON CH.yy” and a short description of the error. The first two
digits “xx” hold the error code. The last two digits, “yy” is channel number that caused
the error. For example, “ERROR 60 ON CH.01” indicates that error number 60 occurred on
channel 1.
While the instrument is in the ERROR mode, no other operations are taking place
page 152 for a list of error codes and their probable causes.
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3.5 SETUP Menu mode
The SETUP Menu mode is used to display or change the settings that control the
operation of the instrument.
3.5.1 Available Menus
Each major function of the instrument has its own SETUP Menu. See “Setup Menu
3.5.2 Entering and
Exiting the SETUP Menu
mode
To enter the SETUP Menu mode, press and hold the [UP] and [DOWN] buttons at the
same time until you see “SETUP” on the display. When you release the buttons, you will
see the first SETUP Menu item.
3.5.3 Moving Through
SETUPMenusandMenu
Items
The following table shows how to move though menus and menu items, and how to
display or change the setting of a particular item.
Table 3-1: Navigating the Menus
Button
Action
[UP] or [DOWN]
[ENTER]
Scroll through available menus, sub-menus or menu items.
Select a menu, sub-menu or menu item
[EXIT]
If changing a setting: abandons changes to a menu item
otherwise: leaves the SETUP mode.
To change the setting of a menu item:
Press [ENTER] to display the current setting, which is preceded by the ‘*’ character.
Press [UP] or [DOWN] until you see the setting you want. To abandon changes, press
[EXIT]. To accept the new setting and move to the next item, press [ENTER].
3.5.4 Exiting the SETUP
Menu mode
To leave SETUP mode and return to the RUN mode, press [EXIT] at any time.
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Chapter 4
Chassis Models
4.1 Introduction
The SC Series of Signal Conditioners/Indicators are available in several different
chassis models. In general, each chassis model operates in an identical fashion
and can be ordered with any type of Input channels, Output channels, or Virtual
channels.
Input channels and Output channels are printed circuit boards that occupy a phys-
ical slot inside the instrument’s chassis. 12-pin connectors are located on the rear
panel to connect to each Input or Output Channel. Each channel in the instrument
is identified by a number (channel 01, channel 02, etc.).
A Virtual channel exists in software only; it does not occupy a physical slot inside
the instrument’s chassis. There is no rear-panel connector for a Virtual channel.
However, a Virtual channel does require a channel number.
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4.2 Specifications
Model
Model
Model
Model
SC1000
SC2000
SC2001
SC3004
GENERAL
# Physical channels
# Virtual channels
Case Material
1 to 4
8
1 to 4
8
1 to 4
8
1 to 14
8
Aluminum
Aluminum
Aluminum
Aluminum
PHYSICAL
Form factor
Mounting
3/8 DIN
3/8 DIN
suitcase
portable
2U rack
rack
bench, panel or rack
DISPLAY
# characters/line
# lines/display
# displays
16
2
16
2
16
2
20
4
1
1
1
1, 2 or 3
Display type
Vacuum
Vacuum
Vacuum
Vacuum
Fluorescent
Fluorescent
Fluorescent
Fluorescent
ENVIRONMENTAL
Storage temp.
-30º C to 90º C
5º C to 40º C
-30º C to 90º C
5º C to 40º C
-30º C to 90º C
5º C to 40º C
-30º C to 90º C
5º C to 40º C
Operating temp.
Relative Humidity
80% max. for temperatures up to 31º C; decreasing linearly to 50% max. at
40º C
Other
indoor use at altitudes up to 2000 m; Pollution Degree 2; Overvoltage Cate-
gory II
SPECIAL FEATURES
Limits Quantity
N/A
N/A
4 std., 16 max.
4
4 std., 12 max.
4
4 std., 16 max.
4
Digital, isolated control inputs
POWER
Standard AC powered
(automatic selection)
100 to 230 VAC,
47 to 63Hz
100 to 230 VAC,
47 to 63Hz
100 to 230 VAC,
47 to 630Hz
100 to 230 VAC,
47 to 63Hz
Optional Vehicle Powered
Total Excitation Drive
11-28 VDC, 20W
120 mA max.
11-28VDC, 20W
120 mA max.
11-28 VDC, 20W
120 mA max.
N/A
400 mA max.
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4.3 Models SC1000 and SC2000
4.3.1 Differences
Model SC1000 instruments do not include peak/valley capture or limits features.
All other SC instruments include peak/valley capture and 4 limit (“alarm”) outputs.
4.3.2 External Arrangement
The external arrangement of the AC powered SC1000 and SC2000 is given
below.
0123456789ABCDEF
0123456789ABCDEF
Figure 4-1: External Arrangement of AC powered SC1000 and SC2000
4.3.3 Rear Panel
The pinout for the 25-pin System connector is provided later in this chapter. The
pinouts for the individual channels are located in the chapter for that channel.
4.3.4 Panel Mounting
The panel cutout size conforms to the 3/8 DIN standard. Panel-Mounting Jacks
(order code AA928) are available that slide into two slots at the sides of the instru-
ment. Use the following procedure to mount an SC1000 or SC2000 into a panel.
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Figure 4-2: Panel Cutout Drawing for SC1000 & SC2000 (not to scale)
Step 1: In the panel or rack, cut a hole as shown above. The panel may be up to 1/4”
in thickness.
Step 2: Use an 0.062" Allen wrench to remove two set screws that hold the Panel-
Mounting Jacks to the case. To do this, insert the wrench into the side slots at
the rear. Remove the screws completely.
Step 3: Remove the Panel-Mounting Jacks by sliding them toward the rear. If the jacks
don't slide easily, tap them gently.
Step 4: Put the instrument through the hole in the panel.
Step 5: Reinsert the Panel-Mounting Jacks into the slide slots. Slide them as far
toward the panel as possible.
Step 6: Reinsert the setscrews and tighten them. This will force the Panel-Mounting
Jacks toward the rear side of the panel, drawing the instrument tightly into
place.
4.3.5 Rack Mounting
A Rack Mounting Kit (order code AA934) is available for mounting a single SC1000 or
SC2000 into a 19”, 2U rack. It includes the Panel-Mounting Jacks described above as
well as the 19” rack panel.
4.3.6 Bench Mounting
4.3.7 Case Removal
If bench mounting the instrument, you may want the optional carrying handle/bench
stand (order code AA926).
WARNING
Disconnect the power cord and all cables from the instrument before attempt-
ing to remove the case.
Failure to comply with these instructions could result in death or serious
injury.
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CAUTION
Use a #0 Phillips screwdriver on the black screws to avoid damaging them.
Failure to comply with these instructions may result in product damage.
Removal of rear panel
The rear panel must be removed in order to install or remove channels.
Step 1: Remove the four black Phillips-head machine screws that secure the back
panel of the instrument to the case. These screws are located on the rear of
the case, one at each of the four corners.
Step 2: Remove the cable shield connection screw to allow the installation or
remove of channels per “Input or Output Channel Installation Procedure” on
Remove of case from entire circuit
board assembly
Step 1: Remove the two Phillips-head screws that secure the front panel.
Step 2: Remove the front panel and disconnect its two connecting cables.
Step 3: Remove the four black Phillips-head machine screws that secure the back
panel of the instrument to the case. These screws are located on the rear of
the case, one at each of the four corners. Do not remove the cable shield
connection screw in the center.
Step 4: The circuit boards will slide out of the rear of the case as a unit.
4.3.8 Internal Arrangement
The figure below shows the names and locations of the printed circuit boards.
Front Panel/Display Board
Assembly
Microprocessor
Board
Power Supply
Board
SensoBus Backplane
Up to 4 Input or Output
Board
Channel boards
(1 shown)
Rear Panel
Figure 4-3: Internal Arrangement of SC1000 and SC2000
Below is a description of each printed circuit board.
•
The SensoBus Backplane Board serves as the connection between all
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boards in the instrument.
•
The Front Panel/Display Board Assembly contains the display and all front panel
controls.
•
•
The Power Supply Board contains the +15V, -15V and +5V power supplies.
The Microprocessor Board contains the microprocessor, ROM software storage
chip, and the System connector.
•
The Hardware Input/Output Channel Boards plug into the remaining four slots
of the SensoBus Backplane Board.
4.3.9 Cleaning
Turn off the instrument and unplug all connectors. Use a soft cloth or tissue and a
mild cleaner. Do not use liquid or aerosol cleaners. Do not allow any cleaner inside
the instrument.
4.3.10 Vehicle Power
Option
Model SC1000 and SC2000 instruments are available with a vehicle power option for
page 26 voltage and power requirements.
NOTICE
Due to the momentary startup inrush current of the instrument’s power supply,
the use of switching power supplies with the SC are not recommended.
4.3.11 Fuse
Replacement
The power-line fuses of AC-powered instruments are located within the instrument's
power entry module on the rear panel. Use two 2A, 250V fast-blow fuses (p/n 029-
3026-00).
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4.4 Model SC2001
4.4.1 Differences
Model SC2001 instruments are SC2000 instruments housed in a portable case.
4.4.2 External Arrangement
The external arrangement of the AC powered SC2001 is given below
.
0123456789ABCDEF
0123456789ABCDEF
Figure 4-4: External Arrangement of AC powered Model SC2001
4.4.3 Front Panel
The pinout for the 25-pin System connector is provided later in this chapter. The
pinouts for the individual channels are located in the chapter for that channel.
4.4.4 Case Removal
WARNING
Disconnect the power cord and all cables from the instrument before attempt-
ing to remove the case.
Failure to comply with these instructions could result in death or serious
injury.
Step 1: Remove the 10 Phillips-head machine screws that secure the front panel
to the case.
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Step 2: Pull the front panel assembly out of the case.
4.4.5 Internal Arrangement
4.4.6 Cleaning
See the Model SC2000 “Internal Arrangement” on page 29.
Turn off the instrument and unplug all connectors. Use a soft cloth or tissue and a
mild cleaner. Do not use liquid or aerosol cleaners. Do not allow any cleaner
inside the instrument.
4.4.7 Vehicle Power Option
The Model SC2001 is available with a vehicle power option for operation with bat-
power requirements..
NOTICE
Due to the momentary startup inrush current of the instrument’s power supply,
the use of switching power supplies with the SC are not recommended.
4.4.8 Fuse Replacement
The power-line fuses of AC-powered instruments are located within the instru-
ment's power entry module on the rear panel. Use two 2A, 250V fast-blow fuses
(p/n 029-3026-00).
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4.5 Model SC3004
4.5.1 External Arrangement
0123456789ABCDEFGHIJ
0123456789ABCDEFGHIJ
0123456789ABCDEFGHIJ
0123456789ABCDEFGHIJ
0123456789ABCDEFGHIJ
0123456789ABCDEFGHIJ
0123456789ABCDEFGHIJ
0123456789ABCDEFGHIJ
0123456789ABCDEFGHIJ
0123456789ABCDEFGHIJ
0123456789ABCDEFGHIJ
0123456789ABCDEFGHIJ
Figure 4-5: External Arrangement of Model SC3004
4.5.2 Rear Panel
The pinout for the 25-pin System connector is provided later in this chapter. The
pinouts for the individual channels are located in the chapter for that channel.
4.5.3 Panel Mounting
4.5.4 Bench Mounting
The panel space necessary conforms to the EIA 19” rack-mount standard. Panel
mounting ears are attached to the instrument.
Panel mounting ears are attached to the instrument, and may be removed if they
are not needed.
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4.5.5 Case Removal
WARNING
Disconnect the power cord and all cables from the instrument before attempt-
ing to remove the case.
Failure to comply with these instructions could result in death or serious
injury.
CAUTION
Use a #0 Phillips screwdriver on the black screws to avoid damaging them.
Failure to comply with these instructions may result in product damage.
Step 1: Remove the four, silver rack-mounting ears from the left and right sides.
Step 2: Remove one Phillips screw from the top of the case.
Step 3: Remove two Phillips screws from the bottom of the black case cover.
Step 4: Remove the black case cover from the instrument.
Step 5: Remove eight Phillips screws from the rear panel, including the two cable
shield connection screws. NOTE: Do not remove the four screws which
secure the cooling fan to the rear panel.
Step 6: Remove the rear panel.
4.5.6 Rear Panel
The pinout for the 25-pin System connector is provided later in this chapter.
4.5.7 Internal Arrangement
User installable printed circuit boards will slide out of the rear of the case once the
case and rear panel have been removed as described above.
4.5.8 Cleaning
Turn off the instrument and unplug all connectors. Use a soft cloth or tissue and a
mild cleaner. Do not use liquid or aerosol cleaners. Do not allow any cleaner
inside the instrument.
4.5.9 Fuse Replacement
The power-line fuses are located within the instrument's power entry module on
the rear panel. Use two 2A, 250V fast-blow fuses (p/n 029-3026-00).
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Chapter 5
System Connector
5.1 Introduction
The 25-pin D-subminiature System connector is used for the following:
•
Communication by RS-232 or RS-485. RS-232 DCE standard designations
have been maintained.
•
•
Digital Function Inputs, such as for resetting tare, peak and latched limits
Open-collector digital Limit Outputs for limits 1 through 4 (not available on
Model SC1000).
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5.2 System Connector Pinout
Table 5-2: System Connector
Pin
Name
Function
Input/Output
Reference Pin
1
2
N/C
RS-232 IN
RS-232 OUT
CTS
No Connection
RS-232 Data In
N/A
Input
7
7
3
RS-232 Data Out
Output
N/A
4
RS-232 Clear to Send (connected to pin 5)
RS-232 Request to Send (connected to pin 4)
RS-232 Data Set Ready
N/A
N/A
7
5
RTS
N/A
6
DSR
Output
Reference
N/A
7
GND
RS-232/RS-485 reference
-
8
DCD
RS-232 Data Carrier Detect (not connected)
Function Input #2:.Clear Peak/Valley & Limits
Function Input #1: Tare Off for all channels
Function Input #0
N/A
19
19
19
7
9
FUNC 2
FUNC 1
FUNC 0
RS-485 TB
RS-485 TA
L1
Input
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Input
Input
RS-485 Transmit B
Output
Output
Output
Output
Output
Output
N/A
RS-485 Transmit A
7
Limit 1 Output (Open Collector)
Limit 2 Output (Open Collector)
Limit 3 Output (Open Collector)
Limit 4 Output (Open Collector)
No Connection
19
19
19
19
L2
L3
L4
N/C
DGND
DTR
DGND (Digital Ground)
Reference
N/A
RS-232 Data Terminal Ready (not connected)
Function Input #3: Tare On for all channels
RS-232 Ring Indicator (pulled up to 5V)
No Connection
N/C
19
FUNC 3
RI
Input
Output
N/A
N/C
N/C
7
RS-485 RB
RS-485 RA
RS-485 Receive B
Input
RS-485 Receive A
input
7
The Limit Output pins and Function Input pins are electrically isolated from the rest of
the instrument.
The RS-232 and RS-485 communications pins are electrically isolated from the rest of
the instrument.
The RS-232 and RS-485 interfaces are exclusive; an instrument cannot have both.
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5.3 Function Input Pins
5.3.1 Overview
To use a Function Input pin (9, 10, 11 or 21), connect it to the DGND (pin 19) momen-
tarily. This can be accomplished by a push button switch, relay contact closure, or
PLC output.
Usually, the Function Input pins perform the default actions described in the “System
matics Virtual Channel may replace these default actions. Consult the Customer
Information Sheet included with your instrument for details.
5.3.2 Example
For example, assume that you wish to use Function Input #3 to tare all channels in the
instrument simultaneously. Connect a push-button switch as shown below.
Figure 5-1: Function Input Example
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5.4 Limit Output Pins
5.4.1 Overview
An open-collector output is a transistor logic output that can be used to control DC
loads, drive opto-isolators or relays, or interface directly to logic circuitry. They act very
much like switches: low resistance when turned on and high resistance when turned
off. You can use them as you would a dry relay contact, with the following restrictions:
•
•
•
•
The voltage applied must be DC
The polarity of the DC voltage must be observed
Maximum voltage: 50VDC
Maximum power: 2.0W
When Limits 1, 2, 3, or 4 are activated, the corresponding open-collector Limit Output
pin on the System connector will be connected to the DGND (Digital Ground) pin.
However, a SensoCode program running on a Mathematics Virtual Channel may over-
ride this behavior. Consult the Customer Information Sheet included with your instru-
ment for details.
5.4.2 Example
For example, assume that a remote indicator is to be lighted when Limit 1 is activated.
An external 24 VDC power supply connects to the indicator.
When Limit 1 is deactivated, there is high resistance between the Limit 1 Output pin
and the DGND (Digital Ground) pin; little current flows in the circuit and the light is off.
When Limit 1 is activated, there is low resistance between the Limit 1 Output pin and
the DGND (Digital Ground) pin; the light turns on.
The resistor limits the current flowing in the circuit when the light is lighted to 48 mA.
According to Ohm’s Law:
V
R
---
I =
24V
-------------
48mA =
500Ω
Lights or other indicators have voltage, current, and/or power ratings that must be
observed in order to avoid damaging them.
Figure 5-2: Open-Collector Output Example
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Chapter 6
System Menu
6.1 Overview
The System menu allows you to examine and change settings that affect the
chassis of the SC instrument. You can view the internal software revision and the
instrument’s configuration (i.e. what types of cards are installed in each channel).
Detailed instructions on operating the SC instrument in the SETUP Menu mode
6.2 Menu Items
6.2.1 SOFTWARE REVISION
Menu Item
This displays the software part number and revision that is resident in the Micro-
processor Board of the SC instrument.
6.2.2 CONFIGURATIONSub-
Menu
When selected, a sub-menu is displayed which lists all available channels in an
SC Series instrument. By pressing [ENTER] when a channel number is dis-
played, the card type installed in that channel is shown. If a card is not installed in
that channel, the message “NOT INSTALLED” is shown. Press [ENTER] again to
return to the sub-menu listing of all channels.
6.2.3 DIAGNOSTICSSub-
Menu
This sub-menu allows exercising and monitoring of the System connector’s output
and input pins.
OUTPUT n, PIN nnMenu Items
INPUT TESTMenu Item
These menus items are used to select an output pin to turn “on” (connected to pin
19) or “off” (disconnected from pin 19). The output pins are updated immediately.
When this item is selected, the status of all four digital inputs are continuously
scanned and displayed. A “0” means that an input is not connected to pin 19 (not
asserted), and a “1” means that it is connected (asserted). Press any button to
exit this operation.
SCAN TIMEMenu Item
When selected, this menu item displays the time, in seconds, that it last took for
the chassis to service all of the channels. In the RUN mode, the chassis reads
each channel’s track, peak and valley value sequentially. After each channel has
been serviced, the limits are processed.
The value displayed is obtained from the last execution of the RUN mode prior to
entering the SETUP menu mode. If you enter the SETUP mode immediately after
power up, the display will read “NOT AVAILABLE”.
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6.2.4 INSTALL CHANNEL
Menu Item
This menu item will add an Input, Output or Virtual channel as the next highest chan-
nel number in the system.
NOTICE
Installing a channel will cause it to use the “default” or “empty” configuration
information for that channel. All other channels are unaffected.
Any calibration data, SensoCode mathematics programs, display setup,
or other information for that channel will be erased to default values.
Input or Output Channel
Installation Procedure
Before installing an Input or Output card, make certain that you know the “card type”
(a two-digit hexadecimal number) of the card you wish to install.
CAUTION
Use Electrostatic Discharge (ESD) precautions when unpacking and handling
circuit boards.
Failure to comply with these instructions may result in product damage.
Use the following procedure to install an Input or Output card:
1) When the instrument is in the RUN mode, use the [ENTER] button to change
which channel the display is monitoring. Note the highest channel number that is
presently installed. The new circuit card for the new channel will be installed as
the next channel number.
2) Examine the circuit card to be installed and orient it as shown below. On it you
will find the address jumper block.
Figure 6-1: Address Jumper Block Location
3) Change both address jumpers to match the next available channel in the
instrument according to the chart below. Do not skip any channel numbers.
Figure 6-2: Address Jumper Settings
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Input Channels, Output Channels and Virtual Channels (such as Mathematics
Channels and Split Display Channels) all require an unique address.
4) Turn the instrument off and remove the power cord from the power source.
matches the particular chassis model. Follow the directions and remove the
rear panel.
6) Locate an unused 42-pin SensoBus connector on the SensoBus mother
board and make certain that all of its pins are not bent out of shape. It does
not matter into which slot you install the card as the addressing is imple-
mented with the address jumpers. However, it is most convenient to match
the card’s address with the channel numbers silk-screened on the rear panel.
7) Install the card into an unused 42-pin SensoBus connector on the Senso-
Bus mother board. Make certain the card is fully seated.
8) Replace the rear panel.
9) Re-connect the power cord to the power source. Turn the instrument on.
10) Enter the SETUP menu mode, then select “SYSTEM MENU-> INSTALL CHANNEL”.
The instrument will then present a menu of card types available for installa-
tion.
11) Use the [UP] and [DOWN] buttons to select the card type of the card you
wish to install. After you select the card type to be installed, you are asked
“ARE YOU SURE?”. To cancel this operation, select “NO” or press the [EXIT] but-
ton. If “YES” is selected, “WORKING...” is displayed and the installation will com-
mence.
12) If the installation was successful, “DONE” will be displayed. If the installation
failed, you will see one of the following messages:
“SYSTEM IS FULL”: There are no unused channels available in the instrument.
“WON’T INSTALL”: The Output Relay card type you selected to install does not
match the next available set of Limits. For example, the Limit 09-12 card type
will not install unless the Limit 05-08 card type has been installed.
“ERROR 28 ON CH.xx”: The instrument could not communicate with the card’s
EEPROM memory. This is usually caused by the address jumpers being set
incorrectly or if the card is not physically inside the chassis.
Virtual Channel Installation
Procedure
Use the following procedure to install a Virtual Channel:
1) Enter the SETUP menu mode, then select “SYSTEM MENU -> INSTALL CHANNEL”.
The instrument will then present a menu of card types available for installa-
tion.
2) Select the card type of the card you wish to install. After you select the
card type to be installed, you are asked “ARE YOU SURE?”. To cancel this opera-
tion, select “NO” or press the [EXIT] button. If “YES” is selected, “WORKING...”
is displayed an the installation will commence.
3) If the installation was successful, “DONE” will be displayed. If the installation
failed, you will see one of the following messages:
“CAN’T INSTALL”: There is no more memory available for Virtual channels.
“SYSTEM IS FULL”: There are no unused channels available in the instrument.
After installing a Mathematics Virtual channel, you must re-load the SensoCode
program into the channel with a computer running the “SensoCom Instrument Util-
tion.
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6.2.5 DELETE CHANNEL
Menu Item
This menu item will delete the last channel in the instrument. Before deletion occurs,
the number of the channel to be deleted is displayed and you are asked “ARE YOU SURE”.
To cancel this operation, select “NO” or press the [EXIT] button. If “YES” is selected,
the last channel in the system will be deleted.
After a hardware channel has been deleted, you can safely physically remove it from
NOTICE
Re-installing a deleted channel will erase all of its configuration information!
6.2.6 DEFAULT CHANNEL
Menu Item
This menu item will reset all settings for the channel you select to their factory default
values. Before the channel settings are reset, you are asked “ARE YOU SURE?”. To cancel
this operation, press the [EXIT] button. If “YES” is selected, the channel’s settings will
be reset.
NOTICE
Defaulting a channel is an operation that cannot be undone. All calibration
information and other settings will be erased.
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Chapter 7
Serial Communications
7.1 Overview
The SC Series instruments are designed to communicate with a remote computer
system or terminal for the purpose of transferring data values from the instrument
to the remote system. The remote computer or terminal also can control many of
the functions performed by the instrument.
This chapter is a brief introduction to serial communications with SC Series instru-
ments. A separate instruction manual is available to assist with the hookup and
wiring for data communications as well as provide detailed information of all the
available commands. Ask for manual 008-0610-00, “SC Series Communications
Guide” or download it from http://www.honeywell.com/sensotec.
7.2 Wiring
The System connector on the instrument’s rear panel is used, among other things,
mation.
All of the serial communications pins on the 25-pin System connector have 500V
of electrical isolation from all other pins and connectors on the instrument. Addi-
tionally, all serial communications pins are protected against electrostatic dis-
charge (ESD).
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7.3 Communications Protocol
7.3.1 RS-232 vs. RS-485
SC Series instruments are available with either of two communications protocols, RS-
232 or RS-485. Only one of these can be installed at a time at the factory.
•
RS-232 provides for only one receiver and transmitter per loop, and a loop length
of no more than 50 feet.
•
RS-485 allows up to 32 devices per loop, and a loop length of no more than 4000
feet. All devices receive messages in parallel on the line, the so-called “multi-
drop” system. To avoid garbled transmissions, only one device should respond to
a particular message. Therefore, every device on the loop must have a unique
address.
If you have an instrument with more than one channel, transmission must be
addressed to the appropriate channel within the instrument.
7.3.2 Parameters
All SC instruments use no parity, 8 data bits, and 1 stop bits (“N,8,1”) for serial com-
munications. Baud rates available are 300, 600, 1200, 2400, 4800, 9600, 19200
and 38400. As shipped from the factory, all instruments are set at 9600 baud. The
baud rate can be selected though the front panel.
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7.4 Serial Com Menu
7.4.1 Overview
The Serial Com menu allows you to examine and change the settings for serial com-
munications as well as test the communications link.
Detailed instructions on operating the SC instrument in the SETUP Menu mode can
7.4.2 INTERFACEMenu
Item
This menu item indicates which serial communications interface is installed in the
instrument: “RS-232” or “RS-485”.
7.4.3 ADDRESSMenu
Item
This allows you to examine and change the two-character address that the instrument
will respond to. The default address of “00” (ASCII codes decimal 30, decimal 30).
7.4.4 BAUD RATEMenu
Item
This allows you to examine and change the baud rate that the instrument uses for
serial communications. The default baud rate is 9600.
7.4.5 AUTO LINE-FEED
Menu Item
This allows you to examine the setting (on/off) of the auto line-feed function. When
set to “on”, a line-feed character (ASCII code decimal 10) is transmitted just before the
carriage return (ASCII code decimal 13) that signifies the end of the instrument’s
response.
If the instrument is connected to a dumb terminal or printer, inserting a line feed before
the carriage return will make each message sent by the instrument appear on a sepa-
rate line and thus be easier to read.
The default setting is “on”.
7.4.6 TRANSMIT TEST
Menu Item
When this menu item is selected, the instrument immediately transmits the message
“ADDRESS nn TEST” where “nn” is the two-character address of the instrument. Then the
message “MESSAGE SENT” is shown on the display. This helps detect wiring or other prob-
lems with serial communications from the instrument to the computer or PLC.
7.4.7 LEAVE MENUMenu
Item
When the menu item is displayed, press [ENTER] to leave this menu. Press [EXIT] to
return to the RUN mode.
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Chapter 8
Display Menu
8.1 Overview
The Display menu allows you to examine and change settings that affect the oper-
ation of the display of the SC instrument. You can change which channel is dis-
played when the instrument is powered-up and what information is shown on the
lower line of SC1000, SC2000 and SC2001 instruments.
Detailed instructions on operating the SC instrument in the SETUP Menu mode
8.2 Menu Items for Models SC1000, SC2000, SC2001
These instruments have a dual-line display which consists of an upper line and a
lower line.
8.2.1 UPPER CHANNELMenu
Item
Specifies the channel that is displayed on the upper line when the instrument is
powered-up.
To change whether the channel’s track, peak or valley data value is displayed on
power-up, use the channel’s “OPERATION -> POWER-ON SOURCE” menu item.
8.2.2 LOWER CHANNEL Menu
Item
Specifies the channel that is displayed on the lower line when the “LOWER MODE”
menu item is set to “CHANNEL”.
To change whether the channel’s track, peak or valley data value is displayed on
power-up, use the channel’s “OPERATION -> POWER-ON SOURCE” menu item.
8.2.3 LOWER MODE Menu
Determines what is displayed on the lower line. The choices are:
Item
•
•
“BLANK” means that nothing is displayed.
“LIMIT 01-04” means that the status of Limit 1, Limit 2, Limit 3, and Limit 4 are
displayed as described in “Indicator Lights” on page 21
“CHANNEL” means that the channel specified with the “LOWER CHANNEL” menu item
is displayed.
•
8.2.4 DISPLAY DISABLE
Menu Item
Determines if the display is enabled or not. In some applications, the display is
not used in order to reduce power consumption; the instrument is then completely
controlled with the Serial Communications interface. The choices are:
•
•
“OFF” means that the display operates normally.
“ON” means that the display is blanked after the instrument is powered up.
Pressing any button on the front panel will temporarily re-enable the display
until the instrument is reset.
8.3 Menu Items for Model SC3004
8.3.1 POWER-ON CHANNEL
Specifies the channel that is selected when the instrument is powered up.
Menu Item
To change whether the channel’s track, peak or valley data value is displayed on
power-up, use the channel’s “OPERATION -> POWER-ON SOURCE” menu item.
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Chapter 9
Limits
9.1 Understanding Limits, Set Points and Return Points
Limits are signal levels at which some action (such as a light to come on or go out,
or a switch to close) is desired to take place. The point at which this action takes
place is the SET POINT. The RETURN POINT is the point at which the action that
took place at the SET POINT returns to its original state.
If the SET POINT and RETURN POINT are identical and the signal level is
changing slowly near these points, “chatter” may result and the limit rapidly ener-
gizes and de-energizes. To keep this from happening, we can specify the SET
POINT at which the action would occur as well as the RETURN POINT where we
want the action to cease. If the amount of “dead band” between these two values
is more than the expected noise, the desired action will take place only once. The
SET POINT and the RETURN POINT should always be separated to insure that
small amounts of noise on the signal will not become a problem.
A good general rule for SET POINT and RETURN POINT values is that they
should be separated by at least one percent of the full-scale value.
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9.2 Limit Operation
9.2.1 Actions When
Activated
When Limits 1, 2, 3, or 4 are activated, the following actions occur:
•
•
The front panel light for the limit will illuminate.
The corresponding open-collector Limit Output pin on the System connector will
be connected to the DGND (Digital Ground) pin.
•
If a Relay Output channel is installed, the relay for the limit will activate.
A Relay Output channel can be installed for Limits 5, 6, 7, and 8. When these limits
are activated, the following actions occur:
•
If the display is monitoring the channel of this Relay Output channel, the display
will indicate the status of these limits.
•
•
On a Model SC3004, the front panel light for the limit will illuminate.
The relay for the limit on this Relay Output channel will activate.
A Relay Output channel can be installed for Limits 9, 10, 11 and 12. When these limits
are activated, the following actions occur:
•
If the Relay Output channel is displayed, the display will indicate the status of
these limits.
•
The relay for the limit on this Relay Output channel will activate.
A Relay Output channel can be installed for Limits 13, 14, 15 and 16. When these lim-
its are activated, the following actions occur:
•
If the Relay Output channel is displayed, the display will indicate the status of
these limits.
•
The relay for the limit on this Relay Output channel will activate.
9.2.2 Scan Time
The “scan time” or update rate of the limits depends on how many channels are
installed in the instrument. To determine the scan time of the limits for your particular
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9.3 Limit Menus
9.3.1 Overview
There are four, eight, twelve or sixteen Limit menus depending on how many
Relay Output channels are installed in the instrument. These menus determine
the operation of the each of the limits.
If no Relay Output channels are installed, there are four Limit menus which control
the operation of the open-collector Limit Outputs on the System connector.
Detailed instructions on operating the instrument in the SETUP Menu mode can
9.3.2 LIMIT.ENABLEMenu
Item
This enables or disables the operation of this limit. The two options for this menu
item are “ON” and “OFF”.
9.3.3 LIMIT.SETPOINT
Menu Item
This is the numeric value in engineering units for the signal level that activates the
limit.
9.3.4 LIMIT.RETURN PNT
Menu Item
This is the numeric value at which the limit deactivates. In general, this number
should differ from the set point values by at least 1% of full scale.
Carefully consider what value should be entered for the RETURN POINT. If the
signal is expected to approach the SET POINT from a lower value, the RETURN
POINT value should be less (algebraically) than the SET POINT. If the signal is
expected to approach the SET POINT from a higher level, the RETURN POINT
should be higher (algebraically) than the SET POINT.
9.3.5 LIMIT.ENERGIZE
Menu Item
This specifies when to activate the limit relative to the set point and return point.
The options for this menu item are:
•
•
•
•
“SIGNAL > SETPOINT” means the limit will activate when the signal is higher than
the set point.
“SIGNAL < SETPOINT” means the limit will activate when the signal is lower than
the set point.
“SIGNAL INSIDE” means the limit will activate when the signal is in between the
set point and the return point.
“SIGNAL OUTSIDE” means the limit will activate when the signal is not in between
the set point and the return point.
The figures below further illustrate the differences between these settings.
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Figure 9-1: Limit Operation when LIMIT.ENERGIZE= SIGNAL > SETPOINT
Figure 9-2: Limit Operation when LIMIT.ENERGIZE= SIGNAL < SETPOINT
Figure 9-3: Limit Operation when LIMIT.ENERGIZE= SIGNAL INSIDE
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Figure 9-4: Limit Operation when LIMIT.ENERGIZE= SIGNAL OUTSIDE
9.3.6 LIMIT.LATCHING
Menu Item
This specifies whether to latch the activated limit so that only manually clearing the
limit will deactivate it. A latched limit can be manually cleared by pressing the
[CLEAR] button, sending the “F8” serial communications command, or by using the
Function Input #2 (Clear Peak/Valley & Limits pin on the System Connector. See
The options for this menu item are:
•
“ON” means that once a signal activates the limit, the limit will remain activated until
it is reset.
•
“OFF” means that the limit will deactivate immediately when the signal crosses the
return point.
9.3.7 LIMIT.CHANNEL
This specifies the channel that is monitored by this limit.
Menu Item
9.3.8 LIMIT.SOURCE
Menu Item
This designates the data source of the channel monitored by this limit. Each channel
has three data sources: the live tracking value (TRACK), its highest value (PEAK),
and its lowest value (VALLEY).
The options for this menu item are:
•
•
“TRACK” means the live tracking value of the channel.
“PEAK” means the highest value of the channel since the peak/valley detector was
last cleared.
•
“VALLEY” means the lowest value of the channel since the peak/valley detector was
last cleared.
9.3.9 LEAVE MENUMenu
Item
When the menu item is displayed, press [ENTER] to leave this menu. Press [EXIT] to
return to the RUN mode.
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Chapter 10
Strain-Gage Input Channel
10.1 Features
The Strain-Gage Input channel provides a DC excitation voltage to and accepts
millivolt signals from strain-gage transducers. These millivolt signals are digitized,
converted into engineering units, and placed into the track, peak and valley data
values of the channel. Setup and calibration of the channel can be made manu-
ally through the SETUP mode or automatically if the transducers are equipped
The analog-to-digital converter input circuit is ratiometric to the excitation voltage,
features adjustable digital, low-pass filtering, 12- to 18-bit resolution (depending
on the filter setting) and has several different mV/V input ranges. These many
input ranges allow ±50,000 count resolution (at the slowest filter setting) across a
wide variety of mV/V input ranges.
Three methods of calibrating the Strain-Gage Input channel to the transducer are
available: known-load calibration, shunt calibration and mV/V calibration. The
Two rear panel control inputs can be field-configured for such functions as remote
tare, disabling peak/valley detection and clearing the peak/valley values. A volt-
age or current digital-to-analog output is also provided.
Many diagnostic functions are performed automatically to insure correct wiring
and operation of the transducer.
FP2000 Transducers
The Strain-Gage Input channel has its own internal shunt resistor for use in Shunt
Calibration. It is not compatible with FP2000 mV/V output transducers that are
equipped with “Buffered Shunt Calibration”. If you wish to use Shunt Calibration
with an FP2000 transducer, use an FP2000 with Buffered Shunt cal and amplified
output (e.g. 5 VDC, 10 VDC or 4-20mA) connected to an SC's High-Level Input
channel.
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10.2 Wiring
Connect the transducer to a Strain-Gage Input channel by wiring it to the 12-pin con-
nector of that channel. The Customer Information Sheet that shipped with the instru-
ment describes which cards are installed in each channel. The pin-out for this
connector is shown on the following table.
Table 4-3: Strain-Gage Input Channel Pin Connections
Pin
Label
Function
Reference Pin
1 (top)
+EXC
+SEN
-SEN
-EXC
+SIG
-SIG
(+)Excitation
(+)Sense
10
10
10
10
10
10
8
2
3
(-)Sense
4
(-)Excitation
5
(+)Signal
6
(-)Signal
7
+OUT
-OUT
+MEM
-MEM
AUX1
Analog Output
Analog Return
(+)Signature
8
-
9
10
-
10
11
(-)Signature / Digital Ground
Auxiliary Function 1
(connect to pin 10 to activate)
10
12
(bottom)
AUX2
Auxiliary Function 2
(connect to pin 10 to activate)
10
The Analog Output and Analog Return pins are electrically isolated from all other pins
on the instrument.
The maximum recommended cable length to a Signature Module is 100 feet [30m].
NOTICE
If you are not using remote sensing of excitation, jumper (+)Sense to (+)Excita-
tion and (-)Sense to (-)Excitation. If nothing is connected to (+)Sense and (-
)Sense, the instrument will enter the ERROR mode with error code 46.
Figure 10-1: Unamplified Transducer Connection to Strain-Gage Input Channel
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10.3 Calibration Procedure
If you are not familiar with operating the instrument in the SETUP menu mode,
Step 1: Wire the transducer to the channel’s connector.
Step 2: Enter the CALIBRATION TYPE.
There are three methods that can be used to calibrate the transducer to the
Input Channel. Each has advantages and disadvantages as described in
application in order to select the appropriate calibration type.
Step 3: Enter the CALIBRATION DATA.
If your transducer has Signature Calibration, you don’t need to enter these
values as they are entered automatically.
If your transducer was ordered and shipped along with the instrument, you
don’t need to enter these values as they have been entered at the factory.
Otherwise, consult the Certificate of Calibration for the transducer when
entering information in the CALIBRATION DATA sub-menu.
Step 4: Perform the calibration.
Otherwise, use the CALIBRATE menu item to start the calibration process. You
will be prompted to apply loads to the transducer as required.
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10.4 Specifications
TRANSDUCER INPUT
Transducer type
full-bridge, strain gage
Excitation Voltage
5 or 10 VDC,
short circuit protected with sensing
Transducer full-scale output
.5 to 11.0 mV/V @ 5V excitation
.5 to 5.5 mV/V @ 10 V excitation
Amplifier Gain Selection
Calibration Type
automatic
shunt, mV/V or
2-, 3- or 5- point known load
Differential Input Voltage
A/D Converter
+/- 55mV (max.)
24-bit Sigma-Delta
digital, 24-tap FIR
Low-pass filter
Resolution and Frequency Response
INSTRUMENT-ONLY ACCURACY
(Sense wires used;Frequency Response setting<=16Hz;
Linearity, repeatability & hysteresis)
mV/V Calibration
±0.1% F.S.
Known -Load Calibration
±0.01% F.S.
AUXILLIARY INPUTS
Quantity
2
Type
momentary contact closure
< 5ms
Response Time
Field-Selectable Functions
tare on, tare off,
peak/valley clear, peak/valley hold,
track hold
ANALOG OUTPUT
Output voltage range
5, ±5, 10 or ±10 VDC (field selectable)
4-20 mA
Output current range (optional current
output channels)
Source
Isolation
any channel’s track, peak or valley value
500V
Resolution
13 bits
Frequency Response
same as input when driven by the same
channel’s tracking data
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10.5 Channel Menu
Each Strain-Gage Input channel is configured and calibrated via its channel
menu. Detailed instructions on operating the instrument in the SETUP Menu
is located in “Setup Menu Reference” on page 157.
10.5.1 OPERATION
Sub-Menu
This menu controls the operation of this channel when the instrument is in the
RUN mode.
AUTO-ZEROMenu Item
This enables or disables the channel’s automatic zeroing function. The auto-zero
function can be beneficial by removing the effect of slight temperature shifts in the
transducer’s output. The two options for this menu item are “ON” and “OFF”.
When enabled, the channel will reset its tracking value to zero when the tracking
value has never been more positive than +10 or more negative than -10 display
counts for any 10 second period.
For example, assume that the DISPLAY.DECPT menu item is set to 000.00 (two deci-
mal points). If the tracking value never leaves the range of -000.10 to +000.10 for
any 10 second period, then tracking value will reset to 000.00 automatically.
NOTICE
To compensate for the transducer’s initial warm-up shift, the auto-zero function
operates every 2 seconds during the first 60 seconds of RUN mode operation.
FREQ. RESPONSEMenu Item
This sets the frequency response, step response, and resolution of the channel
according to the table below. The tracking value, peak/valley detector values and
analog output on this channel are all affected. The default value of 016. HERTZ is
suitable for most applications.
Resolution (counts) (not
including min. 10% overrange/
underrange capability)
Frequency
Response
Step Response
(ms) (typical)
002. HERTZ/FAST
002. HERTZ
008. HERTZ
016. HERTZ
032. HERTZ
050. HERTZ
100. HERTZ
250. HERTZ
500. HERTZ
800. HERTZ
40
440
110
55
28
16
8
±50000
±50000
±25000
±20000
±10000
±5000
±5000
3
±2000
2
±2000
2
±2000
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POWER-ON SOURCE Menu Item
This menu selects which value is displayed by the channel when first entering the
RUN mode.
The choices are:
•
•
•
•
“TRACK” means the live tracking value of the channel.
“PEAK” means the highest value of the channel.
“VALLEY” means the lowest value of the channel.
“TRACK / PEAK” means the live tracking value and the highest value of the channel.
(Only available on Model SC3004).
•
•
“TRACK / VALLEY” means the live tracking value and the lowest value of the channel.
(Only available on Model SC3004).
“PEAK / VALLEY” means the highest and lowest values of the channel.
(Only available on Model SC3004).
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10.5.2 DISPLAY SETUP
Sub-Menu
This menu controls how data values are displayed by the channel and transmitted
via serial communications.
DISPLAY. DIGITSMenu Item
Selects the number of digits displayed by the channel. The choices are:
•
•
•
“5 DIGIT-BIPOLAR” displays both positive and negative numbers with five full dig-
its (±99999).
“6 DIGIT-UNIPLOAR” displays positive numbers with six full digits (999999) and
negative numbers with five full digits (-99999).
“7 DIGIT UNIPOLAR” displays positive number with seven full digits (9999999)
and negative numbers with six digits (-999999).
This menu item may be automatically updated by a transducer’s Signature Mod-
ule.
DISPLAY. DECPTMenu Item
Selects the decimal point location on the channel’s display and serial communica-
tions output. Use the [UP] and [DOWN] buttons to move the decimal point to the
right and left.
This menu item may be automatically updated by a transducer’s Signature Mod-
ule.
DISPLAY. COUNT-BYMenu Item
Determines by what value the display increments or decrements. This will make
the display less sensitive to a noisy signal. The choices are:
•
•
•
•
•
•
•
•
“00001”
“00002”
“00005”
“00010”
“00020”
“00050”
“00100”
“00200”
This menu item may be automatically updated by a transducer’s Signature Mod-
ule.
DISPLAY. UNITSMenu Item
Specifies the four character label that is displayed to the right of the channel’s val-
ues.
NOTICE
This menu item doesn’t change the mathematical scaling of the channel’s val-
ues; that can be changed by altering the “CALIBRATION DATA -> FULL SCALE VALUE”
menu item and then performing a re-calibration.
When a character position is flashing press the [UP] or [DOWN] button to change
the character. Press [ENTER] to advance to the next character.
This menu item may be automatically updated by a transducer’s Signature Mod-
ule.
DISPLAY. AVERAGEMenu Item
Controls the speed with which the channel’s display values will update. Display
averaging does not affect the channel’s analog output or its peak/valley detection,
which will proceed at the speed selected by the ”OPERATION -> FREQ. RESPONSE” menu
item. The choices are:
•
“ON” means that the display will update four times each second. The channel’s
values will be averaged for 1/4 second, then displayed.
•
“OFF” means that the channel’s display will update as quickly as possible.
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10.5.3 AUXn FUNCTION
Menu Items
The AUX1 FUNCTION and AUX2 FUNCTION menu items determine what happens when the
Auxiliary Function pins (labeled as “AUX1” and “AUX2”) on the channel’s connector
are activated. These pins are “activated” when they are connected to the (-)Signature
(labeled as “-MEM”) pin. The choices are:
•
•
•
•
•
•
“DISABLED” means that activating the pin does nothing.
“TRACK HOLD” means that the tracking, peak and valley values will not be updated.
“HIGH/LOW HOLD” means that the peak and valley values will not be updated.
“HIGH/LOW CLEAR” means that the peak and valley values are reset.
“TARE ON” activates the channel’s Tare function (resets it to zero).
“TARE OFF” deactivates the channel’s Tare function.
As the Auxiliary Function pins are not isolated, it is recommended that a push-button
switch or relay is used to connect these pins to the (-)Signature pin.
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10.5.4 CALIBRATION TYPE
Menu Item
This chooses the type of calibration technique to be used. There are three meth-
ods that can be used to calibrate the transducer to the Input Channel. Each has
advantages and disadvantages as described in the table below.
Table 4-4: Comparison of Calibration Types
2-, 3-, or 5-
Shunt
mV/V
point
Calibration
Calibration
KnownLoad
Calibration
RECOMMENDED...
...for most applications
no
yes
yes
no
no
...when frequently swapping
transducers
yes
...when best possible accuracy
required
no
no
yes
PROS and CONS
Relative accuracy
good
no
better
no
best
yes
Requires actual, calibrated loads
to be applied
Automatically calibrates with Sig-
nature Calibration transducers
yes
yes
no
Max. distance of transducer from
instrument w/out sense wires
15’ [5m]
15’ [5m]
50’ [15m]
100’ [30m]
300’ [100m]
300’ [100m]
Max. distance of transducer from
instrument with sense wires
CALIBRATION TECHNIQUE
Zero-scale point from...
Full-scale point from...
applied load
applied load
applied load
applied load
transducer
output when
shuntresistor
applied
internal refer-
ence
Linearity correction from...
data stored in datastored in 2-point: none
Signature
Module (if
available)
Signature
Module (if
available)
3- or 5-point:
applied load
It is important to know your application in order to select the appropriate cali-
bration type. mV/V (“millivolt-per-volt”) Calibration is recommended for most
applications because it doesn’t require known loads and it allows easy swapping
of transducers equipped with Signature Calibration. When the best possible
accuracy is required, Known-Load Calibration is recommended.
The choices for this menu item are:
•
“TYPE= SHUNT CAL” means Shunt Calibration. First, you are prompted to apply
the load entered in the “ZERO SCALE VALUE” register. Next, the instrument inserts
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a known, precision resistor into the transducer circuit, which causes a predictable
apparent signal. The instrument then takes a reading and adjusts itself using the
“SHUNT CAL VALUE” register.
•
“TYPE= MV/V CAL” means Millivolt-per-Volt Calibration. First, you are prompted to
apply the load entered in the “ZERO SCALE VALUE” register. Next, the instrument takes
a reading from an accurate, internal mV/V reference. The instrument then uses
the “FULL SCALE MV/V” and “FULL SCALE VALUE” values in mathematical calculations to
scale its tracking values.
•
•
“TYPE= 2 POINT CAL” means 2-Point Known Load Calibration. You are prompted to
apply the loads to the transducer that were entered in the “KNOWN POINT 1/2” and
“KNOWN POINT 2/2” registers. This technique assumes that the transducer is linear,
so the usual loads used are zero scale and full scale.
“TYPE= 3 POINT CAL” means 3-Point Known Load Calibration. You are prompted to
apply the loads to the transducer that were entered in the “KNOWN POINT 1/3” and
“KNOWN POINT 2/3” and “KNOWN POINT 3/3” registers. This technique can be used to
compensate for the non-linearity in the transducer. The usual loads used are zero
scale, half scale and full scale, but you are not restricted to these loads.
“TYPE= 5 POINT CAL” means 5-Point Known Load Calibration. You are prompted to
apply the loads to the transducer that were entered in the “KNOWN POINT 1/5”, “KNOWN
POINT 2/5”, “KNOWN POINT 3/5”, “KNOWN POINT 4/5” and “KNOWN POINT 5/5” registers. This
technique can be used to compensate for the non-linearity in the transducer. The
usual loads used are zero scale, one-quarter scale, half scale, three-quarters
scale and full scale, but you are not restricted to these loads.
•
The selection of the calibration type affects what menu items appear in the CALIBRATION
DATA sub-menu.
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10.5.5 CALIBRATION DATA
Sub-Menu
This enters the values that will be used by the instrument when it calibrates itself
to the transducer. The menu items that are displayed will change according to
what the CALIBRATION TYPE is set for.
EXCITATIONMenu Item
This sets the excitation voltage used to power up the transducer. The choice are:
•
•
“EXCITATION=5VDC” means 5 volts DC excitation.
“EXCITATION=10VDC” means 10 volts DC excitation.
This menu item may be automatically updated by a transducer’s Signature Mod-
ule.
FULL SCALE MV/VMenu Item
The transducer output when its full-scale load is applied to it, in milliVolts-per-Volt.
This menu item is used by the instrument to set the gain of its amplifier circuit, and
(when the CALIBRATION TYPE is set to mV/V Calibration) to calibrate the instrument.
This value is normally found on the transducer’s Certificate of Calibration issued
by its manufacturer.
This menu item may be automatically updated by a transducer’s Signature Mod-
ule. It is available for all calibration types.
FULL SCALE VALUEMenu Item
ZERO SCALE VALUEMenu Item
SHUNT CAL VALUEMenu Item
The transducer’s full-scale output in engineering units.
This menu item may be automatically updated by a transducer’s Signature Mod-
ule. It is available only with the Shunt Calibration and mV/V Calibration types.
The transducer’s zero-scale output in engineering units, which is usually zero.
This menu item may be automatically updated by a transducer’s Signature Mod-
ule. It is available only with the Shunt Calibration and mV/V Calibration types.
The shunt calibration value must be calculated by using information found on the
transducer’s Certificate of Calibration and the following formula:
Shunt-Calibration Output
-------------------------------------------------------------
SHUNT CAL VALUE =
× Full-Scale Capacity
Full-Scale Output
The terms have the following meanings:
•
•
•
Shunt-Calibration Output: The transducer’s output under shunt calibration
conditions in mV/V. Sometimes called “Shunt Cal. Factor”.
Full-Scale Output: The transducer’s full-scale output in mV/V. Sometimes
called “Calibration Factor”.
Full-Scale Capacity: The transducer’s desired full-scale reading in engineer-
ing units (PSI, lbs, Kg, etc.). You may wish to convert the engineering units of
this value. For example, if the transducer full scale is 3000PSIG and you wish
the channel to read in bar, you must convert 3000PSIG into 206.84 bar.
This menu item may be automatically updated by a transducer’s Signature Mod-
ule.
The shunt resistor’s ohmic value used to generate the Shunt-Calibration Output is
given on the transducer’s Certificate of Calibration. Normally, the instrument has
a shunt calibration resistor of 59000 (59K) ohms installed. If your transducer and
instrument were purchased at the same time from Sensotec, the correct shunt
resistor has been installed.
This menu item is only available with the Shunt Calibration type.
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Figure 10-2: Shunt Calibration Resistor Location
To verify proper transducer operation, you can apply the shunt resistor to the trans-
ducer while the instrument is in the RUN mode. Press and hold the [ENTER] button
for three seconds; this will apply the shunt resistor and display the reading.
KNOWN POINT x/yMenu Items
This enters the engineering units for the known-load calibration points. These points
must match the actual loads that you will apply to the instrument during calibration.
The number of calibrations points depends on the CALIBRATION TYPE.
When using the 2-Point Known Load Calibration type, the following menu items are
available:
•
•
“KNOWN POINT 1/2”: point 1 of 2, usually 0% of the transducer’s full-scale capacity.
“KNOWN POINT 2/2”: point 2 of 2, usually 100% of the transducer’s full-scale capacity.
When using the 3-Point Known Load Calibration type, the following menu items are
available:
•
•
•
“KNOWN POINT 1/3”: point 1 of 3, usually 0% of the transducer’s full-scale capacity.
“KNOWN POINT 2/3”: point 2 of 3, usually 50% of the transducer’s full-scale capacity.
“KNOWN POINT 3/3”: point 3 of 3, usually 100% of the transducer’s full-scale capacity.
When using the 5-Point Known Load Calibration type, the following menu items are
available:
•
•
•
•
•
“KNOWN POINT 1/5”: point 1 of 5, usually 0% of the transducer’s full-scale capacity.
“KNOWN POINT 2/5”: point 2 of 5, usually 25% of the transducer’s full-scale capacity.
“KNOWN POINT 3/5”: point 3 of 5, usually 50% of the transducer’s full-scale capacity.
“KNOWN POINT 4/5”: point 4 of 5, usually 75% of the transducer’s full-scale capacity.
“KNOWN POINT 5/5”: point 5 of 5, usually 100% of the transducer’s full-scale capacity.
NOTICE
To insure both correct operation of the transducer and application of the load,
the instrument expects the voltage applied at each known-load point to be
increasing. For example, the load applied at Known-Load Point 2/2 must
cause the transducer to produce a more positive voltage than at Known-Load
Point 1/2.
These menu items are only available with the Known-Load Calibration types.
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10.5.6 CALIBRATEMenu
Item
This menu item performs a calibration according to what was entered in the CALI-
BRATION TYPE and CALIBRATION DATA menu items.
NOTICE
Before performing a calibration, the transducer must be connected to the
NOTICE
For maximum accuracy, allow at least twenty minutes of warm-up with the exci-
tation voltage applied to the transducer before calibration.
If the CALIBRATION TYPE is Shunt Calibration...
•
The display will read DOING SHUNT CAL, and prompt you to APPLY 00000 UNIT(where
00000 and UNIT are previously entered as ZERO SCALE VALUE and DISPLAY.
UNITS. When you have applied this load to the transducer, press [ENTER].
The display will then read WORKING and calibration will take place. Upon com-
pletion, the display will indicate DONE and the instrument will return to the RUN
mode.
•
If the CALIBRATION TYPE is mV/V Calibration...
•
The display will read DOING MV/V CAL, and prompt you to APPLY 00000 UNIT (where
00000 and UNIT are previously entered as ZERO SCALE VALUE and DISPLAY.
UNITS). When you have applied this load to the transducer, press [ENTER].
The display will then read WORKING and calibration will take place. Upon com-
pletion, the display will indicate DONE and the instrument will return to the RUN
mode.
•
If the CALIBRATION TYPE is 2-Point Known Load Calibration...
•
•
•
The display will read DOING 2POINT CAL, and prompt you to APPLY 00000 UNIT
(where 00000 and UNIT are previously entered as KNOWN POINT 1/2and DISPLAY.
UNITS). When you have applied this load to the transducer, press [ENTER].
The display will read WORKING, then APPLY 01000 UNIT(where 01000 and UNIT are
previously entered as KNOWN POINT 2/2 and DISPLAY. UNITS). When you have
applied this load to the transducer, press [ENTER].
Upon completion, the display will indicate DONEand the instrument will return to
the RUN mode.
If the CALIBRATION TYPE is 3-Point Known Load Calibration...
•
•
•
The display will read DOING 3POINT CAL, and prompt you to APPLY 00000 UNIT
(where 00000 and UNIT are previously entered as KNOWN POINT 1/3and DISPLAY.
UNITS). When you have applied this load to the transducer, press [ENTER].
The display will read WORKING, then APPLY 00500 UNIT(where 00500 and UNIT are
previously entered as KNOWN POINT 2/3 and DISPLAY. UNITS). When you have
applied this load to the transducer, press [ENTER].
The display will read WORKING, then APPLY 01000 UNIT(where 01000 and UNIT are
previously entered as KNOWN POINT 3/3 and DISPLAY. UNITS). When you have
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applied this load to the transducer, press [ENTER].
Upon completion, the display will indicate DONE and the instrument will return to the
RUN mode.
•
If the CALIBRATION TYPE is 5-Point Known Load Calibration...
•
•
•
•
•
•
The display will read DOING 5POINT CAL, and prompt you to APPLY 00000 UNIT (where
00000 and UNIT are previously entered as KNOWN POINT 1/5 and DISPLAY. UNITS).
When you have applied this load to the transducer, press [ENTER].
The display will read WORKING, then APPLY 00250 UNIT (where 00250 and UNIT are pre-
viously entered as KNOWN POINT 2/5 and DISPLAY. UNITS). When you have applied this
load to the transducer, press [ENTER].
The display will read WORKING, then APPLY 00500 UNIT (where 00500 and UNIT are pre-
viously entered as KNOWN POINT 3/5 and DISPLAY. UNITS). When you have applied this
load to the transducer, press [ENTER].
The display will read WORKING, then APPLY 00750 UNIT (where 00750 and UNIT are pre-
viously entered as KNOWN POINT 4/5 and DISPLAY. UNITS). When you have applied this
load to the transducer, press [ENTER].
The display will read WORKING, then APPLY 01000 UNIT (where 01000 and UNIT are pre-
viously entered as KNOWN POINT 5/5 and DISPLAY. UNITS). When you have applied this
load to the transducer, press [ENTER].
The display will now read RETURN PNTS.=NO. If you press [ENTER], the display will
indicate DONE and the instrument will return to the RUN mode. If you use the [UP]
button and [ENTER] to select RETURN POINTS=YES, you may now apply the same
loads again but in reverse order. This will allow the instrument to measure and
partially eliminate any hysteresis that may be present in the transducer. After the
loads have been applied again, the display will indicate DONE and the instrument
will return to the RUN mode.
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10.5.7 DAC SETUPSub-Menu
This sub-menu contains four items that control the Digital-to-Analog Converter
(DAC) output of the channel.
DAC. CHANNELMenu Item
This chooses which channel will drive the DAC output. Normally, the DAC located
on a particular channel will be driven by that channel, but that need not be the
case. For example, if several channels were assigned to load cells on a weighing
platform, the sum of all channels could (mathematically) drive one channel’s DAC
output.
If the DAC is set-up to be driven by its own channel’s tracking value, the Analog
Output will have the frequency response specified by the channel’s FREQ. RESPONSE
menu item. Otherwise, the Analog Output will operate more slowly.
DAC. SOURCE Menu Item
This designates the data source of the channel monitored by the analog output.
The options for this menu item are:
•
•
“TRACK” means the live tracking value of the channel.
“PEAK” means the highest value of the channel since the peak/valley detector
was last cleared.
•
“VALLEY” means the lowest value of the channel since the peak/valley detector
was last cleared.
If the DAC is set-up to be driven by its own channel’s tracking value, the Analog
Output will have the frequency response specified by the channel’s FREQ. RESPONSE
menu item. Otherwise, the Analog Output will operate more slowly.
DAC. ZERO-SCALEMenu Item
This specifies what value, in engineering units, corresponds to zero output on the
Analog Output.
“Zero output” might be 0 Volts, 2.5 Volts, 5 Volts, 4 mA or 12 mA depending on if
Output Configuration” on page 76 the for details.
If the UPDATE DAC SETUP menu item is set to “ON” and the DAC. CHANNEL menu item is
set to this channel, this menu item may be automatically updated by a trans-
ducer’s Signature Module. If the UPDATE DAC SETUP menu item is “OFF”, a trans-
ducer’s Signature Module will not change this menu item.
DAC. FULL-SCALEMenu Item
Specifies what value, in engineering units, corresponds to full output on the Ana-
log Output.
“Full output” might be 5 Volts, 10 Volts or 20 mA depending on if the channel has
ration” on page 76 for details.
If the UPDATE DAC SETUP menu item is set to “ON” and the DAC. CHANNEL menu item is
set to this channel, this menu item may be automatically updated by a trans-
ducer’s Signature Module. If the UPDATE DAC SETUP menu item is “OFF”, a trans-
ducer’s Signature Module will not change this menu item.
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10.5.8 SIGNATURE
MODULESub-Menu
UPDATE SIG.MOD?Menu Item
Updates the information stored in the transducer’s Signature Module with any new
settings that is entered into the instrument with the SETUP menus. The settings that
will be updated are:
•
•
•
•
•
EXCITATION
FULL SCALE MV/V
FULL SCALE VALUE
SHUNT CAL VALUE
DISPLAY. UNITS
Note that changes made to the instruments display setup (such as decimal point and
count-by settings) are not updated into the Signature Module.
Updating enters these new settings from the instrument into the Signature Module. If
you do not update the Signature Module, connect a different transducer to the instru-
ment and then re-connect the original transducer again, the instrument will revert to
the settings that are stored inside the Signature Module.
The options for this menu item are:
•
•
“NO” will not update the Signature Module.
“YES” will display WORKING, update the Signature Module, then display DONE.
DEFAULT SIG.MOD?Menu Item
This menu item will overwrite any user settings in the Signature Module with the origi-
nal default settings. The Signature Module always maintains a copy of the original
default settings that were created at the factory.
The options for this menu item are:
•
•
“NO” will not restore original default settings.
“YES” will display WORKING, update the Signature Module, with the original factory set-
tings, then display DONE.
UPDATE DAC SETUPMenu Item
This menu item determines whether or not the DAC. FULL SCALE and DAC. ZERO SCALE Ana-
log Output settings are overwritten with information from a Signature Module when a
new transducer is detected by the instrument.
The options for this menu item are:
•
“YES” will allow a newly detected Signature Module to update the Analog Output
settings.
•
“NO” will not allow automatic updating of the Analog Output settings.
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10.5.9 DIAGNOSTICS
Sub-Menu
DAC FULL SCALEMenu Item
When this menu item is selected, the Analog Output of the channel is forced to its
full-scale output, then DAC UPDATED is displayed. This is useful when calibrating or
trimming the readout connected to the Analog Output.
DAC ZERO SCALEMenu Item
When this menu item is selected, the Analog Output of the channel is forced to its
zero-scale output, then DAC UPDATED is displayed. This is useful when calibrating or
trimming the readout connected to the Analog Output.
VERSION INFOMenu Item
DISPLAY ADCMenu Item
This menu item displays the part number and revision level of the firmware used
by this channels microprocessor.
The options for this menu item are:
•
“OFF” will allow the [VALUE] button to cycle through “TK” (tracking value), “HI”
(peak value) and “LO” (valley value). This is the recommended option.
“ON” will allow the “AD” (percentage of the Analog-to-Digital converter’s full-
scale digitizing capability) display source to be available along with “TK” (track-
ing value), “HI” (peak value) and “LO” (valley value) when the [VALUE] button
is pressed on the front panel.
•
The Analog-to-Digital converter counts are displayed as a percentage from
-100.00% to 100.00%.
This can be used to verify that the transducer’s output does not exceed the input
range of the instrument. If the Analog-to-Digital converter readings display more
than +/-10% when there is no load on the transducer, the transducer has a high
zero offset.
LINEARIZATION Menu Item
The options for this menu item are:
•
“ON” will allow linearization data obtained from either the Signature Module or a
3-Point or 5-Point Known Load Calibration to affect a channel’s scaled values.
This is the recommended option.
•
“OFF” will not allow linearization data to effect the channel’s scaled values.
This is useful when diagnosing problems in a calibration procedure.
DISABLE CHANNEL Menu Item
The options for this menu item are:
•
“ON” will bypass the INITIALIZE and RUN modes of the channel. The track,
peak and valley values of the channel are forced to 0. This option is helpful
when a channel is installed but not being used. ERROR 46, which will nor-
mally occur when the (+)Sense and (-)Sense wires are not connected prop-
erly, will be surpressed.
•
“OFF” will allow normal operation of the channel.
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10.6 Analog Output Configuration
10.6.1 Identifying the
Output Type
A Strain-Gage Input channel is available with one of two types of digital-to-analog
(DAC) outputs: voltage or current. You can determine which type of output a
channel has by one of three ways:
•
•
Consulting the instrument’s Customer Information Sheet
Examining the SYSTEM MENU -> CONFIGURATION -> CHANNEL nn TYPE menu item where
nn is the number of the channel. If the channel’s type is STRAIN GAGE V, it has a
voltage output. If the channel’s type is STRAIN GAGE I, it has a current output.
Examining the channel’s circuit board as shown in the figure below.
•
10.6.2 Channel Menu Items
10.6.3 Output Selection
The Analog Output can be driven by any channel’s track, peak or valley value.
See the “Channel Menu” section earlier in this chapter for a complete listing of
SETUP menu items available on the DAC. SETUP sub-menu.
Jumpers located on the channel’s circuit board determine what outputs are gener-
ated when the value selected to drive the Analog Output (from the DAC. CHANNEL and
DAC. SOURCE menu items) equals the DAC. FULL SCALE and DAC. ZERO SCALE settings.
Figure 10-3: Digital-to-Analog Output Jumper Locations
DAC. ZERO SCALE
DAC. FULL SCALE
J30
J31
Output
Output
jumper
jumper
CHANNELS WITH VOLTAGE OUPUT
0-5V
±5V
2.5 Volts
0 Volts
5 Volts
0 Volts
5 Volts
5 Volts
open
open
closed
open
0-10V
±10V
10 Volts
10 Volts
closed
closed
closed
open
CHANNELS WITH CURRENT OUTPUT
4-20mA
4-20mA
4 mA
20 mA
20 mA
open
open
open
12 mA
closed
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10.7 Troubleshooting
10.7.1 Error Messages
10.7.2 Common Problems
and Solutions
Erratic Display
Check electrical connections for continuity and the transducer’s wiring code from
its Certificate of Calibration.
Make sure that the load on the transducer is constant.
Check millivolt input to the (+)Signal (“+SIG”) and (-)Signal (“-SIG”) pins with a
voltmeter.
+OVLD or -OVLD on Display
Indicates that the voltage across the (+)Signal (“+SIG”) and (-)Signal (“-SIG”) pins
is overranging or underranging the amplifier circuit. Make certain all wires are
connected properly.
If you remove all load from the transducer and you still see this message, the
(+)Excitation (“+EXC”) or (-)Excitation (“-EXC”) pins may be shorted to the (+)Sig-
nal (“+SIG”) or (-)Signal (“-SIG”) pins.
If you remove all load from the transducer and you get a numeric reading, the
transducer may have a high zero offset. Use the channel’s SETUP menu and set
DIAGNOSTICS -> DISPLAY ADC to “ON”; in the RUN mode this will allow the [VALUE] but-
ton to display raw A/D readings as a percentage of its full-scale. If the raw A/D
readings display more than +/-10% when there is no load on the transducer, the
transducer has a high zero offset.
Analog Output Incorrect
Make certain of the type of Analog Output (voltage or current) that the channel is
equipped with; see “Identifying the Output Type” on page 76.
Use the DIAGNOSTICS-> DAC FULL SCALEand DIAGNOSTICS -> DAC ZERO SCALE menu items to
force the Analog Output to a known output. Then, adjust your readout device,
panel meter, PLC or data acquisition system to match.
“APPLY 00000” on Power-up
The channel has detected that the transducer connected to the instrument is dif-
ferent than the one the channel was last calibrated with. Because the CALIBRATION
TYPE is set to either Shunt Calibration or mV/V Calibration, the instrument is
prompting you to apply zero load in order to auto-calibrate to this new transducer.
Do one of the following, depending on the situation:
•
•
Re-connect the original transducer to the channel and re-start the instrument.
Press [ENTER] to re-calibrate the channel to this new transducer using Shunt
or mV/V Calibration and accept the presently applied load as “0”. (In situa-
tions where one can’t apply “0” load to an absolute pressure transducer or a
load cell with a pre-load, you can change the CALIBRATION DATA -> ZERO-SCALE
VALUE menu item from “0” to a load that can be applied. For example, 14.7
PSIA or the known pre-load on the load cell.
•
Use the CALIBRATE menu item to perform a Known-Load Calibration with this
new transducer.
Auxiliary Function Pins Not
Operating
Make sure that the AUX1 FUNCTION or AUX2 FUNCTION SETUP menu items are set cor-
rectly; if they are set to DISABLED then they will not operate.
The Auxiliary Function (“AUX1” and “AUX2”) pins must be connected to pin 10,
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not pin 8, to activate them.
Sensitivity to EMI/RFI
To obtain maximum immunity to electromagnetic or radio frequency interference,
make certain that the shields of the transducer cables are connected to the “cable
Shunt Calibration Feature not
Operating
To activate the channel’s shunt calibration function while the instrument is in RUN
the shunt cal feature.
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Chapter 11
AC/AC-LVDT Input Channel
11.1 Features
The AC/AC-LVDT Input channel provides an AC excitation voltage to and accepts
AC signals from LVDT (Linear Variable Differential Transformer) transducers.
These signals are digitized, converted into engineering units, and placed into the
track, peak and valley data values of the channel. Setup and calibration of the
channel are made manually through the SETUP mode.
The analog-to-digital converter features adjustable digital, low-pass filtering, 12- to
18-bit resolution (depending on the filter setting) and has several different input
ranges. These many input ranges allow ±25,000 count resolution (at the slowest
filter setting) for a wide variety of LVDT outputs.
The AC/AC-LVDT Input channel is calibrated to the transducer by using known-
displacement calibration.
Two rear panel control inputs can be field-configured for such functions as remote
tare, disabling peak/valley detection and clearing the peak/valley values. A stan-
dard voltage or optional current digital-to-analog output is also provided.
NOTICE
To use a DC/DC LVDT with an SC instrument, use a High-Level Input channel
instead of an AC/AC-LVDT Input channel.
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11.2 Wiring
Connect your transducer to an AC/AC-LVDT Input channel by wiring it to the 12-pin
connector of that channel. The Customer Information Sheet that shipped with the
instrument describes which cards are installed in each channel. The pin-out for this
connector is shown on the following table.
Table 5-5: AC/AC-LVDT Input Channel Pin Connections
Pin
Label
Function
Reference Pin
1 (top)
+EXC
N/C
(+)Excitation
No connection
No connection
(-)Excitation
(+)Signal
10
2
3
N/C
4
-EXC
+SIG
-SIG
10
10
10
8
5
6
(-)Signal
7
+OUT
-OUT
N/C
Analog Output
Analog Return
No connection
Digital Ground
8
-
9
10
11
DGND
AUX1
-
Auxiliary Function 1
(connect to pin 10 to activate)
10
12
(bottom)
AUX2
Auxiliary Function 2
(connect to pin 10 to activate)
10
The Analog Output and Analog Return pins are electrically isolated from all other pins
on the instrument.
Figure 11-1: Connection of Four- or Five-wire AC/AC-LVDT
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11.3 Calibration Procedure
If you are not familiar with operating the instrument in the SETUP menu mode,
Step 1: Wire the transducer to the channel’s connector.
Step 2: Enter the CALIBRATION TYPE.
You must have the capability to apply either two, three, or five known dis-
placements to the transducer. The CALIBRATION TYPE menu item allows you to
specify how many known displacements will be applied during calibration.
Step 3: Enter the CALIBRATION DATA.
Consult the Certificate of Calibration for the transducer when entering infor-
mation in the CALIBRATION DATA sub-menu.
Step 4: Determine the LVDT’s electrical null point, then physically mount it.
The electrical null is the armature position that produces the least electrical
output. Once this point has been determined, the transducer is physically
Step 5: Perform the calibration.
Using the CALIBRATE menu item starts the calibration process. You will be
prompted to apply displacements to the transducer as required.
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11.4 Specifications
TRANSDUCER INPUT
Transducer type
full-bridge, AC/AC-LVDT
Excitation Voltage
3 VRMS @ 5kHz,
short circuit protected
Transducer full-scale output
Amplifier Gain Selection
Calibration Type
.1 to 15 VRMS @ 3 VRMS excitation
automatic
2-, 3- or 5- point known displacement
24-bit Sigma-Delta
A/D Converter
Low-pass filter
digital, 24-tap FIR
Resolution
Frequency Response
see page 83
AUXILLIARY INPUTS
Quantity
2
Type
momentary contact closure
< 5ms
Response Time
Field-Selectable Functions
tare on, tare off,
peak/valley clear, peak/valley hold,
track hold
ANALOG OUTPUT
Voltage range (voltage output
channels)
5, ±5, 10 or ±10 VDC
4-20 mA
Current range (current output
channels)
Source
Isolation
any channel’s track, peak or valley value
500V
Resolution
13 bits
Frequency Response same as input if driven by the same chan-
nel’s tracking data
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11.5 Channel Menu
Each AC/AC-LVDT Input channel is configured and calibrated via its channel
menu. Detailed instructions on operating the instrument in the SETUP Menu
is located in “Setup Menu Reference” on page 157.
11.5.1 OPERATION
Sub-Menu
This menu controls the operation of this channel when the instrument is in the
RUN mode.
AUTO-ZEROMenu Item
This enables or disables the channel’s automatic zeroing function. When
enabled, the channel will reset its tracking value to zero when the tracking value is
less than 10 display counts for a period of 10 seconds. This removes the effect of
slight temperature shifts in the transducer’s output.
NOTICE
To compensate for the transducer’s initial warm-up shift, the auto-zero function
operates every 2 seconds during the first 60 seconds of RUN mode operation.
The two options for this menu item are “ON” and “OFF”.
FREQ. RESPONSEMenu Item
This sets the frequency response, step response, and resolution of the channel
according to the table below. The tracking value, peak/valley detector values and
analog output on this channel are all affected. The default value of 016. HERTZ is
suitable for most applications.
Resolution (counts) (not
including minimum 10%
overrange/underrange capability)
Frequency
Response
Step Response
(ms) (typical)
002. HERTZ/FAST
002. HERTZ
008. HERTZ
016. HERTZ
032. HERTZ
050. HERTZ
100. HERTZ
250. HERTZ
500. HERTZ
800. HERTZ
40
440
110
55
28
16
8
±25000
±25000
±15000
±10000
±10000
±5000
±5000
3
±2000
2
±2000
2
±2000
NOTICE
Your particular LVDT may have a lower frequency response than the AC-AC
LVDT Input channel.
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POWER-ON SOURCE Menu Item
This menu selects which value is displayed by the channel when first entering the
RUN mode.
The choices are:
•
•
•
•
“TRACK” means the live tracking value of the channel.
“PEAK” means the highest value of the channel.
“VALLEY” means the lowest value of the channel.
“TRACK / PEAK” means the live tracking value and the highest value of the channel.
(Only available on Model SC3004).
•
•
“TRACK / VALLEY” means the live tracking value and the lowest value of the channel.
(Only available on Model SC3004).
“PEAK / VALLEY” means the highest and lowest values of the channel.
(Only available on Model SC3004).
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11.5.2 DISPLAY SETUP
Sub-Menu
This menu controls how data values are displayed by the channel and transmitted
via serial communications.
DISPLAY. DIGITSMenu Item
Selects the number of digits displayed by the channel. The choices are:
•
•
•
“5 DIGIT-BIPOLAR” displays both positive and negative numbers with five full dig-
its (±99999).
“6 DIGIT-UNIPLOAR” displays positive numbers with six full digits (999999) and
negative numbers with five full digits (-99999).
“7 DIGIT UNIPOLAR” displays positive number with seven full digits (9999999)
and negative numbers with six digits (-999999).
DISPLAY. DECPTMenu Item
Selects the decimal point location on the channel’s display and serial communica-
tions output. Use the [UP] and [DOWN] buttons to move the decimal point to the
right and left.
DISPLAY. COUNT-BYMenu Item
Determines by what value the display increments or decrements. This will make
the display less sensitive to a noisy signal. The choices are:
•
•
•
•
•
•
•
•
“00001”
“00002”
“00005”
“00010”
“00020”
“00050”
“00100”
“00200”
DISPLAY. UNITSMenu Item
Specifies the four character label that is displayed to the right of the channel’s val-
ues.
NOTICE
This menu item doesn’t change the mathematical scaling of the channel’s val-
ues; that can be changed by altering the “CALIBRATION DATA -> KNOWN POINT X/Y”
menu items and then performing a re-calibration.
When a character position is flashing press the [UP] or [DOWN] button to change
the character. Press [ENTER] to advance to the next character.
DISPLAY. AVERAGEMenu Item
Controls the speed with which the channel’s display values will update. Display
averaging does not affect the channel’s analog output or its peak/valley detection,
which will proceed at the speed selected by the ”OPERATION -> FREQ. RESPONSE” menu
item. The choices are:
•
“ON” means that the display will update four times each second. The channel’s
values will be averaged for 1/4 second, then displayed.
•
“OFF” means that the channel’s display will update as quickly as possible.
11.5.3AUXnFUNCTIONMenu
Items
The AUX1 FUNCTION and AUX2 FUNCTION menu items determine what happens when the
Auxiliary Function pins (labeled as “AUX1” and “AUX2”) on the channel’s connec-
tor are activated. These pins are “activated” when they are connected to the
DGND pin. The choices are:
•
•
“DISABLED” means that activating the pin does nothing.
“TRACK HOLD” means that the tracking, peak and valley values will not be
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updated.
•
•
•
•
“HIGH/LOW HOLD” means that the peak and valley values will not be updated.
“HIGH/LOW CLEAR” means that the peak and valley values are reset.
“TARE ON” activates the channel’s Tare function (resets it to zero).
“TARE OFF” deactivates the channel’s Tare function.
As the Auxiliary Function pins are not isolated, it is recommended that a push-button
switch or relay is used to connect these pins to the DGND pin.
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11.5.4 CALIBRATION TYPE
The choices for this menu item are:
Menu Item
•
“TYPE= 2 POINT CAL” means 2-Point Known Displacement Calibration. You are
prompted to apply the displacements to the transducer that were entered in
the “KNOWN POINT 1/2” and “KNOWN POINT 2/2” registers. This technique assumes
that the transducer is linear throughout the entire stroke, so the usual dis-
placements used are zero scale and full scale.
•
“TYPE= 3 POINT CAL” means 3-Point Known Displacement Calibration. You are
prompted to apply the displacements to the transducer that were entered in
the “KNOWN POINT 1/3” and “KNOWN POINT 2/3” and “KNOWN POINT 3/3” registers. This
technique can be used to compensate for the different sensitivities that an
LVDT may have on each side of its electrical null. The usual displacements
used are zero scale, half scale and full scale, but you are not restricted to
these displacements.
•
“TYPE= 5 POINT CAL” means 5-Point Known Displacement Calibration. You are
prompted to apply the displacements to the transducer that were entered in
the “KNOWN POINT 1/5”, “KNOWN POINT 2/5”, “KNOWN POINT 3/5”, “KNOWN POINT 4/5” and
“KNOWN POINT 5/5” registers. This technique can be used to compensate for the
non-linearity in the transducer as well as the different sensitivities on each
side of its electrical null. The usual displacements used are zero scale, one-
quarter scale, half scale, three-quarters scale and full scale, but you are not
restricted to these displacements.
The selection of the calibration type affects what menu items appear in the CALI-
BRATION DATA sub-menu.
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11.5.5 CALIBRATION
DATASub-Menu
This sub-menu enters the values that will be used by the instrument when it calibrates
itself to the transducer. The menu items that are displayed will change according to
what the CALIBRATION TYPE is set for.
FULL SCALE VRMSMenu Item
The transducer output when its full-scale displacement is applied to it, in Volts RMS
(root-mean-squared) assuming 3 VRMS excitation. This menu item is used by the
instrument to set gain of its amplifier circuit. This value is normally found on the trans-
ducer’s Certificate of Calibration issued by its manufacturer.
KNOWN POINT x/yMenu Items
This enters the engineering units for the known-displacement calibration points.
These points must match the actually displacements that you will apply to the trans-
ducer during calibration. The number of calibrations points depends on the CALIBRATION
TYPE.
When using the 2-Point Known Displacement Calibration type, the following menu
items are available:
•
•
“KNOWN POINT 1/2”: point 1 of 2, usually 0% of the transducer’s full-scale capacity.
“KNOWN POINT 2/2”: point 2 of 2, usually 100% of the transducer’s full-scale capacity.
When using the 3-Point Known Displacement Calibration type, the following menu
items are available:
•
•
•
“KNOWN POINT 1/3”: point 1 of 3, usually 0% of the transducer’s full-scale capacity.
“KNOWN POINT 2/3”: point 2 of 3, usually 50% of the transducer’s full-scale capacity.
“KNOWN POINT 3/3”: point 3 of 3, usually 100% of the transducer’s full-scale capacity.
When using the 5-Point Known Displacement Calibration type, the following menu
items are available:
•
•
•
•
•
“KNOWN POINT 1/5”: point 1 of 5, usually 0% of the transducer’s full-scale capacity.
“KNOWN POINT 2/5”: point 2 of 5, usually 25% of the transducer’s full-scale capacity.
“KNOWN POINT 3/5”: point 3 of 5, usually 50% of the transducer’s full-scale capacity.
“KNOWN POINT 4/5”: point 4 of 5, usually 75% of the transducer’s full-scale capacity.
“KNOWN POINT 5/5”: point 5 of 5, usually 100% of the transducer’s full-scale capacity.
NOTICE
To insure both correct operation of the transducer and application of the dis-
placement, the instrument expects the voltage applied at each known-displace-
ment point to be increasing. For example, the displacement applied at Known-
Displacement Point 2/2 must cause the transducer to produce a more positive
voltage than at Known-Displacement Point 1/2. You may need to swap the
(+)Signal and (-)Signal wires on the 12-pin channel connector to accomplish
this.
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11.5.6 CALIBRATEMenu
Item
This menu item performs a calibration according to what was entered in the CALI-
BRATION TYPE and CALIBRATION DATA menu items.
NOTICE
Before performing a calibration,
the transducer must be connected to the instrument, the CALIBRATION TYPE must
NOTICE
For maximum accuracy, allow at least twenty minutes of warm-up with the exci-
tation voltage applied to the transducer before calibration.
If the CALIBRATION TYPE is 2-Point Known Displacement Calibration...
•
The display will read DOING 2POINT CAL, and prompt you to APPLY 00000 UNIT
(where 00000 and UNIT are previously entered as KNOWN POINT 1/2and DISPLAY.
UNITS). When you have applied this displacement to the transducer, press
[ENTER].
•
•
The display will read WORKING, then APPLY 01000 UNIT(where 01000 and UNIT are
previously entered as KNOWN POINT 2/2 and DISPLAY. UNITS). When you have
applied this displacement to the transducer, press [ENTER].
Upon completion, the display will indicate DONEand the instrument will return to
the RUN mode.
If the CALIBRATION TYPE is 3-Point Known Displacement Calibration...
•
The display will read DOING 3POINT CAL, and prompt you to APPLY 00000 UNIT
(where 00000 and UNIT are previously entered as KNOWN POINT 1/3and DISPLAY.
UNITS). When you have applied this displacement to the transducer, press
[ENTER].
•
•
•
The display will read WORKING, then APPLY 00500 UNIT(where 00500 and UNIT are
previously entered as KNOWN POINT 2/3 and DISPLAY. UNITS). When you have
applied this displacement to the transducer, press [ENTER].
The display will read WORKING, then APPLY 01000 UNIT(where 01000 and UNIT are
previously entered as KNOWN POINT 2/3 and DISPLAY. UNITS). When you have
applied this displacement to the transducer, press [ENTER].
Upon completion, the display will indicate DONEand the instrument will return to
the RUN mode.
If the CALIBRATION TYPE is 5-Point Known Displacement Calibration...
•
The display will read DOING 5POINT CAL, and prompt you to APPLY 00000 UNIT
(where 00000 and UNIT are previously entered as KNOWN POINT 1/5and DISPLAY.
UNITS). When you have applied this displacement to the transducer, press
[ENTER].
•
•
The display will read WORKING, then APPLY 00250 UNIT(where 00250 and UNIT are
previously entered as KNOWN POINT 2/5 and DISPLAY. UNITS). When you have
applied this displacement to the transducer, press [ENTER].
The display will read WORKING, then APPLY 00500 UNIT(where 00500 and UNIT are
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previously entered as KNOWN POINT 3/5 and DISPLAY. UNITS). When you have applied
this displacement to the transducer, press [ENTER].
•
•
•
The display will read WORKING, then APPLY 00750 UNIT (where 00750 and UNIT are pre-
viously entered as KNOWN POINT 4/5 and DISPLAY. UNITS). When you have applied this
displacement to the transducer, press [ENTER].
The display will read WORKING, then APPLY 01000 UNIT (where 01000 and UNIT are pre-
viously entered as KNOWN POINT 5/5 and DISPLAY. UNITS). When you have applied this
displacement to the transducer, press [ENTER].
Upon completion, the display will indicate DONE and the instrument will return to the
RUN mode.
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11.5.7 DAC SETUPSub-Menu
This sub-menu contains four items that control the Digital-to-Analog (DAC) output
of the channel.
DAC. CHANNELMenu Item
This chooses which channel will drive the DAC output. Normally, the DAC located
on a particular channel will be driven by that channel, but that need not be the
case. For example, if several channels were assigned to various transducers in a
system, the sum of all channels could (mathematically) drive one channel’s DAC
output.
If the DAC is set-up to be driven by its own channel’s tracking value, the Analog
Output will have the frequency response specified by the channel’s FREQ. RESPONSE
menu item. Otherwise, the Analog Output will operate more slowly.
DAC. SOURCE Menu Item
This designates the data source of the channel monitored by the analog output.
Each channel has three data sources: the live tracking value (TRACK), its highest
value (PEAK), and its lowest value (VALLEY).
The options for this menu item are:
•
•
“TRACK” means the live tracking value of the channel.
“PEAK” means the highest value of the channel since the peak/valley detector
was last cleared.
•
“VALLEY” means the lowest value of the channel since the peak/valley detector
was last cleared.
If the DAC is set-up to be driven by its own channel’s tracking value, the Analog
Output will have the frequency response specified by the channel’s FREQ. RESPONSE
menu item. Otherwise, the Analog Output will operate more slowly.
DAC. ZERO-SCALEMenu Item
This specifies what value, in engineering units, corresponds to zero output on the
Analog Output.
“Zero output” might be 0 Volts, 2.5 Volts, 5 Volts, 4 mA or 12 mA depending on if
Output Configuration” on page 94 for details.
DAC. FULL-SCALEMenu Item
This specifies what value, in engineering units, corresponds to full output on the
Analog Output.
“Full output” might be 5 Volts, 10 Volts or 20 mA depending on if the channel has
ration” on page 94 for details.
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11.5.8 DIAGNOSTICS
Sub-Menu
DAC FULL SCALEMenu Item
When this menu item is selected, the Analog Output of the channel is forced to its full-
scale output, then DAC UPDATED is displayed. This is useful when calibrating or trimming
the readout connected to the Analog Output.
DAC ZERO SCALEMenu Item
When this menu item is selected, the Analog Output of the channel is forced to its
zero-scale output, then DAC UPDATEDis displayed. This is useful when calibrating or trim-
ming the readout connected to the Analog Output.
VERSION INFOMenu Item
DISPLAY ADCMenu Item
This menu item displays the part number and revision level of the firmware used by
this channels microprocessor.
The options for this menu item are:
•
“OFF” will allow the [VALUE] button to cycle through “TK” (tracking value), “HI” (peak
value) and “LO” (valley value). This is the recommended option.
“ON” will allow the “AD” (percentage of the Analog-to-Digital converter’s full-scale
digitizing capability) display source to be available along with “TK” (tracking value),
“HI” (peak value) and “LO” (valley value) when the [VALUE] button is pressed on
the front panel.
•
The Analog-to-Digital converter counts are displayed as a percentage from -100.00%
to 100.00%.
This can be used to establish the transducer’s electrical null prior to mounting. See
“Electrical Null and Transducer Mounting” on page 93 for this procedure.
LINEARIZATION Menu Item
The options for this menu item are:
•
“ON” will allow linearization data obtained from a 3-Point or 5-Point Known Dis-
placement Calibration to affect a channel’s scaled values. This is the recom-
mended option.
•
“OFF” will not allow linearization data to effect the channel’s scaled values.
DISABLE CHANNEL Menu Item
The options for this menu item are:
•
“ON” will bypass the INITIALIZE and RUN modes of the channel. The track, peak
and valley values of the channel are forced to 0.
•
“OFF” will allow normal operation of the channel.
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11.6 Electrical Null and Transducer Mounting
11.6.1 Overview
The mechanical travel of an LVDT transducer is not the same as its usable mea-
suring range. All LVDTs exhibit some non-linearity near the ends of its armature’s
mechanical travel. To insure that the LVDT will be used in its linear measuring
range, its electrical null point must be determined. This electrical null point is the
armature position which produces the minimal electrical signal output. After elec-
trical null has been established, the LVDT is clamped down into final position in its
mounting fixture.
As long as the LVDT remains clamped in this position, you do not need to re-
establish the electrical null prior to every calibration.
11.6.2 Procedure
Step 1: Use the channel’s SETUP menu and set DIAGNOSTICS -> DISPLAY ADC to “ON”.
Exit the SETUP menu and re-start the instrument.
Step 2: Display the channel to which the LVDT is connected. Press and release
the [VALUE] button until the “AD” display source is shown. This is the raw
analog-to-digital converter readings displayed as a percentage of its full-
scale (-100% to +100%).
Step 3: Move the LVDT’s armature to the position which displays the lowest value
of raw analog-to-digital converter readings (i.e. a number close to 00.000%.
This is the LVDT’s electrical null.
Step 4: Firmly clamp down the LVDT’s body.
Step 5: Move the LVDT’s armature to roughly the position you wish to define as
“positive full scale”. If the displayed analog-to-digital converter reading is a
negative value, you must swap the wires connected to the (+)Signal and
(-)Signal pins (labeled as “+SIG” and “-SIG”) on the channel’s 12-pin con-
nector to make the reading positive.
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11.7 Analog Output Configuration
11.7.1 Identifying the
Output Type
An AC/AC-LVDT Input channel is available with one of two types of digital-to-analog
(DAC) outputs: voltage or current. You can determine which type of output a channel
has by one of three ways:
•
•
Consulting the instrument’s Customer Information Sheet
Examining the SYSTEM MENU-> CONFIGURATION-> CHANNELnn TYPEmenu item where nn is
the number of the channel. If the channel’s type is AC-AC LVDT V, it has a voltage
output. If the channel’s type is AC-AC LVDT I, it has a current output.
Examining the channel’s circuit board as shown in the figure below.
•
11.7.2 Channel Menu
Items
The Analog Output can be driven by any channel’s track, peak or valley value.
See the “Channel Menu” section earlier in this chapter for a complete listing of SETUP
menu items available on the DAC. SETUP sub-menu.
11.7.3 Output Selection
Jumpers located on the channel’s circuit board determine what outputs are generated
when the value selected to drive the Analog Output (from the DAC. CHANNEL and DAC.
SOURCE menu items) equals the DAC. FULL SCALE and DAC. ZERO SCALE settings.
Figure 11-2: Digital-to-Analog Output Jumper Locations
DAC. ZERO SCALE
DAC. FULL SCALE
J30
J31
Output
Output
jumper
jumper
CHANNELS WITH VOLTAGE OUPUT
0-5V
±5V
2.5 Volts
0 Volts
5 Volts
0 Volts
5 Volts
5 Volts
open
open
closed
open
0-10V
±10V
10 Volts
10 Volts
closed
closed
closed
open
CHANNELS WITH CURRENT OUTPUT
4-20mA
4-20mA
4 mA
20 mA
20 mA
open
open
open
12 mA
closed
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11.8 Troubleshooting
11.8.1 Error Messages
11.8.2 Common
Problems and Solutions
Erratic Display
Check electrical connections for continuity and the transducer’s wiring code from its
Certificate of Calibration.
Make sure that the displacement on the transducer is constant.
Check the input to the (+)Signal (“+SIG”) and (-)Signal (“-SIG”) pins with an RMS volt-
meter in its “AC Voltage” mode. Using a voltmeter in its DC Voltage mode will always
display 0.
+OVLD or -OVLD on Display
Indicates that the voltage across the (+)Signal (“+SIG”) and (-)Signal (“-SIG”) pins is
overranging or underranging the amplifier circuit. Make certain all wires are con-
nected properly, the “CALIBRATION DATA-> FULL SCALE VRMS” menu item is set correctly, and
If you move the armature back to its electrical null point and you still see this mes-
sage, the (+)Excitation (“+EXC”) or (-)Excitation (“-EXC”) pins may be shorted to the
(+)Signal (“+SIG”) or (-)Signal (“-SIG”) pins.
Analog Output Incorrect
Make certain of the type of Analog Output (voltage or current) that the channel is
equipped with; see “Identifying the Output Type” on page 94.
Use the DIAGNOSTICS -> DAC FULL SCALE and DIAGNOSTICS -> DAC ZERO SCALE menu items to
force the Analog Output to a known output. Then, adjust your readout device, panel
meter, PLC or data acquisition system to match.
Auxiliary Function Pins Not
Operating
Make sure that the AUX1 FUNCTION or AUX2 FUNCTION SETUP menu items are set correctly;
if they are set to DISABLED then they will not operate.
The Auxiliary Function (“AUX1” and “AUX2”) pins must be connected to pin 10, not pin
8, to activate them.
Sensitivity to EMI/RFI
To obtain maximum immunity to electromagnetic or radio frequency interference,
make certain that the shields of the transducer cables are connected to the “cable
Non-linearity at the end of
the LVDT’smechanical range
Most LVDTs have a usable measuring range that is smaller than their mechanical
establishing the LVDT’s electrical null point to insure that the LVDT will be operated in
its usable measuring range.
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Chapter 12
High-Level Input Channel
12.1 Features
The High-Level Input channel provides a DC supply voltage to and accepts volt-
age or current signals from amplified transducers such as pressure transducers,
load cells and DC-DC LVDTs. These signals are digitized, converted into engi-
neering units, and placed into the track, peak and valley data values of the chan-
nel. Setup and calibration of the channel is made manually through the SETUP
menu mode. Signature Calibration is not available with amplified transducers.
The analog-to-digital converter input circuit features adjustable digital, low-pass
filtering, 12- to 18-bit resolution (depending on the filter setting) and has several
different input ranges. These many ranges allow ±50,000 count resolution (at the
slowest filter setting) across a wide variety of input ranges.
A combination of SETUP menu items and hardware jumpers are used to config-
ure the excitation supply output voltage (+28 VDC, ±15 VDC, +15 VDC or +12
VDC), the input type (voltage or current) and input reference (differential or single
ended).
Two methods of calibrating the High-Level Input channel to the transducer are
available: known-load calibration and shunt calibration. The benefits of each are
Two rear panel control inputs can be field-configured for such functions as remote
tare, disabling peak/valley detection and clearing the peak/valley values. A volt-
age or current digital-to-analog output is also provided.
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12.2 Wiring
12.2.1 Channel
Connector
Connect the amplified transducer, in-line amplifier or DC-DC LVDT to a High-Level
Input channel by wiring it to the 12-pin connector of that channel. The Customer Infor-
mation Sheet that shipped with the instrument describes which cards are installed in
each channel. The pin-out for this connector is shown on the following table.
Table 1-6: High-Level Input Channel Pin Connections
Pin
Label
Function
Reference Pin
1 (top)
+EXC
SHUNT1
-SHUNT2
-EXC
(+)Excitation
Shunt Cal Relay
Shunt Cal Relay
(-)Excitation
10
3
2
3
2
4
10
10
10
8
5
+SIG
(+)Signal
6
-SIG
(-)Signal
7
+OUT
-OUT
Analog Output
Analog Return
No Connection
Digital Ground
8
-
9
N/C
-
10
11
DGND
AUX1
-
Auxiliary Function 1
(connect to pin 10 to activate)
10
12
(bottom)
AUX2
Auxiliary Function 2
(connect to pin 10 to activate)
10
The Analog Output and Analog Return pins are electrically isolated from all other pins
on the instrument.
CAUTION
Identify the amplified transducer or in-line amplifier according to the Option
Code or model name as shown on its serial number tag. Use this information
to select the correct wiring diagram on the following pages. Incorrect wiring can
damage both the transducer and the instrument.
Failure to comply with these instructions may result in product damage.
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12.2.2 Bi-polar Voltage
Amplifiers
Use the following wiring diagram when connecting an amplified transducer, in-line
amplifier or DC-DC LVDT with a bi-polar voltage amplifier to a High-Level Input
channel. Examples of such devices include
•
•
•
transducers with Option 2a or Option 2b internal amplifiers (with shunt cal)
Models UBP or UBP-10 Universal In-Line amplifiers (with shunt cal)
Models JEC (replaces model MDL), JEC-AG (replaces model DLA), JEC-C
(replaces model MDLC), DW7U, DW7C and DW7S DC-DC LVDTs (no shunt
cal)
NOTICE
DLB, DLE and DLF low-voltage DC-DC LVDTs.
The High-Level Input channel’s Configuration Jumpers must be set as follows for
proper operation. See “Excitation and Signal Jumpers” on page 106.
•
•
•
•
.
(+)Excitation supply: “+15 VDC”
(-)Excitation supply: “-15 VDC”
Signal type: “voltage”
Signal reference: “single ended”
Figure 12-1: “Bi-polar Voltage Amp” Connection to High-Level Input Channel
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12.2.3 “3-wire
Voltage” Amplifiers
Use the following wiring diagram when connecting an amplified transducer or in-line
amplifier with a 3-wire voltage amplifier to a High-Level Input channel. Examples of
such devices include
•
•
transducers with Option 2c or Option 2t internal amplifiers (with shunt cal)
Models UV or UV-10 Universal In-Line amplifiers (with shunt cal)
The High-Level Input channel’s Configuration Jumpers must be set as follows for
proper operation. See “Excitation and Signal Jumpers” on page 106.
•
•
•
•
(+)Excitation supply: “+28 VDC”
(-)Excitation supply: “GND”
Signal type: “voltage”
Signal reference: “differential”
Figure 12-2: “3-wire Voltage Amp” Connection to High-Level Input Channel
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12.2.4 “3-wire Voltage”
Amplifiers with Single-wire
Shunt Cal
Use the following wiring diagram when connecting an amplified transducer with a
3-wire voltage amplifier with single-wire shunt calibration to a High-Level Input
channel. An example of a such device includes
•
transducers with Option 2d or Option 2g internal amplifiers (with shunt cal)
The High-Level Input channel’s Configuration Jumpers must be set as follows for
proper operation. See “Excitation and Signal Jumpers” on page 106.
•
•
•
•
(+)Excitation supply: “+28 VDC”
(-)Excitation supply: “GND”
Signal type: “voltage”
Signal reference: “differential”
Figure 12-3: “3-wire Voltage Amp w/Single-Wire Shunt Cal” Connection to High-Level Input
Channel
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12.2.5“3-wireCurrent”
Amplifiers
Use the following wiring diagram when connecting an amplified transducer or in-line
amplifier with a 3-wire current amplifier to a High-Level Input channel. Examples of
such devices include
•
•
transducers with the Option 2j internal amplifier (with shunt cal)
Model U3W Universal In-Line amplifiers (with shunt cal)
The High-Level Input channel’s Configuration Jumpers must be set as follows for
proper operation. See “Excitation and Signal Jumpers” on page 106.
•
•
•
•
(+)Excitation supply: “+28 VDC”
(-)Excitation supply: “GND”
Signal type: “current”
Signal reference: “single ended”
Figure 12-4: “3-wire Current Amp” Connection to High-Level Input Channel
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12.2.6 “2-wire Current”
Amplifiers with Buffered
Shunt Cal
Use the following wiring diagram when connecting an amplified transducer or in-
line amplifier with a 2-wire current amplifier to a High-Level Input channel. Exam-
ples of such devices include
•
•
•
transducers with the Option 2k internal amplifier (not equipped with shunt cal)
transducers with the Option 2k,3d internal amplifier (buffered shunt cal)
Model U2W Universal In-Line amplifiers (not equipped with shunt cal)
The High-Level Input channel’s Configuration Jumpers must be set as follows for
proper operation. See “Excitation and Signal Jumpers” on page 106.
•
•
•
•
(+)Excitation supply: “+28 VDC”
(-)Excitation supply: “GND”
Signal type: “current”
Signal reference: “single ended”
Figure 12-5: “2-wire Current Amp w/Buffered Shunt Cal” Connection to High-Level Input
Channel
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12.2.7“2-wireCurrent”
Amplifiers with Single-
wire Shunt Cal
Use the following wiring diagram when connecting an amplified transducer or in-line
amplifier with a 2-wire current amplifier to a High-Level Input channel. Examples of
such devices include
•
•
•
•
transducers with the Option 2p internal amplifier (not equipped with shunt cal)
transducers with the Option 2p,3d internal amplifier (single-wire shunt cal)
transducers with the Option 2y internal amplifier (not equipped with shunt cal)
transducers with the Option 2y,3d internal amplifier (single-wire shunt cal)
The High-Level Input channel’s Configuration Jumpers must be set as follows for
proper operation. See “Excitation and Signal Jumpers” on page 106.
•
•
•
•
(+)Excitation supply: “+28 VDC”
(-)Excitation supply: “GND”
Signal type: “current”
Signal reference: “single ended”
Figure 12-6: “2-wire Current Amp w/Single-Wire Shunt Cal” Connection to High-Level Input Chan-
nel
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12.2.8 Low Voltage DC-DC
LVDTs
Use the following wiring diagram when connecting a low-voltage DC-DC LVDT to
a High-Level Input channel. Examples of such devices include
•
Models DLB, DLE and DLF DC-DC LVDTs
The High-Level Input channel’s Configuration Jumpers must be set as follows for
proper operation. See “Excitation and Signal Jumpers” on page 106.
•
•
•
•
(+)Excitation supply: “+12 VDC”
(-)Excitation supply: “GND”
Signal type: “voltage”
Signal reference: “single ended”
Figure 12-7: “Low Voltage” DC-DC LVDT Connection to High-Level Input Channel
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12.3 Excitation and Signal Jumpers
12.3.1 Overview
The High-Level Input channel has hardware jumpers which allows configuration of
excitation supply voltages and signal inputs to match the wide variety of amplified
pressure, load and DC-DC LVDT transducers.
CAUTION
“Wiring” on page 98 explains which jumpers settings are required for a particu-
lar transducer type. Incorrect placement of the Excitation and Signal jumpers
can damage both the transducer and the instrument.
Failure to comply with these instructions may result in product damage.
12.3.2 Setting Jumpers
Step 1: Find the “Case Removal” section in Chapter 4 “Chassis Models” on page 25
that matches the particular chassis model. Follow the directions and remove
the rear panel.
Step 2: Remove the channel board from the chassis.
Step 3: Change the jumper settings according to the figure below.
Step 4: Re-install the channel board and replace the rear panel.
Figure 12-8: Excitation and Signal Jumper Locations on the High-Level Input Channel
CAUTION
There are two separate jumpers for the “signal type” whose settings must
match.
Failure to comply with these instructions may result in product damage.
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12.4 Calibration Procedure
If you are not familiar with operating the instrument in the SETUP menu mode,
Step 1: Wire the transducer to the channel’s connector.
Step 2: Set the Excitation and Signal jumpers appropriate for the transducer,
amplifier or DC-DC LVDT.
Step 3: Enter the CALIBRATION TYPE.
There are two methods that can be used to calibrate the transducer to the
Input Channel. Each has advantages and disadvantages as described in
application in order to select the appropriate calibration type.
Step 4: Enter the CALIBRATION DATA.
Otherwise, consult the Certificate of Calibration for the transducer when
entering information in the CALIBRATION DATA sub-menu.
Step 5: Perform the calibration.
Using the CALIBRATE menu item starts the calibration process. You will be
prompted to apply loads to the transducer as required.
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12.5 Specifications
TRANSDUCER INPUT
Transducer types
amplified with voltage or current output,
(field selectable)
(1)
±15 VDC @ 40 mA max.
+28 VDC @ 75 mA max.
+12 VDC @ 40 mA max.
(field selectable)
Excitation Voltage
Excitation Overcurrent Protection
Transducer full-scale output
yes
±1, ±5, ±10 VDC
4-20 mA (field selectable)
Calibration Type
shunt, or
2-, 3- or 5- point known load
A/D Converter
Low-pass filter
24-bit Sigma-Delta
digital, 24-tap FIR
Resolution and Frequency Response
INSTRUMENT-ONLY ACCURACY
(Frequency Response setting<=16Hz; Linearity, repeat-
ability & hysteresis)
Known -Load Calibration
±0.01% F.S.
AUXILLIARY INPUTS
Quantity
2
Type
momentary contact closure
< 5ms
Response Time
Field-Selectable Functions
tare on, tare off,
peak/valley clear, peak/valley hold,
track hold
ANALOG OUTPUT
Output voltage range
5, ±5, 10 or ±10 VDC (field selectable)
4-20 mA
Output current range (optional current
output channels)
Source
Isolation
any channel’s track, peak or valley value
500V
Resolution
13 bits
Frequency Response
same as input when driven by the same
channel’s tracking data
(1)
Total excitation current of all channels must not exceed 120mA for Models SC1000,
SC2000 or SC2001 and 310 mA for Model SC3004.
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12.6 Channel Menu
Each High-Level Input channel is configured and calibrated via its channel menu.
Detailed instructions on operating the instrument in the SETUP Menu mode can
12.6.1 OPERATION
Sub-Menu
This menu controls the operation of this channel when the instrument is in the
RUN mode.
AUTO-ZEROMenu Item
This enables or disables the channel’s automatic zeroing function. The auto-zero
function can remove the effect of slight temperature shifts in the transducer’s out-
put. The two options for this menu item are “ON” and “OFF”.
When enabled, the channel will reset its tracking value to zero when the tracking
value has never been more positive than +10 or more negative than -10 display
counts for any 10 second period.
For example, assume that the DISPLAY.DECPT menu item is set to 000.00 (two deci-
mal points). If the tracking value never leaves the range of -000.10 to +000.10 for
any 10 second period, then tracking value will reset to 000.00 automatically.
NOTICE
To compensate for the transducer’s initial warm-up shift, the auto-zero function
operates every 2 seconds during the first 60 seconds of RUN mode operation.
FREQ. RESPONSEMenu Item
This sets the frequency response, step response, and resolution of the channel
according to the table below. The tracking value, peak/valley detector values and
analog output on this channel are all affected. The default value of 016. HERTZ is
suitable for most applications.
Frequency
Response
Step Response
(ms) (typical)
Resolution (counts) (not including min.
10% overrange/underrange capability)
5V & 10V Inputs
±50000
±50000
±25000
±25000
±20000
±15000
±10000
±10000
±4000
1V & 4-20mA Inputs
±50000
±50000
±25000
±20000
±10000
±10000
±5000
002. HERTZ/FAST
002. HERTZ
008. HERTZ
016. HERTZ
032. HERTZ
050. HERTZ
100. HERTZ
250. HERTZ
500. HERTZ
800. HERTZ
40
440
110
55
28
16
8
3
±5000
2
±2500
2
±2500
±2500
POWER-ON SOURCE Menu Item
This menu selects which value is displayed by the channel when first entering the
RUN mode.
The choices are:
•
“TRACK” means the live tracking value of the channel.
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•
•
•
“PEAK” means the highest value of the channel.
“VALLEY” means the lowest value of the channel.
“TRACK / PEAK” means the live tracking value and the highest value of the channel.
(Only available on Model SC3004).
•
•
“TRACK / VALLEY” means the live tracking value and the lowest value of the channel.
(Only available on Model SC3004).
“PEAK / VALLEY” means the highest and lowest values of the channel.
(Only available on Model SC3004).
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12.6.2 DISPLAY SETUP
Sub-Menu
This menu controls how data values are displayed by the channel and transmitted
via serial communications.
DISPLAY. DIGITSMenu Item
Selects the number of digits displayed by the channel. The choices are:
•
•
•
“5 DIGIT-BIPOLAR” displays both positive and negative numbers with five full dig-
its (±99999).
“6 DIGIT-UNIPLOAR” displays positive numbers with six full digits (999999) and
negative numbers with five full digits (-99999).
“7 DIGIT UNIPOLAR” displays positive number with seven full digits (9999999)
and negative numbers with six digits (-999999).
DISPLAY. DECPTMenu Item
Selects the decimal point location on the channel’s display and serial communica-
tions output. Use the [UP] and [DOWN] buttons to move the decimal point to the
right and left.
This menu item may be automatically updated by a transducer’s Signature Mod-
ule.
DISPLAY. COUNT-BYMenu Item
Determines by what value the display increments or decrements. This will make
the display less sensitive to a noisy signal. The choices are:
•
•
•
•
•
•
•
•
“00001”
“00002”
“00005”
“00010”
“00020”
“00050”
“00100”
“00200”
DISPLAY. UNITSMenu Item
Specifies the four character label that is displayed to the right of the channel’s val-
ues.
NOTICE
This menu item doesn’t change the mathematical scaling of the channel’s val-
ues; that can be changed by altering the “CALIBRATION DATA -> FULL SCALE VALUE”
menu item and then performing a re-calibration.
This menu item doesn’t change the mathematical scaling of the channel’s values;
that can be changed by altering the “CALIBRATION DATA -> FULL SCALE VALUE” menu item
and then performing a re-calibration.
When a character position is flashing press the [UP] or [DOWN] button to change
the character. Press [ENTER] to advance to the next character.
DISPLAY. AVERAGEMenu Item
Controls the speed with which the channel’s display values will update. Display
averaging does not affect the channel’s analog output or its peak/valley detection,
which will proceed at the speed selected by the ”OPERATION -> FREQ. RESPONSE” menu
item. The choices are:
•
“ON” means that the display will update four times each second. The channel’s
values will be averaged for 1/4 second, then displayed.
•
“OFF” means that the channel’s display will update as quickly as possible.
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12.6.3 AUXn FUNCTION
Menu Items
The AUX1 FUNCTION and AUX2 FUNCTION menu items determine what happens when the
Auxiliary Function pins (labeled as “AUX1” and “AUX2”) on the channel’s connector
are activated. These pins are “activated” when connected to the DGND pin. The
choices are:
•
•
•
•
•
•
“DISABLED” means that activating the pin does nothing.
“TRACK HOLD” means that the tracking, peak and valley values will not be updated.
“HIGH/LOW HOLD” means that the peak and valley values will not be updated.
“HIGH/LOW CLEAR” means that the peak and valley values are reset.
“TARE ON” activates the channel’s Tare function (resets it to zero) .
“TARE OFF” deactivates the channel’s Tare function.
As the Auxiliary Function pins are not isolated, it is recommended that a push-button
switch or relay is used to connect these pins to the Digital Ground pin.
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12.6.4 CALIBRATION TYPE
Menu Item
This chooses the type of calibration technique to be used. There are two methods
that can be used to calibrate the transducer to the Input Channel. Each has
advantages and disadvantages as described in the table below.
Table 1-7: Comparison of Calibration Types
2-, 3-, or 5-point
Shunt Calibration
Known Load
Calibration
RECOMMENDED...
...for most applications
no
yes
no
...when frequently swapping
transducers
yes
...when best possible accuracy
required
no
yes
PROS and CONS
Relative accuracy
good
no
best
yes
Requires actual, calibrated loads
to be applied
CALIBRATION TECHNIQUE
Zero-scale point from...
Full-scale point from...
applied load
applied load
applied load
transducer output
when Shunt Cal pins
connected
Linearity correction from...
N/A
2-point: none
3- or 5-point:
applied load
It is important to know your application in order to select the appropriate cali-
bration type. When the best possible accuracy is required, Known-Load Calibra-
tion is recommended. However, if known-loads are not available, Shunt
Calibration may be used instead.
The choices for this menu item are:
•
“TYPE= SHUNT CAL” means Shunt Calibration. First, you are prompted to apply
the load entered in the “ZERO SCALE VALUE” register. Next, the instrument inter-
connects the Shunt Cal 1 and Shunt Cal 2 pins. This activates the trans-
ducer’s or in-line amplifier’s shunt calibration circuit which causes a
predictable apparent signal. The instrument then takes a reading and adjusts
itself using the “SHUNT CAL VALUE” register.
•
•
“TYPE= 2 POINT CAL” means 2-Point Known Load Calibration. You are prompted
to apply the loads to the transducer that were entered in the “KNOWN POINT 1/2”
and “KNOWN POINT 2/2” registers. This technique assumes that the transducer is
linear, so the usual loads used are zero scale and full scale.
“TYPE= 3 POINT CAL” means 3-Point Known Load Calibration. You are prompted
to apply the loads to the transducer that were entered in the “KNOWN POINT 1/3”
and “KNOWN POINT 2/3” and “KNOWN POINT 3/3” registers. This technique can be
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used to compensate for the non-linearity in the transducer. The usual loads
used are zero scale, half scale and full scale, but you are not restricted to
these loads.
•
“TYPE= 5 POINT CAL” means 5-Point Known Load Calibration. You are prompted
to apply the loads to the transducer that were entered in the “KNOWN POINT 1/5”,
“KNOWN POINT 2/5”, “KNOWN POINT 3/5”, “KNOWN POINT 4/5” and “KNOWN POINT 5/5” regis-
ters. This technique can be used to compensate for the non-linearity in the
transducer. The usual loads used are zero scale, one-quarter scale, half
scale, three-quarters scale and full scale, but you are not restricted to these
loads.
The selection of the calibration type affects what menu items appear in the CALI-
BRATION DATA sub-menu.
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12.6.5 CALIBRATION DATA
Sub-Menu
This enters the values that will be used by the instrument when it calibrates itself
to the transducer. The menu items that are displayed will change according to
what the CALIBRATION TYPE is set for.
FULL SCALE VOLTor
FULL SCALE CURRMenu Item
The nominal transducer/amplifier output when its full-scale load is applied to it, in
volts or milliamps. This menu item is used by the instrument to set gain of its
amplifier circuit. This value is normally found on the transducer’s Certificate of
Calibration or amplifier’s Application Note.
FULL SCALE VALUEMenu Item
ZERO SCALE VALUEMenu Item
SHUNT CAL VALUEMenu Item
The transducer’s full-scale output in engineering units.
It is available only with the Shunt Calibration type.
The transducer’s zero-scale output in engineering units, which is usually zero.
It is available only with the Shunt Calibration type.
The shunt calibration value must be calculated by using information found on the
transducer’s Certificate of Calibration and the following formula:
Shunt-Calibration Output
-------------------------------------------------------------
SHUNT CAL VALUE =
× Full-Scale Capacity
Full-Scale Output
The terms have the following meanings:
•
Shunt-Calibration Output: The transducer’s output when its shunt calibration
function is activated in Volts or milliamps. Sometimes called “Shunt Cal. Fac-
tor”.
•
•
Full-Scale Output: The transducer’s full-scale output in Volts or milliamps.
Sometimes called “Calibration Factor”.
Full-Scale Capacity: The transducer’s desired full-scale reading in engineering
units (PSI, lbs, Kg, etc.). You may wish to convert the engineering units of this
value. For example, if the transducer full scale is 3000 PSIG and you wish the
channel to read in bar, you must convert 3000 PSIG into 206.84 bar.
This menu item is only available with the Shunt Calibration type.
To verify proper transducer/amplifier operation, you can activate the transducer’s/
amplifier’s shunt calibration function while the instrument is in the RUN mode.
Press and hold the [ENTER] button for three seconds; this will activate the trans-
ducer’s/amplifier’s shunt calibration function and display the reading.
KNOWN POINT x/yMenu Items
This enters the engineering units for the known-load calibration points. These
points must match the actual loads that you will apply to the instrument during cal-
ibration. The number of calibrations points depends on the CALIBRATION TYPE.
When using the 2-Point Known Load Calibration type, the following menu items
are available:
•
“KNOWN POINT 1/2”: point 1 of 2, usually 0% of the transducer’s full-scale capac-
ity.
•
“KNOWN POINT 2/2”: point 2 of 2, usually 100% of the transducer’s full-scale
capacity.
When using the 3-Point Known Load Calibration type, the following menu items
are available:
•
“KNOWN POINT 1/3”: point 1 of 3, usually 0% of the transducer’s full-scale capac-
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ity.
•
•
“KNOWN POINT 2/3”: point 2 of 3, usually 50% of the transducer’s full-scale capac-
ity.
“KNOWN POINT 3/3”: point 3 of 3, usually 100% of the transducer’s full-scale
capacity.
When using the 5-Point Known Load Calibration type, the following menu items
are available:
•
•
•
•
•
“KNOWN POINT 1/5”: point 1 of 5, usually 0% of the transducer’s full-scale capac-
ity.
“KNOWN POINT 2/5”: point 2 of 5, usually 25% of the transducer’s full-scale capac-
ity.
“KNOWN POINT 3/5”: point 3 of 5, usually 50% of the transducer’s full-scale capac-
ity.
“KNOWN POINT 4/5”: point 4 of 5, usually 75% of the transducer’s full-scale capac-
ity.
“KNOWN POINT 5/5”: point 5 of 5, usually 100% of the transducer’s full-scale
capacity.
NOTICE
To insure both correct operation of the transducer and application of the load,
the instrument expects the voltage or current applied at each known-load point
to be increasing. For example, the load applied at Known-Load Point 2/2 must
cause the transducer to produce a more positive voltage or current than at
Known-Load Point 1/2.
These menu items are only available with the Known-Load Calibration types.
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12.6.6 CALIBRATEMenu
Item
This menu item performs a calibration according to what was entered in the CALI-
BRATION TYPE and CALIBRATION DATA menu items.
NOTICE
Before performing a calibration,
•
•
•
the transducer must be connected to the instrument,
the channel’s Excitation and Signal Jumpers must be set,
on page 113), and
•
NOTICE
For maximum accuracy, allow at least twenty minutes of warm-up with the exci-
tation voltage applied to the transducer before calibration.
If the CALIBRATION TYPE is Shunt Calibration...
•
The display will read DOING SHUNT CAL, and prompt you to APPLY 00000 UNIT(where
00000 and UNIT are previously entered as ZERO SCALE VALUEand DISPLAY. UNITS.
When you have applied this load to the transducer, press [ENTER].
The display will then read WORKING and calibration will take place. Upon com-
pletion, the display will indicate DONE and the instrument will return to the RUN
mode.
•
If the CALIBRATION TYPE is 2-Point Known Load Calibration...
•
•
•
The display will read DOING 2POINT CAL, and prompt you to APPLY 00000 UNIT
(where 00000 and UNIT are previously entered as KNOWN POINT 1/2and DISPLAY.
UNITS). When you have applied this load to the transducer, press [ENTER].
The display will read WORKING, then APPLY 01000 UNIT(where 01000 and UNIT are
previously entered as KNOWN POINT 2/2 and DISPLAY. UNITS). When you have
applied this load to the transducer, press [ENTER].
Upon completion, the display will indicate DONEand the instrument will return to
the RUN mode.
If the CALIBRATION TYPE is 3-Point Known Load Calibration...
•
•
•
•
The display will read DOING 3POINT CAL, and prompt you to APPLY 00000 UNIT
(where 00000 and UNIT are previously entered as KNOWN POINT 1/3and DISPLAY.
UNITS). When you have applied this load to the transducer, press [ENTER].
The display will read WORKING, then APPLY 00500 UNIT(where 00500 and UNIT are
previously entered as KNOWN POINT 2/3 and DISPLAY. UNITS). When you have
applied this load to the transducer, press [ENTER].
The display will read WORKING, then APPLY 01000 UNIT(where 01000 and UNIT are
previously entered as KNOWN POINT 3/3 and DISPLAY. UNITS). When you have
applied this load to the transducer, press [ENTER].
Upon completion, the display will indicate DONEand the instrument will return to
the RUN mode.
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If the CALIBRATION TYPE is 5-Point Known Load Calibration...
•
•
•
•
•
•
The display will read DOING 5POINT CAL, and prompt you to APPLY 00000 UNIT
(where 00000 and UNIT are previously entered as KNOWN POINT 1/5and DISPLAY.
UNITS). When you have applied this load to the transducer, press [ENTER].
The display will read WORKING, then APPLY 00250 UNIT(where 00250 and UNIT are
previously entered as KNOWN POINT 2/5 and DISPLAY. UNITS). When you have
applied this load to the transducer, press [ENTER].
The display will read WORKING, then APPLY 00500 UNIT(where 00500 and UNIT are
previously entered as KNOWN POINT 3/5 and DISPLAY. UNITS). When you have
applied this load to the transducer, press [ENTER].
The display will read WORKING, then APPLY 00750 UNIT(where 00750 and UNIT are
previously entered as KNOWN POINT 4/5 and DISPLAY. UNITS). When you have
applied this load to the transducer, press [ENTER].
The display will read WORKING, then APPLY 01000 UNIT(where 01000 and UNIT are
previously entered as KNOWN POINT 5/5 and DISPLAY. UNITS). When you have
applied this load to the transducer, press [ENTER].
The display will now read RETURN PNTS.=NO. If you press [ENTER], the display
will indicate DONE and the instrument will return to the RUN mode. If you use
the [UP] button and [ENTER] to select RETURN POINTS=YES, you may now apply
the same loads again but in reverse order. This will allow the instrument to
measure and partially eliminate any hysteresis that may be present in the
transducer. After the loads have been applied again, the display will indicate
DONE and the instrument will return to the RUN mode.
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12.6.7 DAC SETUPSub-Menu
This sub-menu contains four items that control the Digital-to-Analog Converter
(DAC) output of the channel.
DAC. CHANNELMenu Item
This chooses which channel will drive the DAC output. Normally, the DAC located
on a particular channel will be driven by that channel, but that need not be the
case. For example, if several channels were assigned to load cells on a weighing
platform, the sum of all channels could (mathematically) drive one channel’s DAC
output.
If the DAC is set-up to be driven by its own channel’s tracking value, the Analog
Output will have the frequency response specified by the channel’s FREQ. RESPONSE
menu item. Otherwise, the Analog Output will operate more slowly.
DAC. SOURCE Menu Item
This designates the data source of the channel monitored by the analog output.
The options for this menu item are:
•
•
“TRACK” means the live tracking value of the channel.
“PEAK” means the highest value of the channel since the peak/valley detector
was last cleared.
•
“VALLEY” means the lowest value of the channel since the peak/valley detector
was last cleared.
If the DAC is set-up to be driven by its own channel’s tracking value, the Analog
Output will have the frequency response specified by the channel’s FREQ. RESPONSE
menu item. Otherwise, the Analog Output will operate more slowly.
DAC. ZERO-SCALEMenu Item
This specifies what value, in engineering units, corresponds to zero output on the
Analog Output.
“Zero output” might be 0 Volts, 2.5 Volts, 5 Volts, 4 mA or 12 mA depending on if
DAC. FULL-SCALEMenu Item
Specifies what value, in engineering units, corresponds to full output on the Ana-
log Output.
“Full output” might be 5 Volts, 10 Volts or 20 mA depending on if the channel has
ration” on page 121 for details.
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12.6.8 DIAGNOSTICS
Sub-Menu
DAC FULL SCALEMenu Item
When this menu item is selected, the Analog Output of the channel is forced to its
full-scale output, then DAC UPDATED is displayed. This is useful when calibrating or
trimming the readout connected to the Analog Output.
DAC ZERO SCALEMenu Item
When this menu item is selected, the Analog Output of the channel is forced to its
zero-scale output, then DAC UPDATED is displayed. This is useful when calibrating or
trimming the readout connected to the Analog Output.
VERSION INFOMenu Item
DISPLAY ADCMenu Item
This menu item displays the part number and revision level of the firmware used
by this channels microprocessor.
The options for this menu item are:
•
“OFF” will allow the [VALUE] button to cycle through “TK” (tracking value), “HI”
(peak value) and “LO” (valley value). This is the recommended option.
“ON” will allow the “AD” (percentage of the Analog-to-Digital converter’s full-
scale digitizing capability) display source to be available along with “TK” (track-
ing value), “HI” (peak value) and “LO” (valley value) when the [VALUE] button
is pressed on the front panel.
•
The Analog-to-Digital converter counts are displayed as a percentage from
-100.00% to 100.00%.
This can be used to verify that the transducer’s output does not exceed the input
range of the instrument. If the Analog-to-Digital converter readings display more
than +/-10% when there is no load on the transducer, the transducer has a high
zero offset.
LINEARIZATION Menu Item
The options for this menu item are:
•
“ON” will allow linearization data obtained from either the Signature Module or a
3-Point or 5-Point Known Load Calibration to affect a channel’s scaled values.
This is the recommended option.
•
“OFF” will not allow linearization data to effect the channel’s scaled values. This
is useful when diagnosing problems in a calibration procedure.
DISABLE CHANNEL Menu Item
The options for this menu item are:
•
“ON” will bypass the INITIALIZE and RUN modes of the channel. The track,
peak and valley values of the channel are forced to 0.
“OFF” will allow normal operation of the channel.
•
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12.7 Analog Output Configuration
12.7.1 Identifying the
Output Type
A High-Level Input channel is available with one of two types of digital-to-analog
(DAC) outputs: voltage or current. You can determine which type of output a
channel has by one of three ways:
•
•
Consulting the instrument’s Customer Information Sheet
Examining the SYSTEM MENU -> CONFIGURATION -> CHANNEL nn TYPE menu item where
nn is the number of the channel. If the channel’s type is HIGH-LEVEL V, it has a
voltage output. If the channel’s type is HIGH-LEVEL I, it has a current output.
Examining the channel’s circuit board as shown in the figure below.
•
12.7.2 Channel Menu Items
12.7.3 Output Selection
The Analog Output can be driven by any channel’s track, peak or valley value.
See the “Channel Menu” section earlier in this chapter for a complete listing of
SETUP menu items available on the DAC. SETUP sub-menu.
Jumpers located on the channel’s circuit board determine what outputs are gener-
ated when the value selected to drive the Analog Output (from the DAC. CHANNEL and
DAC. SOURCE menu items) equals the DAC. FULL SCALE and DAC. ZERO SCALE settings.
Figure 12-9: Digital-to-Analog Output Jumper Locations
DAC. ZERO SCALE
DAC. FULL SCALE
J30
J31
Output
Output
jumper
jumper
CHANNELS WITH VOLTAGE OUPUT
0-5V
±5V
2.5 Volts
0 Volts
5 Volts
0 Volts
5 Volts
5 Volts
open
open
closed
open
0-10V
±10V
10 Volts
10 Volts
closed
closed
closed
open
CHANNELS WITH CURRENT OUTPUT
4-20mA
4-20mA
4 mA
20 mA
20 mA
open
open
open
12 mA
closed
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12.8 Troubleshooting
12.8.1 Error Messages
12.8.2 Common Problems
and Solutions
Erratic Display
Check electrical connections for continuity and the transducer’s and/or amplifier’s
wiring code from its Certificate of Calibration and Application Note.
Incorrect wiring may have shorted the excitation power supply. Use the correct
wiring diagram to connect the transducer or amplifier to the instrument.
Make sure that the load on the transducer is constant.
Check input voltage or current to the (+)Signal (“+SIG”) and (-)Signal (“-SIG”) pins
with a multi-meter.
Blank Display
Incorrect wiring may have shorted the ±15 VDC excitation power supply. Use the
correct wiring diagram to connect the transducer or amplifier to the instrument.
+OVLD or -OVLD on Display
Indicates that the voltage across the (+)Signal (“+SIG”) and (-)Signal (“-SIG”) pins
is overranging or underranging the amplifier circuit. Make certain all wires are
connected properly.
If you remove all load from the transducer and you still see this message, the
(+)Excitation (“+EXC”) or (-)Excitation (“-EXC”) pins may be shorted to the (+)Sig-
nal (“+SIG”) or (-)Signal (“-SIG”) pins.
If you remove all load from the transducer and you get a numeric reading, the
transducer may have a high zero offset. Use the channel’s SETUP menu and set
DIAGNOSTICS -> DISPLAY ADC to “ON”; in the RUN mode this will allow the [VALUE] but-
ton to display raw A/D readings as a percentage of its full-scale. If the raw A/D
readings display more than +/-10% when there is no load on the transducer, the
transducer has a high zero offset.
Analog Output Incorrect
Make certain of the type of Analog Output (voltage or current) that the channel is
Use the DIAGNOSTICS-> DAC FULL SCALEand DIAGNOSTICS -> DAC ZERO SCALE menu items to
force the Analog Output to a known output. Then, adjust your readout device,
panel meter, PLC or data acquisition system to match.
Check the output selection jumpers; see “Output Selection” on page 121.
Auxiliary Function Pins Not
Operating
Make sure that the AUX1 FUNCTION or AUX2 FUNCTION SETUP menu items are set cor-
rectly; if they are set to DISABLED then they will not operate.
The Auxiliary Function (“AUX1” and “AUX2”) pins must be connected to pin 10,
not pin 8, to activate them.
Sensitivity to EMI/RFI
To obtain maximum immunity to electromagnetic or radio frequency interference,
make certain that the shields of the transducer cables are connected to the “cable
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Chapter 13
Relay Output Channel
13.1 Features
13.1.1 First Channel
Installed
The first Relay Output channel installed in an instrument supplements the stan-
dard four limits (Limit 1, Limit 2, Limit 3 and Limit 4) . Its four, dry contact relay out-
puts will mirror the Limit Outputs pins of the System connector.
In the SYSTEM -> CONFIGURATIONsub-menu, channels of this type are identified as LIMIT
01-04.
13.1.2 Second Channel
Installed
The second Relay Output channel installed in an instrument adds another four
limits to the instrument (Limit 5, Limit 6, Limit 7 and Limit 8). Its relay outputs
show the status of these limits.
In the SYSTEM -> CONFIGURATIONsub-menu, channels of this type are identified as LIMIT
05-08.
13.1.3 Third Channel
Installed
The third Relay Output channel installed in an instrument adds another four limits
to the instrument (Limit 9, Limit 10, Limit 11 and Limit 12). Its relay outputs show
the status of these limits.
In the SYSTEM -> CONFIGURATIONsub-menu, channels of this type are identified as LIMIT
09-12.
13.1.4 Fourth Channel
Installed
The fourth Relay Output channel installed in an instrument adds another four lim-
its to the instrument (Limit 13, Limit 14, Limit 15 and Limit 16). Its relay outputs
show the status of these limits.
In the SYSTEM -> CONFIGURATIONsub-menu, channels of this type are identified as LIMIT
13-16.
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13.2 Wiring
The pin-out for the Relay Output channel’s 12-pin connector is shown in the following
table.
Table 2-8: Relay Output Channel Pin Connections
Pin
Label
Function
Reference Pin
1 (top)
RELAY1 NC
RELAY1 C
Relay 1 normally closed
Relay 1 common
2
-
2
3
RELAY1 NO
RELAY2 NC
RELAY2 C
Relay 1 normally open
Relay 2 normally closed
Relay 2 common
2
5
-
4
5
6
RELAY2 NO
RELAY3 NC
RELAY3 C
Relay 2 normally open
Relay 3 normally closed
Relay 3 common
5
8
-
7
8
9
RELAY3 NO
RELAY4 NC
RELAY4 C
Relay 3 normally open
Relay 4 normally closed
Relay 4 common
8
11
-
10
11
12 (bottom)
RELAY4 NO
Relay 4 normally open
11
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13.3 Setup Procedure
If you are not familiar with operating the instrument in the SETUP menu mode,
Step 1: Wire to the channel’s connector.
See the “Wiring” section earlier in this chapter for details.
Step 2: Use the appropriate Limit Menu to setup the limits.
NOTICE
A SensoCode program running on a Mathematics Virtual Channel may over-
ride the default behavior of the relay outputs. Consult the Customer Information
Sheet included with your instrument for details.
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13.5 Channel Menu
The Relay Output channel’s SETUP menu allows you to manually turn the relays
on and off to verify that they are functioning. To change the operation of the limits,
Detailed instructions on operating the instrument in the SETUP Menu mode can
13.5.1 DIAGNOSTICS
Sub-Menu
RELAY 1Menu Item
RELAY 2Menu Item
RELAY 3Menu Item
RELAY 4Menu Item
The options for this menu item are:
•
•
“ON” will turn the relay on.
“OFF” will turn the relay off.
The options for this menu item are:
•
•
“ON” will turn the relay on.
“OFF” will turn the relay off.
The options for this menu item are:
•
•
“ON” will turn the relay on.
“OFF” will turn the relay off.
The options for this menu item are:
•
•
“ON” will turn the relay on.
“OFF” will turn the relay off.
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Chapter 14
DAC Output Channel
14.1 Features
The DAC Output channel uses a digital-to-analog converter to generate a voltage
or current from any channel’s track, peak or valley value. This type of channel is
often used to provide a Mathematics Virtual channel with an analog output.
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14.2 Wiring
Connect your readout instrument to a DAC Output channel by wiring it to the 12-pin
connector of that channel. The Customer Information Sheet that shipped with the
instrument describes which cards are installed in each channel. The pin-out for this
connector is shown on the following table.
Table 3-9: DAC Output Channel Pin Connections
Pin
Label
Function
Reference Pin
1 (top)
N/C
N/C
No connection
No connection
No connection
No connection
No connection
No connection
Analog Output
Analog Return
No connection
No connection
No connection
No connection
2
3
N/C
4
N/C
5
N/C
6
N/C
7
+OUT
-OUT
N/C
8
-
8
9
10
11
N/C
N/C
12
(bottom)
N/C
The Analog Output and Analog Return pins are electrically isolated from all other pins
on the instrument.
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14.3 Setup Procedure
If you are not familiar with operating the instrument in the SETUP menu mode,
Step 1: Determine if you have a Voltage DAC Output channel or a Current DAC
Output channel.
Check the instrument’s Customer Information Sheet, or see “Identifying the
Step 2: Wire the readout instrument to the channel’s connector.
See the “Wiring” section earlier in this chapter for details.
Step 3: Select the value (channel and source) used to drive the Analog Output
Step 4: Select the full-scale and zero-scale settings used to drive the Analog Out-
put.
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14.4 Specifications
ANALOG OUTPUT
Voltage range (voltage output
channels)
5, ±5 or 10 VDC
4-20 mA
Current range (current output
channels)
Source
Isolation
any channel’s track, peak or valley value
500V
Resolution
Update Rate
12 bits
depends on how many channels are
installed in the instrument
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14.5 Channel Menu
Each DAC Output channel is configured and calibrated via its channel menu.
Detailed instructions on operating the instrument in the SETUP Menu mode can
14.5.1 DAC SETUPSub-Menu
This sub-menu contains four items that controls the analog output of the channel.
DAC. CHANNELMenu Item
This chooses which channel will drive the Digital-to-Analog Converter (DAC) out-
put.
DAC. SOURCE Menu Item
This designates the data source of the channel monitored by the analog output.
Each channel has three data sources: the live tracking value (TRACK), its highest
value (PEAK), and its lowest value (VALLEY).
The options for this menu item are:
•
•
“TRACK” means the live tracking value of the channel.
“PEAK” means the highest value of the channel since the peak/valley detector
was last cleared.
•
“VALLEY” means the lowest value of the channel since the peak/valley detector
was last cleared.
DAC. ZERO-SCALEMenu Item
This specifies what value, in engineering units, corresponds to zero output on the
Analog Output.
“Zero output” might be 0 Volts, 2.5 Volts, 5 Volts, 4 mA or 12 mA depending on if
the channel has a voltage or current output and how it is configured. See the
“Digital-to-Analog Output” section of this chapter for details.
This menu item is not automatically updated by another channel’s Signature Mod-
ule equipped transducer.
DAC. FULL-SCALEMenu Item
This specifies what value, in engineering units, corresponds to full output on the
Analog Output.
“Full output” might be 5 Volts, 10 Volts or 20 mA depending on if the channel has
a voltage or current output and how it is configured. See the “Digital-to-Analog
Output” section of this chapter for details.
This menu item is not automatically updated by another channel’s Signature Mod-
ule equipped transducer.
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14.5.2 DIAGNOSTICS
Sub-Menu
DAC FULL SCALEMenu Item
When this menu item is selected, the Analog Output of the channel is forced to its full-
scale output, then DAC UPDATED is displayed. This is useful when calibrating or trimming
the readout connected to the Analog Output.
DAC ZERO SCALEMenu Item
When this menu item is selected, the Analog Output of the channel is forced to its
zero-scale output, then DAC UPDATEDis displayed. This is useful when calibrating or trim-
ming the readout connected to the Analog Output.
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14.6 Analog Output Configuration
14.6.1 Identifying the
Output Type
A DAC Output channel is available with one of two types of digital-to-analog
(DAC) outputs: voltage or current. You can determine which type of output a
channel has by one of three ways:
•
•
Consulting the instrument’s Customer Information Sheet
Examining the SYSTEM MENU -> CONFIGURATION -> CHANNEL nn TYPE menu item where
nn is the number of the channel. If the channel’s type is VOLTAGE DAC, it has a
voltage output. If the channel’s type is CURRENT DAC, it has a current output.
Examining the channel’s circuit board as shown in the figure below.
•
14.6.2 Channel Menu Items
14.6.3 Output Selection
The Analog Output can be driven by any channel’s track, peak or valley value.
See the “Channel Menu” section earlier in this chapter for a complete listing of
SETUP menu items available on the DAC. SETUP sub-menu.
Jumpers located on the channel’s circuit board determine what outputs are gener-
ated when the value selected to drive the Analog Output (from the DAC. CHANNEL and
DAC. SOURCE menu items) equals the DAC. FULL SCALE and DAC. ZERO SCALE settings.
Figure 14-1: Digital-to-Analog Output Jumper Locations
DAC. ZERO SCALE
DAC. FULL SCALE
P31
J11
Output
Output
jumper
jumper
CHANNELS WITH VOLTAGE OUPUT
0-5V
0-5V
±5V
2.5 Volts
0 Volts
0 Volts
5 Volts
0 Volts
5 Volts
5 Volts
5 Volts
10 Volts
10 Volts
bottom
bottom
top
open
closed
open
0-10V
0-10V
middle
middle
open
closed
CHANNELS WITH CURRENT OUTPUT
4-20mA
4-20mA
4 mA
20 mA
20 mA
bottom
bottom
closed
open
12 mA
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14.7 Troubleshooting
14.7.1 Error Messages
14.7.2 Common
Problems and Solutions
Analog Output Incorrect
Make certain of the type of Analog Output (voltage or current) that the channel is
Use the DIAGNOSTICS -> DAC FULL SCALE and DIAGNOSTICS -> DAC ZERO SCALE menu items to
force the Analog Output to a known output. Then, adjust your readout device, panel
meter, PLC or data acquisition system to match.
Check the output selection jumpers; see “Output Selection” on page 135.
Check the “DAC SETUP -> DAC. ZERO-SCALE” and “DAC SETUP -> DAC FULL-SCALE” menu items.
Sensitivity to EMI/RFI
To obtain maximum immunity to electromagnetic or radio frequency interference,
make certain that the shield of the cable is connected to ground/earth only at the read-
out device. The shield of the cable should not be connected to the instrument.
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Chapter 15
Split Display Virtual Channel
15.1 Features
The Split Display Virtual Channel allows the display of two track, peak or valley
values from any two channels at the same time. One value is displayed on the left
side of the display, and another value is displayed on the right side.
The display setup used to format each value is inherited from the source channel
of the value.
Split Displays are most useful on chassis with a 16-character display such as the
Models SC1000, SC2000 and SC2001. The quad-line, 20-character display of
the Model SC3004, however, already allows an Input Channel to show its own
Track & Peak, Track & Valley or Peak & Valley values on the display at the same
time. Thus, a Split Display Virtual Channel is not generally used on an Model
SC3004.
15.2 Wiring
A Virtual Channel exists in software only; it does not occupy a physical slot inside
of the instrument’s chassis. However, a Virtual Channel does require a channel
number.
There is no rear-panel connector for a Virtual Channel.
15.3 Setup Procedure
If you are not familiar with operating the instrument in the SETUP menu mode,
Step 1: Enter the value to be displayed on the left side with LEFT CHANNEL and LEFT
SOURCE.
Step 2: Enter the value to be displayed on the right side with RIGHT CHANNEL and
RIGHT SOURCE.
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15.4 Channel Menu
Detailed instructions on operating the instrument in the SETUP Menu mode can be
LEFT CHANNELMenu Item
LEFT SOURCE Menu Item
This specifies the channel that is displayed on the left half of the split display.
This lets you designate the data source of the channel monitored by the left half of the
split display. Each channel has three data sources: the live tracking value (TRACK),
its highest value (PEAK), and its lowest value (VALLEY).
The options for this menu item are:
•
•
“TRACK” means the live tracking value of the channel.
“PEAK” means the highest value of the channel since the peak detector was last
cleared.
•
“VALLEY” means the lowest value of the channel since the valley detector was last
cleared.
RIGHT CHANNELMenu Item
RIGHT SOURCEMenu Item
This specifies the channel that is displayed on the right half of the split display.
This lets you designate the data source of the channel monitored by the right half of
the split display. Each channel has three data sources: the live tracking value
(TRACK), its highest value (PEAK), and its lowest value (VALLEY).
The options for this menu item are:
•
•
“TRACK” means the live tracking value of the channel.
“PEAK” means the highest value of the channel since the peak detector was last
cleared.
•
“VALLEY” means the lowest value of the channel since the valley detector was last
cleared.
LEAVE MENUMenu Item
When the menu item is displayed, press [ENTER] to leave this menu. Press [EXIT] to
return to the RUN mode.
15.5 Troubleshooting
Front Panel Buttons not
Operating in RUN Mode
When a Split Display Virtual channel is displayed the [VALUE], [CLEAR] and [TARE]
buttons have no effect. To change one of the values shown on a Split Display Virtual
channel, use the its SETUP menu. To clear peak/valley values or tare an Input chan-
nel, use the [CHANNEL] button to select an Input channel and then use the [CLEAR]
or [TARE] buttons.
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Chapter 16
Mathematics Virtual Channel
16.1 Features
The Mathematics Virtual Channel is a powerful, flexible means to allow SC Series
Instruments to perform simple to moderate functions that previously required the
use of expensive programmable logic controllers (PLC).
A Mathematics Virtual Channel is akin to a PLC; it can execute programs written
in an interpretive language called SensoCode. At the time of order, your specific
application is analyzed by our sales and engineering staff and one or more Senso-
Code programs are created. These SensoCode programs are loaded into the
Mathematics Virtual channels of the instrument at the factory. The end result is an
instrument that meets your specific needs but is built with “off-the-shelf” hardware
and software.
SensoCode programs allow the instrument to perform a variety of functions
including:
•
•
•
•
Mathematics: addition, subtraction, multiplication, division, square roots, etc.
Logical: if/then condition statements, comparison of values
Timing
Input: from any channel’s track, peak or valley values, open-collector inputs,
constant user-entered values from the SETUP menu
Output: Each Mathematics Channel generates its own track, peak, and valley
values. A SensoCode program can “take control” of the Limit Output and/or
front panel indicator lights.
•
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16.2 Wiring
A Virtual Channel exists in software only; it does not occupy a physical slot inside of
the instrument’s chassis. However, a Virtual Channel does require a channel number.
A SensoCode program that is executed by a Mathematics Virtual Channel can use the
System connector’s Limit Output pins and Function Input pins for its own purposes.
Consult the Customer Information Sheet and Supplemental Instructions included with
the particular instrument for details.
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16.3 Setup Procedure
If you are not familiar with operating the instrument in the SETUP menu mode,
Step 1: Examine the Supplemental Instructions.
Supplemental Instructions contain important information about what each
Mathematics Channel does and what Function Inputs and/or Limit Output
pins of the System connector are used.
Step 2: Wire to the pins on the System connector.
mental Instructions to determine the wiring for your application.
Step 3: Verify operation.
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16.4 Channel Menu
Each Mathematics Virtual Channel can have its configuration and SensoCode pro-
gramming examined via its channel menu. It is not possible to alter the SensoCode
program with the SETUP menu. Detailed instructions on operating the instrument in
16.4.1 SENSOCODE P/N
Menu Item
This menu item displays the part number and revision level of the SensoCode pro-
gram loaded in this Mathematics Virtual Channel.
16.4.2 USER VALUES
Sub-Menu
This sub-menu contains menu items for each of the User Values. User Values are
constant numeric values that can be edited by the user and read by a SensoCode pro-
gram. The use of each User Value depends on the SensoCode program loaded in the
Mathematics Virtual Channel.
By default, the four items on this menu are USER VALUE 1, USER VALUE 2, USER VALUE 3 and
USER VALUE 4. However, a SensoCode program can alter the menu item text for each of
the User Values to make them more relevant to the operator. For example, USER VALUE
1
might be re-titled JELLY BEAN COUNT
.
16.4.3 VIEW SENSOCODE
Menu Item
This menu item allows the display of each “step” (either an operand or an instruction)
of the SensoCode program presently loaded into a Mathematics Virtual Channel.
Pressing [ENTER] will display the next step of the SensoCode program until the entire
program has been viewed.
SensoCode programs cannot be altered with the SETUP Mode menu; they can only
be loaded via the serial port with the Instrument Utility Software.
16.4.4 VIEW COMMANDS
Sub-Menu
This sub-menu contains menu items for each of the Command Strings that can be
used by a SensoCode program. Command Strings are text constants that can be
read by a SensoCode program. They are not able to be changed with the SETUP
menu. The use of each Command String depends on the SensoCode program
loaded in the Mathematics Virtual Channel.
The items on this menu are COMMAND 0, COMMAND 1, COMMAND 2, COMMAND 3, COMMAND 4, COMMAND 5,
COMMAND 6, and COMMAND 7.
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16.4.5 DISPLAY SETUP
Sub-Menu
This menu controls how data values are displayed by the channel and transmitted
via serial communications.
DISPLAY. DIGITSMenu Item
Selects the number of digits displayed by the channel. The choices are:
•
•
•
“5 DIGIT-BIPOLAR” displays both positive and negative numbers with five full dig-
its (±99999).
“6 DIGIT-UNIPLOAR” displays positive numbers with six full digits (999999) and
negative numbers with five full digits (-99999).
“7 DIGIT UNIPOLAR” displays positive number with seven full digits (9999999)
and negative numbers with six digits (-999999).
DISPLAY. DECPTMenu Item
Selects the decimal point location on the channel’s display and serial communica-
tions output. Use the [UP] and [DOWN] buttons to move the decimal point to the
right and left.
DISPLAY. COUNT-BYMenu Item
Determines by what value the display increments or decrements. This will make
the display less sensitive to a noisy signal. The choices are:
•
•
•
•
•
•
•
•
“00001”
“00002”
“00005”
“00010”
“00020”
“00050”
“00100”
“00200”
DISPLAY. UNITSMenu Item
Specifies the four character label that is displayed to the right of the channel’s val-
ues. This menu item doesn’t change the mathematical scaling of the channel’s
values; that is determined by the “CALIBRATION DATA -> FULL SCALE VALUE” menu item.
When a character position is flashing press the [UP] or [DOWN] button to change
the character. Press [ENTER] to advance to the next character.
DISPLAY. AVERAGEMenu Item
Controls the speed with which the channel’s display values will update. The
choices are:
•
“ON” means that the display will update four times each second. The channel’s
values will be averaged for 1/4 second, then displayed.
•
“OFF” means that the channel’s display will update as quickly as possible.
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16.4.6POWER-ONSOURCE
Menu Item
This menu selects which value is displayed by the channel when first entering the
RUN mode.
For single-line displays, the choices are:
•
•
•
“TRACK” means the live tracking value of the channel.
“PEAK” means the highest value of the channel.
“VALLEY” means the lowest value of the channel.
For multi-line displays, the choices are:
•
•
•
•
•
•
“TRACK” means the live tracking value of the channel.
“PEAK” means the highest value of the channel.
“VALLEY” means the lowest value of the channel.
“TRACK / PEAK” means the live tracking value and the highest value of the channel.
“TRACK / VALLEY” means the live tracking value and the lowest value of the channel.
“PEAK / VALLEY” means the highest and lowest values of the channel.
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16.5 Troubleshooting
NOTICE
Supplemental Instructions included with the instrument may contain important
information about which indicator lights, Function Input pins and/or Limit Output
pins of the System connector are used by the Mathematics Virtual channel.
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Chapter 17
Error Messages
17.1 Overview
If the instrument detects an error during the RUN, INITIALIZE, or SETUP modes,
it stops operation and enters its ERROR mode as described in “Operating Modes”
The most frequent causes of error messages are:
•
•
Wiring/electrical connection problems
Misplaced address jumpers when installing or removing channel circuit
boards
•
•
Swapping channel circuit boards between instruments
Incorrect calibration of the transducer to the instrument
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17.2 Error Message List
Error 05, DIVIDE BY ZERO
Error 07, SQUARE ROOT
A Mathematics Virtual channel has attempted to divide by zero.
A Mathematics Virtual channel has attempted to take the square root of a negative
number.
Error 09, LOG/LN
A Mathematics Virtual channel has attempted to take the logarithm of either zero or a
negative number.
Error 16, +15V SUPPLY HIGH
Error 17, +15V SUPPLY LOW
The internal +15 VDC power supply is generating a voltage that is too high.
The internal +15 VDC power supply is generating a voltage that is too low. Check the
wiring between the instrument and the transducer or amplifier.
Error 18, -15V SUPPLY HIGH
Error 19, -15V SUPPLY LOW
Error 20, CHANNEL >MAXCH
The internal -15 VDC power supply is generating a voltage that is too high (more pos-
itive). Check the wiring between the instrument and the transducer or amplifier.
The internal -15 VDC power supply is generating a voltage that is too low (more nega-
tive).
An invalid channel number has been encountered by the instrument. Restart the
instrument. If this error persists, contact our Service department with the information
found in the SYSTEM MENU -> SOFTWARE REV. menu item.
Error 21, BLOWN STACK
The instrument’s software stack has overflowed. Restart the instrument. If this error
persists, contact our Service department with the information found in the SYSTEM MENU
-
>
SOFTWARE REV. menu item.
Error 22, TYPE NOT FOUND
Error 23, CAN'T RENDER FS
Error 24, SIG.MOD CRC ROM
The instrument has not been programmed to understand the type of channel. Contact
our Service department with the information found in the SYSTEM MENU -> SOFTWARE REV.
menu item.
The full-scale value of the transducer cannot be rendered on the display with the
selected DISPLAY SETUPmenu settings. Change the DISPLAY SETUP menu settings to better
match the transducer’s capacity.
A checksum error occurred while reading a Signature Module’s read-only-memory.
Check the wiring and restart the instrument. This error may occur with very long cable
lengths.
Error 25, SIG.MOD CRC READ
Error 26, NO SIG.MOD.
A checksum failure occurred reading data from a Signature Module. Check the wiring.
This error may be caused by a faulty Signature Module.
No Signature Module was detected during UPDATE SIG.MOD. or DEFAULT SIG.MOD. Check
wiring.
Error 27, S.EE WRITE NAK
The channel’s EEPROM could not be detected during a write operation. Check that
the channel’s address jumpers are set properly so that each card has an unique
address.
Error 28, S.EE READ NAK
The channel’s EEPROM could not be detected during a read operation. Check that
the channel’s address jumpers are set properly.
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Error 29, S.EE VERIFY FAIL
Error 30, S.EE ERASE NAK
Error 31, BLANK IDENT
A verification failure occurred during a write operation to the channel’s EEPROM.
Restart the instrument.
The channel’s EEPROM could not be detected during an erase operation. Check
that the channel’s address jumpers are set properly.
The channel does not appear to have been installed properly. This occurs if you
swap Input or Output boards without using SYSTEM MENU -> INSTALL CHANNEL to format
the channel’s EEPROM.
Error 32, BOGUS EE ADDR
An invalid address has been passed to the programmer. Restart the instrument. If
this problem persists, contact our Service department with the information found
in the SYSTEM MENU -> SOFTWARE REV. menu item.
Error 33, SIG.MOD WIRES
Error 34, SIG.MOD MISMATCH
Error 35, BOGUS MENU TYPE
Error 36, BAD EE TABLE
The instrument has detected that the (+)Signature and (-)Signature pins (labeled
as “+MEM” and “-MEM) are likely reversed.
The excitation type byte found inside a Signature Module indicates that the chan-
nel is not designed to operate with that type of transducer.
A menu contains an invalid menu type. Contact Sensotec with the information
found in the SYSTEM MENU -> SOFTWARE REV. menu item.
The instrument doesn’t understand the EEPROM type setting for the channel.
Contact Sensotec with the information found in the SYSTEM MENU -> SOFTWARE REV.
menu item.
Error 37, BAD PERSONALITY
Error 38, BAD FORMAT
The channel doesn’t understand the given card type. Contact Sensotec with the
information found in the SYSTEM MENU -> SOFTWARE REV. menu item.
The channel’s EEPROM memory contains a display setting which is not under-
stood by the instrument. Check that every item in the channel’s DISPLAY SETUP
menu has a valid setting.
Error 39, WRONG HARDWARE
Error 41, SHUNT CAL ERROR
The channel type expected by the instrument for the channel number is not the
channel type that is physically installed. If you have changed the address jumpers
on one or more channels, replace them in their original configuration.
The application of the shunt resistor did not affect the transducer’s output. Check
the wiring and the transducer output with a voltmeter to verify proper operation.
If this is a Strain Gage Channel, make certain that the shunt calibration resistor
installed on the circuit board is the correct value per the transducer’s Calibration
Record.
If this is a High-Level Input Channel, make certain that the Shunt Cal 1 and Shunt
Cal 2 pins are connected to the correct pins of the transducer/amplifier.
Error 43, BAD IDENT CRC
Error 44, BAD FUNCTION
Error 45, A/D NAK
A checksum failure has occurred when reading a channel’s EEPROM. Restart
the instrument.
The instrument has requested that the channel perform a function that it is not
capable of. Restart the instrument.
Hardware error. The channel’s Analog-to-Digital converter is not communicating
with the channel’s microprocessor. Restart the instrument.
Error 46, SENSE WIRES
The Strain Gage Channel’s (+)Sense and (-)Sense pins (labeled as “+SEN” and “-
SC Series Instruction Manual page 153
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SEN”) are not connected to the (+)Excitation and (-)Excitation pins (labeled as “+EXC”
and “-EXC”), respectively,
unplugged from the channel.
This is most likely caused by the connector being
If you are not interested in the using this channel and you wish to suppress this error,
Error 47, BAD EE TYPE REQ
When installing a channel, the EEPROM type requested by the channel is not valid.
Contact Sensotec with the information found in the SYSTEM MENU -> SOFTWARE REV. menu
item.
Error 48, NULL MENU
A menu contains a NULL item. Contact our Service department with the information
found in the SYSTEM MENU -> SOFTWARE REV. menu item.
Error 49, NULL ACTION FCN
Error 50, EXCITATION
A menu contains a NULL action function. Contact our Service department with the
information found in the SYSTEM MENU -> SOFTWARE REV. menu item.
The channel’s excitation voltage regulator has shut down because the protection cir-
cuit that limits the output current has activated. This is most likely caused by a short of
the (+)Excitation and (-)Excitation pins (labeled as “+EXC” and “-EXC”).
Error 51, CAN'T DO EXC.
The channel’s EEPROM memory contains an excitation setting which is not under-
stood by the instrument. Change the channel’s CALIBRATION DATA -> EXCITATION menu
item to another setting.
Error 52, SIG.MOD LENGTH R
Error 53, SIG.MOD RECTYPE
Error 54, SIG.MOD LENGTH W
Error 55, SIG.MOD VERIFY SP
Error 56, SIG.MOD VERIFY
Error 57, WRONG SIG.MOD.
An unexpected length byte was found inside a Signature Module during a read opera-
tion. Check the wiring.
An unexpected record type was found inside a Signature Module during a read opera-
tion. Check the wiring.
An unexpected record type was found inside a Signature Module during a write opera-
tion. Check the wiring and re-start the instrument.
A data verification error occurred during a write operation to a Signature Module’s
scratchpad. Check the wiring and re-start the instrument.
A data verification error occurred during a write operation to a Signature Module.
Check the wiring and re-start the instrument.
You have attempted to perform an UPDATE SIG.MOD. operation with a different Signature
Module than what was connected when the instrument was powered up. Re-connect
the original transducer/Signature Module and restart the instrument.
Another cause of this error is described in the description for Error 68 below.
Error 58, WRONG EE VERSION
The channel’s EEPROM memory data is not able to be used by this version of firm-
ware. Make certain that you have not accidentally swapped channel circuit boards
between instruments. If you are certain that you want to use the channel circuit board
with this instrument, you may reset the channel’s EEPROM memory data to factory
defaults with the SYSTEM MENU -> DEFAULT CHANNEL menu item.
Error 59, CAN’T DO SIG.MOD
Error 60, SLAVE TIMEOUT
A Signature Module is connected to a channel which doesn’t support Signature Cali-
bration. Only Strain Gage Input channels are designed to operate with Signature Cal-
ibration.
The channel’s microprocessor did not respond because the channel’s analog-to-digi-
tal converter did not calibrate properly. Restart the instrument.
page 154
008-0608-00
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Error 61, LOAD NOT GT LOAD
A load applied during a known-load calibration was not greater than a previously
applied load. To insure both correct operation of the transducer and application of the
load, the instrument expects the voltage applied at each known-load point to be
increasing. For example, the load applied at Known-Load Point 2/2 must cause the
transducer to produce a more positive voltage than at Known-Load Point 1/2.
If you are calibrating with a AC-AC LVDT Input channel, make certain that you have
followed the procedure described in “Electrical Null and Transducer Mounting” on
Error 62, SLAVE NAK
The channel’s microprocessor is responding to a message, but it did not acknowledge
it correctly. Restart the instrument.
Error 67, LOADS NOT CLOSE
During a 5-Point Known-Load calibration, you would typically apply loads at 0%, 25%,
50%, 75% and 100% of the transducer’s full-scale and optionally calibrate the return
points of 75%, 50%, 25% and 0%. The instrument makes sure that transducer read-
ings taken during the second application of the load are close to the readings taken
during the first application of the load. This insures both correct operation of the trans-
ducer and application of the loads.
Error 68, CAN'T CALIBRATE
The instrument has detected that the transducer presently connected to the channel is
different than the transducer the channel was last calibrated with. Ordinarily, the
instrument would perform a Shunt Calibration or mV/V Calibration. However, since
the channel’s CALIBRATION TYPE menu item is set to one of the Known-Load Calibration
settings, no calibration can take place. Either re-connect the original transducer or
use the SETUP menu to perform a calibration.
Error 70, CAN'T DO GAIN
The channel’s EEPROM memory contains an input range setting which is beyond the
capabilities of the channel. Change the channel’s CALIBRATION DATA -> FULL SCALE MV/V
menu item to another setting.
Error 71, SLAVE CHECKSUM
Error 72, CAN'T DO FILTER
The channel’s microprocessor did not send a correct checksum to the instrument.
Restart the instrument.
The channel’s EEPROM memory contains a frequency response setting which is not
understood by the instrument. Change the channel’s OPERATION -> FREQ. RESPONSE menu
item to another setting.
Error 73, SLAVE NOT INIT
Error 74, SLAVE BAD REPLY
The channel’s microprocessor has not yet been initialized by the instrument. Restart
the instrument.
The channel’s microprocessor replied with a message that was either not understood
or different than expected. Restart the instrument.
Error 75, SLAVE NOT FOUND
Error 81, OPERAND EXPECTED
The channel’s microprocessor did not respond. Restart the instrument.
The first step of a SensoCode program must be an Operand. The SensoCode pro-
gram loaded in the Mathematics Virtual channel is invalid.
Error 82, BAD OPERAND
Error 83, BAD INSTRUCTION
Error 84, BAD VALUE
The SensoCode program loaded into a Mathematics Virtual channel contains a bad
operand.
The SensoCode program loaded into a Mathematics Virtual channel contains a bad
instruction.
A Mathematics Virtual channel has attempted to get a value from a channel not
installed in the instrument.
SC Series Instruction Manual page 155
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Error 85, UNREACHABLE GOTO
Error 87, GOTO NOT JUMP
The destination step of a “Go to” Instruction is beyond the end of the SensoCode pro-
gram. The SensoCode program loaded in the Mathematics Virtual channel is invalid.
The SensoCode program contains a “Go to” Instruction that has not been converted
into a “Jump” Instruction. Restart the instrument.
page 156
008-0608-00
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Chapter 18
Setup Menu Reference
18.1 Navigation instructions
•
•
•
•
•
Press [UP]+[DOWN] to enter the SETUP menu mode.
Press [UP] to move up.
Press [DOWN] to move down.
Press [ENTER] to select an item.
Press [EXIT] to re-start the instrument.
SC Series Instruction Manual page 157
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Table 7-10: SETUP Menu
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(menu varies according to channel type)
(see LIMIT MENU)
(see LIMIT MENU)
(see LIMIT MENU)
(see LIMIT MENU)
(optional)(see LIMIT MENU)
(optional)(see LIMIT MENU)
(optional)(see LIMIT MENU)
(optional)(see LIMIT MENU)
(optional)(see LIMIT MENU)
(optional)(see LIMIT MENU)
(optional)(see LIMIT MENU)
(optional)(see LIMIT MENU)
(optional)(see LIMIT MENU)
(optional)(see LIMIT MENU)
(optional)(see LIMIT MENU)
(optional)(see LIMIT MENU)
(see SYSTEM MENU)
CHANNEL 01 MENU
CHANNEL 02 MENU
CHANNEL 03 MENU
CHANNEL 04 MENU
CHANNEL 05 MENU
CHANNEL 06 MENU
CHANNEL 07 MENU
CHANNEL 08 MENU
CHANNEL 09 MENU
CHANNEL 10 MENU
CHANNEL 11 MENU
CHANNEL 12 MENU
CHANNEL 13 MENU
CHANNEL 14 MENU
CHANNEL 15 MENU
CHANNEL 16 MENU
CHANNEL 17 MENU
CHANNEL 18 MENU
CHANNEL 19 MENU
CHANNEL 20 MENU
CHANNEL 21 MENU
CHANNEL 22 MENU
CHANNEL 23 MENU
LIMIT 01 MENU
LIMIT 02 MENU
LIMIT 03 MENU
LIMIT 04 MENU
LIMIT 05 MENU
LIMIT 06 MENU
LIMIT 07 MENU
LIMIT 08 MENU
LIMIT 09 MENU
LIMIT 10 MENU
LIMIT 11 MENU
LIMIT 12 MENU
LIMIT 13 MENU
LIMIT 14 MENU
LIMIT 15 MENU
LIMIT 16 MENU
SYSTEM MENU
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
ꢀꢀꢀ
(see SERIAL COM MENU)
(see DISPLAY MENU)
SERIAL COM MENU
DISPLAY MENU
page 158
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Table 7-11: System Menu
SYSTEM MENU
SOFTWARE REVISION
ꢀꢁꢀ
ꢂꢀ
ꢃ
CONFIGURATION
DISPLAY TYPE
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢀꢁꢀ
ꢃ
CHANNEL 01 TYPE
CHANNEL 02 TYPE
CHANNEL 03 TYPE
CHANNEL 04 TYPE
CHANNEL 05 TYPE
CHANNEL 06 TYPE
CHANNEL 07 TYPE
CHANNEL 08 TYPE
CHANNEL 09 TYPE
CHANNEL 10 TYPE
CHANNEL 11 TYPE
CHANNEL 12 TYPE
CHANNEL 14 TYPE
CHANNEL 15 TYPE
CHANNEL 16 TYPE
CHANNEL 17 TYPE
CHANNEL 18 TYPE
CHANNEL 19 TYPE
CHANNEL 20 TYPE
CHANNEL 21 TYPE
CHANNEL 22 TYPE
CHANNEL 23 TYPE
LEAVE SUB-MENU
OUTPUT 1, PIN 14
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
DIAGNOSTICS
ON
ꢂꢀ
ꢃ
ꢀꢁꢀ
ꢄꢀ
OFF
ON
OUTPUT 2, PIN 15
OUTPUT 3, PIN 16
OUTPUT 4, PIN 17
ꢃ
ꢂꢀ
ꢃ
ꢀꢁꢀ
ꢄꢀ
OFF
ON
ꢃ
ꢃ
ꢂꢀ
ꢃ
ꢀꢁꢀ
ꢄꢀ
OFF
ON
ꢃ
ꢃ
ꢂꢀ
ꢃ
ꢀꢁꢀ
ꢄꢀ
OFF
ꢃ
INPUT TEST
ꢃ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
SCAN TIME
ꢃ
LEAVE SUB-MENU
65 STRAIN GAGE V
66 STRAIN GAGE I
67 HIGH-LEVEL V
68 HIGH-LEVEL I
6B LVDT V OUT
6C LVDT I OUT
90 LIMIT 01-04
91 LIMIT 05-08
92 LIMIT 09-12
93 LIMIT 13-16
AB SPLIT DISPLAY
AE MATHEMATICS
ꢃ
INSTALL CHANNEL
ꢂꢀ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
DELETE CHANNEL
DEFAULT CHANNEL
LEAVE MENU
ꢂꢀ
ꢂꢀ
ꢄꢀ
SC Series Instruction Manual page 159
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Table 7-12: LIMIT MENU
LIMIT xx MENU
LIMIT. ENABLE
ON
ꢀꢁꢀ
ꢃ
ꢀꢁꢀ
OFF
ꢄꢀ
LIMIT. SETPOINT
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢃ
LIMIT. RETURN PNT
LIMIT. ENERGIZE
SIGNAL>SETPOINT
SIGNAL<SETPOINT
SIGNAL INSIDE
SIGNAL OUTSIDE
ON
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢃ
ꢃ
ꢄꢀ
LIMIT. LATCHING
ꢂꢀ
ꢃ
ꢀꢁꢀ
ꢄꢀ
OFF
LIMIT. CHANNEL
LIMIT. SOURCE
ꢂꢀ
ꢂꢀ
ꢃ
TRACK
PEAK
ꢀꢁꢀ
ꢂꢀ
VALLEY
ꢃ
ꢄꢀ
LEAVE MENU
ꢄꢀ
Table 7-13: SERIAL COMMUNICATIONS Menu
SERIAL COM MENU
INTERFACE
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ADDRESS
BAUD RATE
AUTO LINE-FEED
TRANSMIT TEST
LEAVE MENU
Table 7-14: DISPLAY Menu for Models SC2000, SC2001
DISPLAY MENU
UPPER CHANNEL
ꢀꢁꢀ
LOWER CHANNEL
LOWER MODE
ꢂꢀ
ꢂꢀ
ꢃ
BLANK
ꢀꢁꢀ
ꢂꢀ
LIMITS 01-04
CHANNEL
ON
ꢃ
ꢄꢀ
DISPLAY DISABLE
LEAVE MENU
ꢂꢀ
ꢃ
ꢀꢁꢀ
ꢄꢀ
OFF
ꢄꢀ
Table 7-15: DISPLAY Menu for Model SC3004
DISPLAY MENU
POWERON CHANNEL
LEAVE MENU
ꢀꢁꢀ
ꢄꢀ
page 160
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Table 7-16: Strain Gage Input Channel Menu
CHANNEL xx MENU
OPERATION
AUTO-ZERO
ON
ꢀꢁꢀ
ꢃ
ꢀꢁꢀ
ꢃ
ꢀꢁꢀ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
ꢄꢀ
OFF
FREQ. RESPONSE
002. HERTZ/FAST
002. HERTZ
008. HERTZ
016. HERTZ
032. HERTZ
050. HERTZ
100. HERTZ
250. HERTZ
500. HERTZ
800. HERTZ
TRACK
ꢃ
ꢂꢀ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
POWER-ON SOURCE
ꢃ
ꢂꢀ
ꢃ
PEAK
ꢃ
VALLEY
ꢃ
ꢃ
LEAVE SUB-MENU
DISPLAY. DIGITS
ꢃ
ꢄꢀ
ꢀꢁꢀ
ꢃ
DISPLAY SETUP
5 DIGIT-BIPOLAR
6 DIGIT-UNIPOLAR
7 DIGIT-UNIPOLAR
99999.
ꢂꢀ
ꢃ
ꢀꢁꢀ
ꢂꢀ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢃ
ꢃ
DISPLAY. DECPT
ꢃ
ꢂꢀ
ꢃ
9999.9
ꢃ
999.99
ꢃ
ꢃ
99.999
ꢃ
ꢃ
9.9999
ꢃ
ꢃ
.99999
ꢃ
ꢃ
DISPLAY. COUNTBY
00001
ꢃ
ꢂꢀ
ꢃ
00002
ꢃ
00005
ꢃ
ꢃ
00010
ꢃ
ꢃ
00020
ꢃ
ꢃ
00050
ꢃ
ꢃ
00100
ꢃ
ꢃ
00200
ꢃ
ꢃ
DISPLAY. UNITS
ꢃ
ꢂꢀ
ꢃ
DISPLAY. AVERAGE
ON
ꢃ
ꢀꢁꢀ
ꢄꢀ
OFF
ꢃ
ꢃ
LEAVE SUB-MENU
DISABLED
ꢃ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
page 59
page 59
AUX1 FUNCTION
AUX2 FUNCTION
CALIBRATION TYPE
ꢂꢀ
ꢃ
TRACK HOLD
HIGH/LOW HOLD
HIGH/LOW CLEAR
TARE ON
ꢃ
ꢃ
ꢃ
TARE OFF
ꢃ
DISABLED
ꢂꢀ
ꢃ
TRACK HOLD
HIGH/LOW HOLD
HIGH/LOW CLEAR
TARE ON
ꢃ
ꢃ
ꢃ
TARE OFF
ꢃ
TYPE=SHUNT CAL
TYPE=MV/V CAL
ꢂꢀ
ꢃ
SC Series Instruction Manual page 161
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Table 7-16: Strain Gage Input Channel Menu (Continued)
TYPE=2 POINT CAL
ꢃ
ꢂꢀ
TYPE=3 POINT CAL
ꢃ
ꢂꢀ
TYPE=5 POINT CAL
ꢃ
ꢄꢀ
(menu varies with
calibration type)
CALIBRATION DATA
EXCITATION
ꢂꢀ
ꢃ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
FULL-SCALE MV/V
FULL-SCALE VALUE
ZERO-SCALE VALUE
SHUNT CAL VALUE
ꢃ
ꢃ
ꢃ
KNOWN LOAD POINT 1/5
KNOWN LOAD POINT 2/5
KNOWN LOAD POINT 3/5
KNOWN LOAD POINT 4/5
KNOWN LOAD POINT 5/5
LEAVE SUB-MENU
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
CALIBRATE
DAC SETUP
ꢂꢀ
ꢂꢀ
ꢃ
DAC. CHANNEL
DAC. SOURCE
ꢀꢁꢀ
ꢂꢀ
ꢃ
TRACK
ꢀꢁꢀ
PEAK
ꢃ
ꢂꢀ
VALLEY
ꢃ
ꢃ
ꢄꢀ
DAC. ZERO-SCALE
DAC. FULL-SCALE
LEAVE SUB-MENU
UPDATE SIG.MOD?
ꢃ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢀꢁꢀ
ꢃ
ꢃ
ꢃ
SIGNATURE MODULE
NO
ꢂꢀ
ꢃ
ꢀꢁꢀ
YES
ꢄꢀ
DEFAULT SIG.MOD?
UPDATE DAC SETUP?
LEAVE SUB-MENU
NO
ꢃ
ꢂꢀ
ꢃ
ꢀꢁꢀ
YES
ꢃ
ꢄꢀ
NO
ꢃ
ꢂꢀ
ꢃ
ꢀꢁꢀ
YES
ꢃ
ꢄꢀ
ꢃ
ꢄꢀ
ꢃ
DIAGNOSTICS
DAC FULL SCALE
DAC ZERO SCALE
VERSION INFO
DISPLAY ADC
ꢂꢀ
ꢃ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢃ
ꢃ
ON
ꢃ
ꢀꢁꢀ
OFF
ꢃ
ꢄꢀ
LINEARIZATION
DISABLE CHANNEL
LEAVE SUB-MENU
ON
ꢃ
ꢂꢀ
ꢃ
ꢀꢁꢀ
OFF
ꢃ
ꢄꢀ
ON
ꢃ
ꢂꢀ
ꢃ
ꢀꢁꢀ
OFF
ꢃ
ꢄꢀ
ꢃ
ꢄꢀ
LEAVE MENU
ꢄꢀ
page 162
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Table 7-17: AC-AC LVDT Input Channel Menu
CHANNEL xx MENU
OPERATION
AUTO-ZERO
ON
ꢀꢁꢀ
ꢃ
ꢀꢁꢀ
ꢃ
ꢀꢁꢀ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
ꢄꢀ
OFF
FREQ. RESPONSE
002. HERTZ/FAST
002. HERTZ
008. HERTZ
016. HERTZ
032. HERTZ
050. HERTZ
100. HERTZ
250. HERTZ
500. HERTZ
800. HERTZ
TRACK
ꢃ
ꢂꢀ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
POWER-ON SOURCE
ꢃ
ꢂꢀ
ꢃ
PEAK
ꢃ
VALLEY
ꢃ
ꢃ
LEAVE SUB-MENU
DISPLAY. DIGITS
ꢃ
ꢄꢀ
ꢀꢁꢀ
ꢃ
DISPLAY SETUP
5 DIGIT-BIPOLAR
6 DIGIT-UNIPOLAR
7 DIGIT-UNIPOLAR
99999.
ꢂꢀ
ꢃ
ꢀꢁꢀ
ꢂꢀ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢃ
ꢃ
DISPLAY. DECPT
ꢃ
ꢂꢀ
ꢃ
9999.9
ꢃ
999.99
ꢃ
ꢃ
99.999
ꢃ
ꢃ
9.9999
ꢃ
ꢃ
.99999
ꢃ
ꢃ
DISPLAY. COUNTBY
00001
ꢃ
ꢂꢀ
ꢃ
00002
ꢃ
00005
ꢃ
ꢃ
00010
ꢃ
ꢃ
00020
ꢃ
ꢃ
00050
ꢃ
ꢃ
00100
ꢃ
ꢃ
00200
ꢃ
ꢃ
DISPLAY. UNITS
ꢃ
ꢂꢀ
ꢃ
DISPLAY. AVERAGE
ON
ꢃ
ꢀꢁꢀ
ꢄꢀ
OFF
ꢃ
ꢃ
LEAVE SUB-MENU
DISABLED
ꢃ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
page 85
page 85
AUX1 FUNCTION
AUX2 FUNCTION
CALIBRATION TYPE
ꢂꢀ
ꢃ
TRACK HOLD
HIGH/LOW HOLD
HIGH/LOW CLEAR
TARE ON
ꢃ
ꢃ
ꢃ
TARE OFF
ꢃ
DISABLED
ꢂꢀ
ꢃ
TRACK HOLD
HIGH/LOW HOLD
HIGH/LOW CLEAR
TARE ON
ꢃ
ꢃ
ꢃ
TARE OFF
ꢃ
TYPE=2 POINT CAL
TYPE=3 POINT CAL
ꢂꢀ
ꢃ
SC Series Instruction Manual page 163
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Table 7-17: AC-AC LVDT Input Channel Menu (Continued)
TYPE=5 POINT CAL
ꢃ
ꢄꢀ
CALIBRATION DATA
FULL SCALE VRMS
ꢂꢀ
ꢃ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
KNOWN LOAD POINT 1/5
KNOWN LOAD POINT 2/5
KNOWN LOAD POINT 3/5
KNOWN LOAD POINT 4/5
KNOWN LOAD POINT 5/5
LEAVE SUB-MENU
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
CALIBRATE
DAC SETUP
ꢂꢀ
ꢂꢀ
ꢃ
DAC. CHANNEL
DAC. SOURCE
ꢀꢁꢀ
ꢂꢀ
ꢃ
TRACK
PEAK
ꢀꢁꢀ
ꢂꢀ
ꢃ
VALLEY
ꢃ
ꢃ
ꢄꢀ
DAC. ZERO-SCALE
DAC. FULL-SCALE
LEAVE SUB-MENU
ꢃ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢃ
ꢃ
ꢃ
DIAGNOSTICS
DAC FULL SCALE
DAC ZERO SCALE
VERSION INFO
DISPLAY ADC
ꢂꢀ
ꢃ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢃ
ꢃ
ON
ꢃ
ꢀꢁꢀ
ꢄꢀ
OFF
ON
ꢃ
LINEARIZATION
LEAVE SUB-MENU
ꢃ
ꢂꢀ
ꢃ
ꢀꢁꢀ
ꢄꢀ
OFF
ꢃ
ꢃ
ꢄꢀ
LEAVE MENU
ꢄꢀ
page 164
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Table 7-18: High-Level Input Channel Menu
CHANNEL xx MENU
OPERATION
AUTO-ZERO
ON
ꢀꢁꢀ
ꢃ
ꢀꢁꢀ
ꢃ
ꢀꢁꢀ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
ꢄꢀ
OFF
FREQ. RESPONSE
002. HERTZ/FAST
002. HERTZ
008. HERTZ
016. HERTZ
032. HERTZ
050. HERTZ
100. HERTZ
250. HERTZ
500. HERTZ
800. HERTZ
TRACK
ꢃ
ꢂꢀ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
POWER-ON SOURCE
ꢃ
ꢂꢀ
ꢃ
PEAK
ꢃ
VALLEY
ꢃ
ꢃ
LEAVE SUB-MENU
DISPLAY. DIGITS
ꢃ
ꢄꢀ
ꢀꢁꢀ
ꢃ
DISPLAY SETUP
5 DIGIT-BIPOLAR
6 DIGIT-UNIPOLAR
7 DIGIT-UNIPOLAR
99999.
ꢂꢀ
ꢃ
ꢀꢁꢀ
ꢂꢀ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢃ
ꢃ
DISPLAY. DECPT
ꢃ
ꢂꢀ
ꢃ
9999.9
ꢃ
999.99
ꢃ
ꢃ
99.999
ꢃ
ꢃ
9.9999
ꢃ
ꢃ
.99999
ꢃ
ꢃ
DISPLAY. COUNTBY
00001
ꢃ
ꢂꢀ
ꢃ
00002
ꢃ
00005
ꢃ
ꢃ
00010
ꢃ
ꢃ
00020
ꢃ
ꢃ
00050
ꢃ
ꢃ
00100
ꢃ
ꢃ
00200
ꢃ
ꢃ
DISPLAY. UNITS
ꢃ
ꢂꢀ
ꢃ
DISPLAY. AVERAGE
ON
ꢃ
ꢀꢁꢀ
ꢄꢀ
OFF
ꢃ
ꢃ
LEAVE SUB-MENU
DISABLED
ꢃ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
page 112
page 112
AUX1 FUNCTION
AUX2 FUNCTION
CALIBRATION TYPE
ꢂꢀ
ꢃ
TRACK HOLD
HIGH/LOW HOLD
HIGH/LOW CLEAR
TARE ON
ꢃ
ꢃ
ꢃ
TARE OFF
ꢃ
DISABLED
ꢂꢀ
ꢃ
TRACK HOLD
HIGH/LOW HOLD
HIGH/LOW CLEAR
TARE ON
ꢃ
ꢃ
ꢃ
TARE OFF
ꢃ
TYPE=SHUNT CAL
TYPE=2 POINT CAL
ꢂꢀ
ꢃ
SC Series Instruction Manual page 165
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Table 7-18: High-Level Input Channel Menu (Continued)
TYPE=3 POINT CAL
ꢃ
ꢂꢀ
TYPE=5 POINT CAL
ꢃ
ꢄꢀ
FULL-SCALE VOLT/CURR(menu varies with
CALIBRATION DATA
ꢂꢀ
ꢃ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
calibration type)
FULL-SCALE VALUE
ZERO-SCALE VALUE
ꢃ
SHUNT CAL VALUE
ꢃ
KNOWN LOAD POINT 1/5
KNOWN LOAD POINT 2/5
KNOWN LOAD POINT 3/5
KNOWN LOAD POINT 4/5
KNOWN LOAD POINT 5/5
LEAVE SUB-MENU
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
CALIBRATE
DAC SETUP
ꢂꢀ
ꢂꢀ
ꢃ
DAC. CHANNEL
DAC. SOURCE
ꢀꢁꢀ
ꢂꢀ
ꢃ
TRACK
ꢀꢁꢀ
PEAK
ꢃ
ꢂꢀ
VALLEY
ꢃ
ꢃ
ꢄꢀ
DAC. ZERO-SCALE
DAC. FULL-SCALE
LEAVE SUB-MENU
ꢃ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢃ
ꢃ
ꢃ
DIAGNOSTICS
DAC FULL SCALE
DAC ZERO SCALE
VERSION INFO
DISPLAY ADC
ꢂꢀ
ꢃ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢃ
ꢃ
ON
ꢃ
ꢀꢁꢀ
OFF
ꢃ
ꢄꢀ
LINEARIZATION
DISABLE CHANNEL
LEAVE SUB-MENU
ON
ꢃ
ꢂꢀ
ꢃ
ꢀꢁꢀ
OFF
ꢃ
ꢄꢀ
ON
ꢃ
ꢂꢀ
ꢃ
ꢀꢁꢀ
OFF
ꢃ
ꢄꢀ
ꢃ
ꢄꢀ
LEAVE MENU
ꢄꢀ
page 166
008-0608-00
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Table 7-19: Relay Output Channel
RELAY 1
CHANNEL xx MENU
DIAGNOSTICS
ON
ꢀꢁꢀ
ꢃ
ꢀꢁꢀ
ꢀꢁꢀ
ꢄꢀ
OFF
ON
ꢃ
RELAY 2
ꢃ
ꢂꢀ
ꢀꢁꢀ
ꢄꢀ
OFF
ON
ꢃ
ꢃ
RELAY 3
ꢃ
ꢂꢀ
ꢀꢁꢀ
ꢄꢀ
OFF
ON
ꢃ
ꢃ
RELAY 4
ꢃ
ꢂꢀ
ꢀꢁꢀ
ꢄꢀ
OFF
ꢃ
ꢃ
LEAVE SUB-MENU
ꢃ
ꢄꢀ
LEAVE MENU
ꢄꢀ
Table 7-20: DAC Output Channel Menu
CHANNEL xx MENU
DAC SETUP
DAC. CHANNEL
ꢀꢁꢀ
ꢃ
ꢀꢁꢀ
DAC. SOURCE
TRACK
PEAK
ꢂꢀ
ꢀꢁꢀ
ꢂꢀ
ꢃ
ꢃ
ꢃ
VALLEY
ꢃ
ꢄꢀ
DAC. ZERO-SCALE
ꢃ
ꢂꢀ
DAC. FULL-SCALE
ꢃ
ꢂꢀ
LEAVE SUB-MENU
ꢃ
ꢄꢀ
DIAGNOSTICS
LEAVE MENU
DAC FULL SCALE
DAC ZERO SCALE
LEAVE SUB-MENU
ꢂꢀ
ꢃ
ꢀꢁꢀ
ꢂꢀ
ꢃ
ꢄꢀ
ꢄꢀ
Table 7-21: Split Display Virtual Channel
CHANNEL xx MENU
LEFT CHANNEL
ꢀꢁꢀ
ꢂꢀ
ꢃ
LEFT SOURCE
TRACK
PEAK
ꢀꢁꢀ
ꢂꢀ
VALLEY
ꢃ
ꢄꢀ
RIGHT CHANNEL
RIGHT SOURCE
ꢂꢀ
ꢂꢀ
ꢃ
TRACK
PEAK
ꢀꢁꢀ
ꢂꢀ
VALLEY
ꢃ
ꢄꢀ
LEAVE MENU
ꢄꢀ
SC Series Instruction Manual page 167
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Table 7-22: Mathematics Virtual Channel
(item name may vary)
(item name may vary)
(item name may vary)
CHANNEL xx MENU
SENSOCODE P/N
ꢀꢁꢀ
ꢂꢀ
ꢃ
USER VALUES
USER VALUE 1
USER VALUE 2
USER VALUE 3
USER VALUE 4
LEAVE SUB-MENU
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢃ
ꢃ
ꢃ
VIEW SENSOCODE
VIEW COMMANDS
ꢂꢀ
ꢂꢀ
ꢃ
COMMAND 0
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
ꢀꢁꢀ
ꢃ
COMMAND 1
COMMAND 2
ꢃ
COMMAND 3
ꢃ
COMMAND 4
ꢃ
COMMAND 5
ꢃ
COMMAND 6
ꢃ
COMMAND 7
ꢃ
LEAVE SUB-MENU
DISPLAY. DIGITS
ꢃ
5 DIGIT-BIPOLAR
DISPLAY SETUP
ꢂꢀ
ꢃ
ꢀꢁꢀ
6 DIGIT-UNIPOLAR
ꢂꢀ
7 DIGIT-UNIPOLAR
ꢃ
ꢃ
ꢄꢀ
DISPLAY. DECPT
99999.
ꢃ
ꢂꢀ
ꢃ
ꢀꢁꢀ
9999.9
ꢃ
ꢂꢀ
999.99
ꢃ
ꢃ
ꢂꢀ
99.999
ꢃ
ꢃ
ꢂꢀ
9.9999
ꢃ
ꢃ
ꢂꢀ
.99999
ꢃ
ꢃ
ꢄꢀ
DISPLAY. COUNTBY
00001
ꢃ
ꢂꢀ
ꢃ
ꢀꢁꢀ
00002
ꢃ
ꢂꢀ
00005
ꢃ
ꢃ
ꢂꢀ
00010
ꢃ
ꢃ
ꢂꢀ
00020
ꢃ
ꢃ
ꢂꢀ
00050
ꢃ
ꢃ
ꢂꢀ
00100
ꢃ
ꢃ
ꢂꢀ
00200
ꢃ
ꢃ
ꢄꢀ
DISPLAY. UNITS
ꢃ
ꢂꢀ
ꢃ
DISPLAY. AVERAGE
ON
ꢃ
ꢀꢁꢀ
OFF
ꢃ
ꢃ
ꢄꢀ
LEAVE SUB-MENU
TRACK
ꢃ
ꢄꢀ
ꢀꢁꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢂꢀ
ꢄꢀ
POWER-ON SOURCE
ꢂꢀ
ꢃ
PEAK
VALLEY
ꢃ
(SC3004 only)
(SC3004 only)
(SC3004 only)
TRACK / PEAK
TRACK / VALLEY
PEAK / VALLEY
ꢃ
ꢃ
ꢃ
LEAVE MENU
ꢄꢀ
page 168
008-0608-00
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Index
A
C
calibration
case removal
channel
OVLD message 95
Analog Output
connectors
auto-zero function
Auxilliary Function pins
D
display
B
averaging
buttons
decimal points
SC Series Instruction Manual - Model SC500 page 169
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OVLD message
units of measure
I
indicator lights
E
EMI/RFI interference
excitation
L
limits
F
frequency response
fuse replacement
LVDT Input channel
H
M
OVLD message 122
O
page 170
008-0671-00
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OVLD message
SETUP menu mode
P
panel mounting
Signature Calibration
software revision
Peak/Valley values
Q
specifications
R
rack mounting
resolution
RS-232
step response time
Strain-Gage Input channel
RS-485
OVLD message 77
S
SC Series
SC Series Instruction Manual - Model SC500 page 171
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U
System Connector
V
W
wiring
T
Tare
troubleshooting
page 172
008-0671-00
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Warranty
Honeywell warrants goods of its manufacture as being free of defective materials
and faulty workmanship. Contact your local sales office for warranty information.
If warranted goods are returned to Honeywell during the period of coverage, Hon-
eywell will repair or replace without charge those items it finds defective. The
foregoing is the Buyer’s sole remedy and is in lieu of all other warranties,
expressed or implied, including those of merchantability and fitness for a particular
purpose.
Specifications may change without notice. The information we supply is believed
to be accurate and reliable as of this printing. However, we assume no responsi-
bility for its use.
While we provide applications assistance personally, through our literature and
the Honeywell web site, it is up to the customer to determine the suitability of the
product in the application.
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Honeywell Automation and Control Solutions
Sensotec Sensors
2080 Arlingate Lane
Columbus, Ohio 43228-4112
Tel: (614)850-5000
Fax: (614)850-1111
E-mail: [email protected]
http://www.honeywell.com/sensotec
Document Number 008-0608-00 Printed in USA
© Copyright 2005 Honeywell International Inc.
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