Omega Speaker Systems All in One Printer DRX ACC User Manual

UserÕs Guide  
®
DRX-ACC, DRX-ACV, DRX-FP,  
DRX-PR, DRX-RTD, DRX-ST,  
DRX-TC  
Communication Manual for  
DRX Signal Conditioner Series  
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TABLE OF CONTENTS  
I.  
WHAT SIGNAL CONDITIONERS DO: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
MODEL OF UNIT : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
RS485 SERIAL COMMUNICATION SETUP: . . . . . . . . . . . . . . . . . . . . . . . . .  
SAFETY CONSIDERATIONS: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
COMMANDS FOR ACCESSING EEPROM: . . . . . . . . . . . . . . . . . . . . . . . . . .  
DESCRIPTION OF DATA : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1
1
1
4
6
7
II.  
III.  
IV.  
V.  
VI.  
VII.  
VIII.  
IX.  
COMMANDS FOR MEASUREMENT VALUES: . . . . . . . . . . . . . . . . . . . . . 16  
COMMANDS FOR READING MODEL/INPUT TYPE: . . . . . . . . . . . . . . . 16  
RESET COMMANDS: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17  
SAMPLE PROGRAM: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17  
SPECIFICATIONS  
DRX-ACC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19  
DRX-ACV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20  
DRX-FP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21  
DRX-PR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22  
DRX-RTD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23  
DRX-ST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24  
DRX-TC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25  
ILLUSTRATIONS:  
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
Typical Computer Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
i
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NOTES  
ii  
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I. WHAT SIGNAL CONDITIONERS DO:  
The DRX Series Signal Conditioners are high performance devices used as a front end for PLC’s and  
Data Acquisition systems to measure a variety of low level transducer signals with high precision and  
accuracy. The DRX Series Signal Conditioners interface directly to transducers and digitize the input  
signal. The measured signal is then transmitted to a PLC or a computer using the RS485 Serial  
Communication. Up to 32 units may be connected to the same serial RS485 bus, and each unit may  
be addressed to transmit the signal being measured under program control, executed on a PLC or a  
computer. The key features of the DRX Series Signal Conditioners are the ease of set-up and factory  
calibrated ranges. All range switching are done electronically by sending the appropriate command;  
therefore, there is no need to remove or open the units when signal input levels are changed. All set-  
up may be done by using the Set-up Software running on a computer or by user supplied programs.  
II. MODEL OF UNIT :  
There are 7 models available:  
THERMOCOUPLE  
RTD  
STRAIN  
PROCESS  
FREQUENCY/PULSE  
AC VOLT  
( DRX-TC )  
( DRX-RTD )  
( DRX-ST )  
( DRX-PR )  
( DRX-FP )  
( DRX-ACV )  
( DRX-ACC )  
AC CURRENT  
III. RS485 SERIAL COMMUNICATION SETUP:  
Communication with the UNIT will be performed via serial communication using RS485 standard  
(half duplex). To use the RS485 communication for the Signal Conditioners you’ll need an available  
Communication port in your computer and have access to a generic communication software program  
1
2
3
(e.g.: Procomm , Windows HyperTerminal , etc, see details below for information). A RS485 signal  
conditioner communication software program is also available as an option to speed the set-up.  
A
RS232 to RS485 converter box will also be required if your computer communications port is RS232.  
1
Procomm is a registered trademark of Datastorm Technologies, Inc.  
2
Windows is a registered trademark of Microsoft Corp.  
3
HyperTerminal is a registered trademark of Microsoft Corp.  
Page 1  
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For Procomm:  
Start the Procomm Program.  
Press ALT + P (Select the appropriate communication parameters: Baud Rate, Parity, Data  
Bits, Stop Bits.) The default settings may require modifications.  
- Factory Default communication settings are as follows:  
Baud Rate = 9600  
Parity = Odd  
Data Bits = 7  
Stop Bits = 1  
Press ALT + S (To save current communication settings)  
Press ALT + O (To go to chat mode)  
If the communication port selected is available and the communication parameters of both  
the computer and the DRX are matched, then a serial link may be established. To check the  
communication any of the commands may be tried i.e. *01X01 would return the current  
measured signal value.  
For Hyper Terminal (Windows 95):  
Start the Hyper Terminal Program from programs/accessories.  
Click on the Properties from the File menu.  
Under the Phone Number Menu choose:  
Connect using “Direct to COM1 or COM2” whichever that’s available.  
Click on Configure Button.  
Choose:  
Baud rate, Data bits, Parity and Stop bits  
According to DRX’s settings.  
Flow Control = None.  
Click “OK” Button.  
- Factory Default communication settings are as follows:  
Baud Rate = 9600  
Parity = Odd  
Data Bits = 7  
Stop Bits = 1  
Under Settings Menu:  
Click ASCII Setup Button.  
Choose all options except “Force Incoming Data to 7 Bits ASCII”.  
Click “OK” Button.  
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DRX -- SIGNAL CONDITIONERS WITH RS485  
SERIAL COMMUNICATION PORT  
RS232 TO  
RS485 CONVERTER  
HALF—DUPLEX  
COMPUTER  
NOTE: YOU CAN CONNECT A DRX  
DIRECTLY TO THE COMPUTER IF YOU  
HAVE A RS485 COMMUNICATION  
CONNECT LAST  
UNIT WITH  
SYSTEM GND  
OR SHIELD  
CARD INSTALLED IN THE COMPUTER.  
JUMPER TO  
INCLUDE 120  
ON THE BUS  
TEE COUPLER  
(JACKS SHOWN  
FOR CLARITY)  
SHIELDED WIRE  
DIN RAIL  
FIRST UNIT ON BUS  
LAST UNIT ON BUS  
Communication Parameter Settings:  
Communication settings information are very critical during set-up, if any of the parameters are  
changed, it should be recorded on the label for future reference. If the communication parameters  
used by the computer does not match the communication parameter of the DRX, then the  
communication link may not be established. Hence it is important to record the communication  
parameter on the label if different from default.  
Resetting Communication Parameters to Factory Defaults  
To restore the communication parameters to the factory default settings, two test points must be  
shorted together. There are two ways of shorting these test points together, both are detailed below.  
Version A-- Test point TP6 must be shorted, by a wire, to test point TP17.  
or  
Version B-- Newer units have a jumper position S1-A for connecting these two test points together.  
Factory Default Settings for Communication:  
Baud Rate = 9600  
Data Bit = 7  
Parity = Odd  
Stop Bits = 1  
Recognition Character  
Address = 01  
=
*
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SAFETY CONSIDERATIONS  
This device is marked with the international Caution symbol. It is important to read  
this manual before installing or commissioning this device as it contains important  
information relating to Safety and EMC (Electromagnetic Compatibility).  
Unpacking & Inspection  
Unpack the instrument and inspect for obvious shipping damage. Do not attempt to  
operate the unit if damage is found.  
For instruments with AC Voltage and AC Current inputs, observe the input signal  
connections in the appropriate section of this manual. These instruments must only  
be installed by professional electricians.  
Do not exceed voltage rating on the label located on the instrument housing.  
Always disconnect power before changing signal and power connections.  
Do not use this instrument on a work bench without its case for safety reasons.  
Do not operate this instrument in flammable or explosive atmospheres.  
Do not expose this instrument to rain or moisture.  
Unit mounting should allow for adequate ventilation to ensure instrument does  
not exceed operating temperature rating.  
Use electrical wires with adequate size to handle mechanical strain and power  
requirements. Install without exposing bare wire outside the connector to  
minimize electrical shock hazards.  
EMC Considerations  
Whenever EMC is an issue, always use shielded cables.  
Never run signal and power wires in the same conduit.  
Use signal wire connections with twisted-pair cables.  
Install Ferrite Bead(s) on signal wires close to the instrument if EMC problems  
persist.  
Failure to follow all instructions and warnings may result in injury!  
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SAFETY NOTE: Disconnect all signal input and outputs before attempting this procedure.  
Instructions  
1) Open the Signal Conditioner Unit—Remove Side Covers from Unit by lifting at the “angled  
corners” first, using a flat-head screwdriver. Continue detaching remaining edges of the Cover.  
2) Short TP6 & TP17 together, either by wire or, if available, jumper S1-A.  
3) After shorting TP6 to TP17, apply power to the unit.  
4) The Front Panel Power Indicator (LED) will NOT turn on.  
5) After power has been applied to the unit for about 30 seconds, turn power off.  
6) The communication parameters now have been restored to the default settings.  
7) Use the DRX Set-up Program to establish communication with the meter.  
8) This procedure will not affect calibration. It only resets the communication parameters.  
Lift Cover at Angled Corners.  
Side Cover  
Remove to  
Access  
Testpoints.  
Front Panel  
Side Cover  
Remove to  
Access S1-A  
Jumper  
Lift Cover at Angled Corners.  
Six Attachments Per Side  
Opening Unit  
Solder wire from  
TP6 to TP17 on  
Solder side of Board.  
Install Jumper onto  
S1-A on Component  
Side of Board.  
Version A  
Version B  
Testpoint/Jumper Locations  
Page 5  
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IV. COMMANDS FOR ACCESSING EEPROM:  
NO. command letter index  
meaning  
# of bytes  
1
1.  
R,W  
R,W  
R,W  
R,W  
R,W  
R,W  
R,W  
R,W  
R,W  
R,W  
R,W  
R,W  
R,W  
R,W  
R,W  
01  
02  
03  
04  
05  
06  
07  
08  
09  
0A  
0B  
0C  
0D  
0E  
0F  
Input range or function  
Input/output Configuration  
Decimal point  
Filter time constant  
Reading scale  
Reading offset  
Communication parameters  
Communication bus format  
Communication Data format  
Communication device address  
Communication recog. char.  
Unit of measure  
2.  
3.  
4.  
5.  
6.  
7.  
8.  
9.  
1
1
1
3
3
1
1
1
1
1
3
1
1
2
10.  
11.  
12.  
13.  
14.  
15.  
Gate time  
Debounce time  
Transmit time  
NOTE:  
1.  
Data (Number of hex digits) = 2 * number of bytes  
2. command letter meaning  
R
W
Read from EEPROM  
Write to EEPROM  
3.  
"W" commands should be followed by "Z01" command for new values to take effect.  
A.  
B.  
COMMAND FORMAT (TRANSMITTING):  
*[nn]Cxx[data][hh]<cr>  
Note: Data is required if Command Letter is “W”  
RESPONSE FORMAT (RECEIVING):  
A. Correct response :  
1. If unit is in echo mode* (see "BUS FORMAT") :  
[nn]Cxx[data][hh]<cr>  
*echo mode = unit will send back the command.  
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2. If unit is not in echo mode :  
i. For the commands which require the data to be transmitted by the DRX Signal  
Conditioner, data is sent in the following formats:  
data[hh]<cr>  
ii. For the commands which do not require the data:  
NO RESPONSE  
B. Error response:  
1. If unit is in echo mode:  
[nn]?ee<cr>  
2. If unit is not in echo mode:  
?ee<cr>  
NOTE :  
[ ]  
*
:
:
:
Means will be used wherever applicable.  
Is the security recognition character(default is “*”).  
nn  
Is the unit's address in hexadecimal(default is 01).  
Address may be from 01 to FF.  
C
W
:
:
:
:
:
Is the command letter ( must be capital ).  
For writing to the EEPROM (requires data)  
R
For reading from the EEPROM (doesn’t require data)  
Command index is a hexadecimal number from 01 to FF.  
xx  
data  
Is one, two, or three bytes (2,4,6 characters respectively). It will be in  
hexadecimal format except when command "X" is executed in which case it  
is in decimal format.  
hh  
:
Is checksum characters  
( Required if Checksum option is on. See “BUS FORMAT).  
The checksum is one byte (two characters) that is the simple hexadecimal  
addition of all the previous bytes, ignoring any overflow.  
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?ee  
:
Special code indicating an error has occurred as:  
?43  
:
Command error  
( occurs if command letters and indexes are invalid)  
?46  
?48  
?50  
:
:
:
:
Format error  
( occurs if length of the data or number of characters is not correct )  
Checksum error  
( occurs if checksum is not correct )  
Parity error  
( occurs if parity is not correct )  
<cr>  
Carriage return  
Note:  
If Baud rate, Recognition character or address are not correct then the UNIT will not  
respond.  
V.  
DESCRIPTION OF DATA :  
For the following Bit Pattern. The LSB is always bit 0. Bit numbers are always counted from  
right to left, with the rightmost digit being bit 0, and the next to the left would be bit 1.  
1. INPUT RANGE:  
This is one byte data (2 characters). This byte will specify input range and other input  
configurations of each model. Bit pattern for different models :  
a. INPUT RANGE BYTE VALUE  
TC  
ACV  
ACC  
Bits:3210  
0000  
0001  
0010  
0011  
J
K
T
E
400 mV ac  
4 V ac  
40 V ac  
400 V ac  
----  
10 mA  
100 mA  
1 A  
5 A  
----  
0100  
N
0101  
DIN J  
----  
----  
0110  
0111  
R
S
----  
----  
----  
----  
1000  
B
----  
----  
(1001-1111 not used )  
Bit 6-4: not used  
Bit 7:  
0
1
Line frequency = 60Hz  
Line frequency = 50Hz  
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b. INPUT RANGE BIT NO. VALUE  
RTD  
Bits:  
1-0  
00  
01  
10  
11  
100 ohms  
500 ohms  
1000 ohms  
10 ohms COPPER  
2
0
1
PLATINUM  
NICKEL  
3
0
1
DIN STANDARD  
NIST FOR Pt (SAMA FOR Ni)  
5-4  
00  
01  
10  
11  
2 wire  
3 wire  
4 wire  
not used  
6
7
not used  
0
1
Line frequency = 60Hz  
Line frequency = 50Hz  
c. INPUT RANGE BIT NO. VALUE  
PROCESS (PR)  
STRAIN (ST)  
3-0  
0000  
0001  
0010  
0-20 mA  
400 mV  
1 V  
30 mV  
100 mV  
---  
0011  
2 V  
---  
0100  
5 V  
---  
0101  
10 V  
---  
(0110 - 1111 not used)  
4
5
0
1
14V Excit.  
10V Excit.  
Internal excit.  
External excit.  
0
1
Non-ratiometric (PR,ST)  
Ratiometric (PR,ST)  
6
7
not used  
0
1
Line frequency = 60Hz(PR,ST)  
Line frequency = 50Hz(PR,ST)  
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d. INPUT RANGE BIT NO. VALUE  
FREQUENCY/PULSE (FP)  
0
0
1
----  
Low input level  
1
0
1
----  
Debounce contact  
2
0
1
----  
3K pull up to 5V  
3
0
1
----  
1K pull down  
5-4  
00  
01  
10  
11  
12.5V excit.  
5V excit.  
8V excit.  
not used  
7-6  
not used  
2. INPUT/OUTPUT CONFIGURATION:  
This is one byte data (2 characters).  
Bit pattern is:  
BIT NO. VALUE  
MEANING  
TC/RTD  
Degree C  
Degree F  
Degree K  
Degree K  
ACV/ACC/ST  
PR  
FP  
----  
Freq. mode  
----  
Freq. mode  
1-0  
00  
01  
10  
11  
----  
----  
----  
----  
Totalizer  
Totalizer  
2
0
1
Temp. compensation ----  
No temp compensation ----  
See Note 1  
See Note 1  
----  
Quadrature  
3
0
1
----  
----  
----  
----  
See Note 1  
See Note 1  
----  
A-B mode  
4
0
1
----  
----  
----  
----  
----  
----  
----  
Totalize mode  
5
0
1
----  
----  
----  
----  
----  
Square root  
----  
----  
7-6  
not used set to 0  
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Note 1:  
Bit 2&3 set the speed of process totalize. The time it would take process totalize to  
reach the non-totalize reading is shown in the following table:  
Bit 3  
Bit 2  
Time to reach regular reading  
0
0
1
1
0
1
0
1
1 minute  
1 hour  
1 day  
30 day  
3. DECIMAL POINT :  
This is one byte (2 characters) as:  
value  
meaning  
XXXXXX.  
XXXXX.X  
XXXX.XX  
XXX.XXX  
XX.XXXX  
X.XXXXX  
1
2
3
4
5
6
Note 1:  
For TC and RTD models, value must be 1 to 3 only.  
4. FILTER TIME CONSTANT:  
This is one byte (2 characters) as:  
value  
meaning (per no. of readings)  
0
1
2
3
4
5
6
7
No filtering  
2
4
8
16  
32  
64  
128  
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5. READING SCALE:  
Multiplication factor applied to input to get a higher or lower reading.  
This is 3 byte data (6 characters) as follows:  
- Bits 0 to 18 (19 bits) are value of the scale from 0 to 500000  
- Bit 19 is sign, 0 for positive and 1 for negative  
- Bits 20 to 23 are for decimal point value = DP  
It means as:  
Actual decimal value = 10 ** ( 1 - DP )  
where ** means "TO THE POWER OF"  
example: if scale is -0.000345678.= - 345678 x 10**(-9)  
value will be 345678 decimal = 5464E hex  
bit 19 =1 for negative  
bits 20-23 = DP = 10 = A hex  
then data will be AD464E hex  
6. READING OFFSET:  
Deviation applied to input to get a higher or lower reading.  
This is 3 byte data (6 characters) as follows:  
- Bits 0 to 19 are value from 0 to 1000000  
- Bit 23 is sign, 0 for positive, 1 for negative  
- Bits 20,21,22 are decimal point value = DP  
It means as :  
Actual decimal value = 10 ** ( 2 - DP )  
where ** means "TO THE POWER OF"  
example: offset value is 234.089  
value of 234089 decimal = 39269 hex  
decimal value = 10 ** (-3) then DP=5  
then 234.089 decimal = 539269 hex  
7. COMMUNICATION PARAMETERS:  
This is one byte data and specifies  
BAUD, PARITY, DATA, and STOP bit.  
BAUD =  
bits 2,1,0 are:  
000-001  
010  
011  
100  
101  
not used  
for 1200  
for 2400  
for 4800  
for 9600  
for 19200  
not used  
110  
111  
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PARITY = bits 4,3 and are:  
00  
01  
10  
11  
for NO  
for ODD  
for EVEN  
not used  
DATA BIT = bit 5 and is:  
0
1
for 7 data  
for 8 data  
STOP BIT = bit 6 and is:  
0
1
for 1 stop  
for 2 stop  
Bit 7 : always 0  
Note 1: Stop bit is always 1. Unless 7 data, no parity is selected then unit will use 2 stop bits.  
Note 2: When 8 Data bit is selected, only NO PARITY is allowed.  
8. BUS FORMAT:  
This is one byte data as:  
Bit 0 = 0/1 means checksum not included/included  
Bit 1  
Bit 2 = 0/1 means no echo/echo  
Bit 3 = 1 means 485 mode  
Bit 4 = 0/1 means continuous/command mode  
Bits 7-5 not used  
not used  
For models (PR/ST/FP):  
Bit 7 = 0/1 Enable/Disable peak and valley comparison  
NOTE 1 :  
NOTE 2 :  
ECHO mode means the unit will echo back the command letter and index.  
Do not use checksum option unless you have to use it.  
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9. DATA FORMAT:  
This is one byte and specifies the data which will be transmitted against the  
"V01" command.  
Bit pattern:  
bit 0 = 0/1  
bit 1 = 0/1  
Means do not include/include peak & valley status register.  
Means do not include/include reading.  
For models(TC/RTD/ACV/ACC):  
bit 2 = 0/1  
bit 2 = 0/1  
bit 3 = 0/1  
bit 3 = 0/1  
bits 4  
Means do not include/include peak reading.  
For models(PR/ST):  
Means do not include/include process totalize.  
For models(TC/RTD/ACV/ACC):  
Means do not include/include valley reading.  
For models(PR/ST/FP):  
Means do not include/include peak reading.  
For models(TC/RTD/ACV/ACC):  
Not used. Set to 0.  
For models(PR/ST/FP):  
bits 4 = 0/1  
bit 5  
Means do not include/include valley reading.  
Not used. Set to 0.  
bit 6 = 0/1  
bit 7 = 0/1  
Means do not include/include unit of measure.  
Means space/carriage return between values.  
10. DEVICE ADDRESS :  
This is one byte data and specifies the address of the unit when in RS485 multipoint mode.  
Addresses are in hexadecimal from 01 to FF.  
NOTE: Address 00 is for broadcasting. All units on the same BUS will perform any  
command with this address but will not respond.  
11. RECOGNITION CHARACTER:  
This is one byte security character.  
(Default is *)  
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12. UNIT OF MEASURE:  
This is 3 bytes. It is ASCII value of unit of measure.  
13. GATE TIME(For FP model only):  
This is 1 byte from 00 to FF.  
For value = 00 to FA:  
Each count equals 10ms. If 0 then gate time = 3ms.  
Example : 1 second gate time = 64 hex.  
For value = FB to FF:  
Value  
FB  
Gate time  
seconds  
5
FC  
FD  
FE  
10 seconds  
20 seconds  
40 seconds  
80 seconds  
FF  
14. DEBOUNCE TIME(For FP model only):  
This is 1 byte from 01 to FF.  
Each count equals 5ms. If 0 then error.  
15. TRANSMIT TIME:  
This is 2 bytes data in second and specifies the time of the transmission by the meter.  
Page 15  
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VI. COMMANDS FOR MEASUREMENT VALUES:  
Command Receiving value  
*01X01  
Note:  
(For all models):  
Reading value. After reading scale and offset.  
In order to have continuous update on reading. Customer  
should send X01 command every time reading is requested.  
Models(TC/RTD/ACV/ACC):  
*01X02  
*01X03  
Peak reading value.  
Valley reading.  
Models(PR/ST/FP):  
*01X03  
*01X04  
*01V01  
Peak reading value.  
Valley reading.  
(For all models): String of values.  
Received values are in decimal with decimal point and no sign for positive and minus sign  
for negative.  
Example : 00345.6 or -00345.6  
If value is overflowed a “?” will be transmitted along with value (?-99999. or ?999999).  
VII. COMMANDS FOR READING MODEL/INPUT TYPE:  
Command Receiving value  
*01U01  
One byte for model number  
VALUE  
00  
MODEL  
FP  
01  
PR  
02  
ST  
03  
TC  
04  
05  
06  
RTD  
ACV  
ACC  
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VIII. RESET COMMANDS :  
*01Z01 (For all models): Hard reset (reading data from EEPROM).  
*01Z02 (For all models): Soft reset (Initialize reading).  
*01Z03 (For models: TC/RTD/ACV/ACC): Reset peak and valley.  
(For models: PR/ST): Reset process totalize value.  
*01Z04 (For models: (PR/ST/FP): Reset peak value.  
*01Z05 (For models: PR/ST/FP): Reset valley value.  
*01Z07 (For models: TC/RTD/ACV/ACC): Reset peak only.  
*01Z08 (For models: TC/RTD/ACV/ACC): Reset valley only.  
NOTE:  
*
: Recognition character  
01(Follow “*”) : Address  
IX. SAMPLE PROGRAM:  
' ASSUMING :  
' BAUD RATE = 9600  
' PARITY  
= ODD  
' DATA BIT = 7  
' STOP BIT = 1  
' COMM PORT = 1  
' ADDRESS = 01  
' RECOG. CHAR = *  
' SERIAL PORT = COM1  
' FOR COMM PORT = 2 -> CHANGE "COM1:" TO "COM2:"  
' THIS PROGRAM WILL GET READING AND DISPLAY IT EVERY 1 SECOND  
ON ERROR GOTO ER  
ON TIMER(1) GOSUB RDG  
CLS  
CLOSE #1  
COLOR 1, 7  
LOCATE 22, 30  
PRINT "PRESS <ESC> TO END"  
OPEN "COM1:" + "9600,O,7,1,CS,DS" FOR RANDOM AS #1  
LOCATE 10, 30  
PRINT "READING = "  
TIMER ON  
DO: LOOP UNTIL INKEY$ = CHR$(27)  
Page 17  
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COLOR 7, 0  
CLS  
END  
RDG:  
PRINT #1, "*01X01"  
DAT1$ = ""  
DAT$ = ""  
T$ = TIME$  
T1$ = MID$(T$, LEN(T$) - 1, 2)  
T1 = VAL(T1$)  
DO  
IF LOC(1) > 0 THEN  
CNT = 0  
DAT1$ = INPUT$(LOC(1), #1)  
DAT$ = DAT$ + DAT1$  
ELSE  
T$ = TIME$  
T2$ = MID$(T$, LEN(T$) - 1, 2)  
T2 = VAL(T2$)  
IF T2 < T1 THEN T2 = T2 + 60  
IF T2 - T1 >= 2 THEN CNT = 1  
END IF  
LOOP UNTIL CNT = 1 OR INSTR(1, DAT$, CHR$(13)) > 0  
IF DAT$ = "" THEN  
LOCATE 5, 30  
COLOR 28  
PRINT "COMMUNICATION ERROR!"  
P = 1  
ELSE  
IF P = 1 THEN  
LOCATE 15, 30  
COLOR 7, 0  
PRINT "  
P = 0  
"
' (24 SPACES)  
END IF  
LOCATE 10, 40  
D$ = MID$(DAT$, 6)  
DAT$ = LEFT$(D$, LEN(D$) - 1)  
COLOR 1, 7  
PRINT DAT$; "  
END IF  
RETURN  
ER:  
RESUME NEXT  
"
' (2 SPACES)  
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WARM UP TO RATED ACCURACY:  
30 minutes  
DRX-ACC SPECIFICATIONS  
INPUT RANGES:  
INPUT POWER:  
10 to 32 Volt DC  
10 mA, 100 mA, 1 Amp, 5 Amp AC current  
Dedicated input terminals for (10, 100 mA same  
input), 1 Amp and 5 Amp. Return terminal common  
to all ranges.  
POWER CONSUMPTION:  
2.4 Watts (100 mA at 24 V DC)  
FREQUENCY RANGE:  
OPERATING AMBIENT:  
30 Hz to 1KHz  
-5 to +55 °C  
INPUT IMPEDANCE:  
STORAGE TEMPERATURE:  
3.3 Ohms for 10, 100 mA input  
0.2 Ohms for 1 Amp input  
0.04 Ohms for 5 Amp input  
-40 to +85 °C  
RELATIVE HUMIDITY:  
90% at 40 °C non-condensing  
ISOLATION:  
Dielectric strength to 1000 Vrms transient per  
1 minute test based on EN 61010 for 50 Vdc or Vrms  
working voltage.  
Three way Isolation:  
• Power to input  
• Power to analog output/communication  
• Input to analog output/communication  
INPUT OVER-CURRENT PROTECTION:  
10% Above full scale continuously  
100% Above full scale for 10 seconds  
ANALOG TO DIGITAL TECHNIQUE:  
Dual slope  
READ RATE:  
3 readings/second  
ACCURACY AT 25 °C:  
± 0.2% of FS from 30 Hz to 1 KHz  
TEMPERATURE STABILITY:  
10, 100 mA Range 100 ppm/°C typical  
1 Amp Range 150 ppm/°C typical  
5 Amp Range 200 ppm/°C typical  
1
2
RETURN  
5A  
STEP RESPONSE FOR RS485 OUTPUT:  
2 seconds to 99% of the final value  
(Filter time constant = 64)  
1A  
{
100mA  
SIGNAL INPUT  
D
C
RESPONSE TIME:  
P
W
R
To verify the response time, check the carriage return  
<CR>, it will be sent at the end of the response. You  
can send another command after you receive the  
<CR>.  
N/C  
+
-
i.e.  
send: *01X01  
response: 01X01<DATA><CR>  
Note: 01 is address.  
Page 19  
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WARM UP TO RATED ACCURACY:  
30 minutes  
DRX-ACV SPECIFICATIONS  
INPUT RANGES:  
400 mV, 4V, 40 Volt, 400 Volt  
INPUT POWER:  
10 to 32 Volt DC  
FREQUENCY RANGE:  
30 Hz to 1 KHz  
POWER CONSUMPTION:  
2.4 watts (100 mA at 24 Vdc)  
INPUT IMPEDANCE:  
2.1 Meg for all ranges.  
OPERATING AMBIENT:  
-5 to +55 °C  
ISOLATION:  
STORAGE TEMPERATURE:  
-40 to +85 °C  
Dielectric strength to 1000 Vrms transient per  
1 minute test based on EN 61010 for 50 Vdc or Vrms  
working voltage.  
RELATIVE HUMIDITY:  
Three way Isolation:  
90% at 40 °C non-condensing  
• Power to input  
• Power to analog output/communication  
• Input to analog output/communication  
INPUT OVER-VOLTAGE PROTECTION:  
10% Above full scale continuously.  
100% Above full scale for 10 seconds.  
ANALOG TO DIGITAL TECHNIQUE:  
Dual slope  
READ RATE:  
3 readings/second  
ACCURACY AT 25 °C:  
400 mV, 4V, 40V and 400V ranges  
49 Hz to 500 Hz ±0.2% of FS  
30 Hz to 1KHz ±0.2% of FS ±10 counts  
TEMPERATURE STABILITY:  
400 mV and 40 Volt range 150 ppm/°C typical  
4V and 400 Volt range 100 ppm/°C typical  
STEP RESPONSE FOR RS485 OUTPUT:  
2 seconds to 99% of the final value  
(Filter time constant = 64)  
1
2
SIG HI  
RESPONSE TIME:  
+
N/C  
N/C  
SIG LO  
To verify the response time, check the carriage return  
<CR>, it will be sent at the end of the response. You  
can send another command after you receive the  
<CR>.  
SIGNAL INPUT  
D
C
i.e.  
send: *01X01  
response: 01X01<DATA><CR>  
P
W
R
N/C  
+
-
Note: 01 is address.  
Page 20  
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DRX-FP SPECIFICATIONS  
INPUT OVER-VOLTAGE PROTECTION:  
With 1K pull down: 14V  
With 3K pull up: 20V  
INPUT TYPE:  
Min. Low level signal input (magnetic  
pickups) : From 0 mV to 120 mV  
Open Collector NPN (Use software to set:  
120mV  
ø
Without pull up/down: 60V  
EXCITATION:  
3 Kpull up to 5V): Max. current source = 1.66 mA  
Open Collector PNP (Use software to set: 1Kpull down to RTN):  
Max. current sink = 12.5 mA  
TTL/CMOS Input: (Use software to set: no pull up/down).  
Low <= 0.8 V , High >= 3.5 V (For Input: 0.2 Hz to 16 KHz)  
Low <= 0.8 V , High >= 12 V ( For Input: 0.2 Hz to 50 KHz )  
NAMUR Sensors (Use software to set: 1Kpull  
down to RTN and 8.2V Excitation.)  
5, 8.2 or 12.5V at 25mA, programmable  
ACCURACY AT 25 °C:  
± 0.1% of FS Crystal time base accuracy: ± 50 ppm  
TEMPERATURE STABILITY:  
± 50 ppm/°C typical  
Time base stability: ± 1ppm/°C  
STEP RESPONSE FOR RS485 OUTPUT:  
0.1 second to 99% of the final value  
(Filter time constant = 0, Gate time = 0.05 Sec)  
For measuring a low level signal riding on top of a  
large DC signal, connect a 0.1 uF capacitor. See  
Detail.Use software to set 1Kpull down to RTN.  
1
2
3
4
RESPONSE TIME:  
0.1uF  
To verify the response time, check the carriage return <CR>, it will be  
sent at the end of the response. You can send another command after  
you receive the <CR>.  
OPERATING MODES:  
Frequency: Range = 0.2 Hz to 50 KHz  
Max. Input Frequency: 30 KHz. for Input Level: 0-5 V  
Max. Input Frequency: 50 KHz. for Input Level: 0-12 V  
i.e.  
send: *01X01  
response: 01X01<DATA><CR>  
Note: Only for reading (X01 command).  
01 is address.  
FREQUENCY  
0 to 9.99999 Hz  
10 to 99.9999 Hz  
RESOLUTION  
0.00001 Hz  
0.0001 Hz  
Frequency mode: response time is controlled by the gate time. If  
gate time is increased then response time is longer. Other modes:  
response time is not controlled by the gate time.  
100 to 999.999 Hz 0.001 Hz  
1000 to 9999.99 Hz 0.01 Hz  
10000 to 50000.0 Hz 0.1 Hz  
WARM UP TO RATED ACCURACY:  
30 minutes  
0 to 50000 Hz  
1 Hz  
Totalize with Reset: Range = 0 to 999999*, if reading is larger  
than 999999, then reading is converted to floating point  
number, i.e. 9.99E9 (maximum).  
INPUT POWER:  
10 to 32 Volt DC  
Max. Input Frequency: 30 KHz. for Input Level: 0-5 V  
Max. Input Frequency: 50 KHz. for Input Level: 0-12 V  
A-B Totalize (Reset input used as +A input): Range = -99999  
to 999999*, if reading is larger than 999999, then reading is  
converted to floating point number, i.e. -9.99E9 (minimum),  
9.99E9 (maximum).  
POWER CONSUMPTION:  
3 Watts (125mA at 24V DC)  
OPERATING AMBIENT:  
-5 to +55 °C  
STORAGE TEMPERATURE:  
Max. Input Frequency: 30 KHz. for Input Level: 0-5 V  
Max. Input Frequency: 25 KHz. for Input Level: 0-12 V  
Quadrature (Reset input used as second input): Range  
-99999 to 999999*, if reading is larger than 999999, then reading  
is converted to floating point number, i.e. -9.99E9 (minimum),  
9.99E9 (maximum).  
Max. Input Frequency: 30 KHz. for Input Level: 0-5 V  
Max. Input Frequency: 25 KHz. for Input Level: 0-12 V  
-40 to +85 °C  
RELATIVE HUMIDITY:  
90% at 40 °C non-condensing  
J4  
=
Quadrature Mode  
R
1
2
3
4
-TX +TX  
-RX +RX  
+EXC  
Excitation  
S
4
8
5
TER  
J2  
J2  
A
B
+IN  
RST  
RTN  
Quadrature  
Encoder  
*
Resolution is 1 count.  
1
2
3
4
+EXC  
ISOLATION:  
A
B
EXC  
+IN  
RST  
RTN  
PWR  
Dielectric strength to 1000 Vrms transient per 1 minute test  
based on EN 61010 for 50 Vdc or Vrms working voltage.  
Three way Isolation:  
R
S
4
8
5
J3  
Totalize (A-B) Mode  
EXC  
• Power to input  
• Power to analog output/communication  
• Input to analog output/communication  
Frequency Mode/  
Totalize Mode  
with Reset (example)  
1
2
3
4
+EXC  
Excitation  
J2  
INPUT IMPEDANCE:  
Input: 1Mto +EXC  
Reset: 100K to +5V  
+IN  
RST  
RTN  
SIGNAL INPUT  
NPN open  
Collector  
D
C
P
W
N/C  
+
-
R
Page 21  
J1  
Quadrature Mode  
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WARM UP TO RATED ACCURACY:  
30 minutes  
DRX-PR SPECIFICATIONS  
INPUT RANGES:  
±20mA; ±400mV, ±1V, ±2V, ±5V, and ±10V  
Ratiometric or nonratiometric  
INPUT POWER:  
10 to 32 Volt DC  
POWER CONSUMPTION:  
3 watts (125 mA at 24Vdc)  
EXCITATION:  
14V or 10V @ 25mA  
OPERATING AMBIENT:  
-5 to +55 °C  
INPUT IMPEDANCE:  
Voltage Range: 1M  
Current Range: 10Ω  
STORAGE TEMPERATURE:  
-40 to +85 °C  
ISOLATION:  
Dielectric strength to 1000 Vrms transient per  
1 minute test based on EN 61010 for 50 Vdc or Vrms  
working voltage.  
RELATIVE HUMIDITY:  
90% at 40 °C non-condensing  
Three way Isolation:  
• Power to input  
• Power to analog output/communication  
• Input to analog output/communication  
J4  
INPUT OVER-RANGE PROTECTION:  
R
-TX +TX  
S
TER  
Voltage input: 50V  
Current input: 50mA  
-RX +RX  
4
8
5
MODE:  
Linear, Square root, Linear totalize,  
Square root totalize  
PWR  
J3  
R
S
4
8
5
ANALOG TO DIGITAL TECHNIQUE:  
Multiple slopes  
READ RATE:  
1
2
3
4
+
EXC  
8 readings/second, automatic polarity  
ACCURACY AT 25 °C:  
±0.1% of FS ± 2 counts  
+
+
J2  
+
V
IN  
IN  
+
-
+
I
RTN  
- -  
SIGNAL INPUT  
TEMPERATURE STABILITY:  
D
C
100 ppm/°C typical  
P
W
R
+
N/C  
-
J1  
STEP RESPONSE FOR RS485 OUTPUT:  
2 seconds to 99% of the final value  
(Filter time constant = 64)  
1
2
3
4
+
EXC  
Excitation  
SIG  
J2  
+
V
IN  
IN  
RESPONSE TIME:  
+
I
RTN  
To verify the response time, check the carriage return  
<CR>, it will be sent at the end of the response. You  
can send another command after you receive the  
COM  
1
2
3
4
1
2
3
4
+
EXC  
+
EXC  
J2  
J2  
+
V
IN  
IN  
(
+
)
+
V
IN  
IN  
+
I
<CR>.  
i.e.  
MAX.  
+
I
RTN  
20mA  
(
RTN  
(
(
)
-
send: *01X01  
(4-20)  
)
-
-
+
)
+
response: 01X01<DATA><CR>  
Note: 01 is address.  
Page 22  
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POWER CONSUMPTION:  
2.4 Watts (100 mA at 24 V DC)  
DRX-RTD SPECIFICATIONS  
SPECIFICATIONS:  
OPERATING AMBIENT:  
-5 to +55 °C  
100, 500, 1000 Ohm platinum RTD with both  
European (alpha=0.00385) and American  
(alpha=0.00392) curves.  
STORAGE TEMPERATURE:  
-40 to +85 °C  
Input Type:  
100 Ohm  
500 Ohm  
1000 Ohm  
-328 to 1562 °F  
-328 to 1562 °F  
-328 to 1562 °F  
-200 to 850 °C  
-200 to 850 °C  
-200 to 850 °C  
RELATIVE HUMIDITY:  
90% at 40 °C non-condensing  
ISOLATION:  
Dielectric strength to 1000 Vrms transient per  
1 minute test based on EN 61010 for 50 Vdc or Vrms  
working voltage.  
J4  
Three way Isolation:  
R
S
4
8
5
• Power to input  
• Power to analog output/communication  
• Input to analog output/communication  
-TX +TX  
-RX +RX  
TER  
INPUT OVER-VOLTAGE PROTECTION:  
250 V AC for 1 Minute  
PWR  
ANALOG TO DIGITAL TECHNIQUE:  
Dual slope  
R
S
4
8
5
J3  
READ RATE:  
3 readings/second, automatic polarity  
ACCURACY AT 25 °C:  
±0.5 °C for platinum RTD’s  
2
WIRE  
+EXC  
1
2
3
4
TEMPERATURE STABILITY:  
0.05 °C/°C  
J2  
+SIG  
RTD  
-SIG  
-EXC  
SIGNAL INPUT  
STEP RESPONSE FOR RS485 OUTPUT:  
2 seconds to 99% of the final value  
(Filter time constant = 64)  
D
C
P
RESPONSE TIME:  
W
N/C  
+
-
R
To verify the response time, check the carriage return  
<CR>, it will be sent at the end of the response. You  
can send another command after you receive the <CR>.  
J1  
3
WIRE  
i.e.  
send: *01X01  
1
2
3
4
4
+EXC  
+SIG  
response: 01X01<DATA><CR>  
Note: 01 is address.  
J2  
RTD  
RTD  
-SIG  
-EXC  
WARM UP TO RATED ACCURACY:  
30 minutes  
4 WIRE  
1
2
3
+EXC  
+SIG  
J2  
-SIG  
INPUT POWER:  
-EXC  
10 to 32 Volt DC  
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INPUT POWER:  
10 to 32 Volt DC  
DRX-ST SPECIFICATIONS  
INPUT RANGE:  
±30mV/ ±100mV  
Ratiometric or nonratiometric  
POWER CONSUMPTION:  
3 watts (125 mA at 24Vdc)  
OPERATING AMBIENT:  
-5 to +55 °C  
EXCITATION:  
10V @ 30mA or external  
STORAGE TEMPERATURE:  
-40 to +85 °C  
INPUT IMPEDANCE:  
More than 1MΩ  
RELATIVE HUMIDITY:  
90% at 40 °C non-condensing  
ISOLATION:  
Dielectric strength to 1000 Vrms transient per  
1 minute test based on EN 61010 for 50 Vdc or Vrms  
working voltage.  
Three way Isolation:  
• Power to input  
• Power to analog output/communication  
• Input to analog output/communication  
J4  
INPUT OVER-RANGE PROTECTION:  
R
S
4
8
5
-TX +TX  
-RX +RX  
Voltage input: From -10 to +20V  
TER  
ANALOG TO DIGITAL TECHNIQUE:  
Multiple slopes  
READ RATE:  
8 readings/second, automatic polarity  
+EXC  
PWR  
ACCURACY AT 25 °C:  
±0.2% of FS ± 2 counts  
+SIG  
J3  
-SIG  
R
S
4
8
5
TEMPERATURE STABILITY:  
75 ppm/°C typical  
-EXC  
STEP RESPONSE FOR RS485 OUTPUT:  
2 seconds to 99% of the final value  
(Filter time constant = 64)  
1
2
3
4
+EXC  
J2  
+SIG  
-SIG  
-EXC  
RESPONSE TIME:  
SIGNAL INPUT  
To verify the response time, check the carriage return  
<CR>, it will be sent at the end of the response. You  
can send another command after you receive the  
<CR>.  
D
C
V+ (external)  
+EXC  
P
W
R
+SIG  
N/C  
+
i.e.  
send: *01X01  
-
response: 01X01<DATA><CR>  
Note: 01 is address.  
-SIG  
-EXC  
J1  
WARM UP TO RATED ACCURACY:  
30 minutes  
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WARM UP TO RATED ACCURACY:  
30 minutes  
DRX-TC SPECIFICATIONS  
INPUT TYPE:  
Type J,K,T,E,R,S,B,N, J DIN  
INPUT POWER:  
10 to 32 Volt DC  
Input Type Range °F  
Range °C  
J
K
T
E
R S  
B
N
-346 to 1400°F  
-210 to 760 °C  
-270 to 1372 °C  
-270 to 400 °C  
-270 to 1000 °C  
-50 to 1768 °C  
+100 to 1820 °C  
-270 to 1300 °C  
-200 to 900 °C  
POWER CONSUMPTION:  
2.4 Watts (100 mA at 24 V DC)  
-454 to 2500°F  
-454 to 752 °F  
-454 to 1832 °F  
-58 to 3214 °F  
+212 to 3300 °F  
-454 to 2372°F  
-328 to 1652 °F  
OPERATING AMBIENT:  
-5 to +55 °C  
STORAGE TEMPERATURE:  
-40 to +85 °C  
J DIN  
RELATIVE HUMIDITY:  
90% at 40 °C non-condensing  
ISOLATION:  
Dielectric strength to 1000 Vrms transient per  
1 minute test based on EN 61010 for 50 Vdc or Vrms  
working voltage.  
Three way Isolation:  
• Power to input  
• Power to analog output/communication  
• Input to analog output/communication  
R
-TX +TX  
-RX +RX  
S
TER  
INPUT OVER-VOLTAGE PROTECTION:  
4
8
5
250 V AC for 1 minute  
ANALOG TO DIGITAL TECHNIQUE:  
Dual slope  
READ RATE:  
PWR  
3 readings/second, automatic polarity  
R
S
4
8
5
ACCURACY AT 25 °C:  
±1°C for temperature above -150 °C  
±2°C for temperature below -150 °C  
TEMPERATURE STABILITY:  
0.05 °C/°C  
STEP RESPONSE FOR RS485 OUTPUT:  
2 seconds to 99% of the final value  
(Filter time constant = 64)  
RESPONSE TIME:  
To verify the response time, check the carriage return  
<CR>, it will be sent at the end of the response. You  
can send another command after you receive the  
<CR>.  
i.e.  
send: *01X01  
response: 01X01<DATA><CR>  
Note: 01 is address.  
Page 25  
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DIMENSIONS:  
PWR  
TYPICAL COMPUTER SETUP:  
RJ12 CONNECTOR  
WITH CABLE  
COMPUTER  
P
CONNECTION  
W
R
(DB9 OR DB25)  
RS232 to  
RS485 Converter  
Half-Duplex  
COMPUTER  
POWER  
CONNECTION  
ADAPTER  
(DB9/25 TO RJ12)  
Page 26  
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WARRANTY/DISCLAIMER  
OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a  
period of 13 months from date of purchase. OMEGA Warranty adds an additional one (1) month grace  
period to the normal one (1) year product warranty to cover handling and shipping time. This  
ensures that OMEGA’s customers receive maximum coverage on each product.  
If the unit should malfunction, it must be returned to the factory for evaluation. OMEGA’s Customer  
Service Department will issue an Authorized Return (AR) number immediately upon phone or written  
request. Upon examination by OMEGA, if the unit is found to be defective it will be repaired or replaced at  
no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser,  
including but not limited to mishandling, improper interfacing, operation outside of design limits,  
improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of  
having been tampered with or shows evidence of being damaged as a result of excessive corrosion; or  
current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating  
conditions outside of OMEGA’s control. Components which wear are not warranted, including but not  
limited to contact points, fuses, and triacs.  
OMEGA is pleased to offer suggestions on the use of its various products. However,  
OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any  
damages that result from the use of its products in accordance with information provided by  
OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by it will be  
as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR  
REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF  
TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY  
AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF  
LIABILITY: The remedies of purchaser set forth herein are exclusive and the total liability of  
OMEGA with respect to this order, whether based on contract, warranty, negligence,  
indemnification, strict liability or otherwise, shall not exceed the purchase price of the  
component upon which liability is based. In no event shall OMEGA be liable for  
consequential, incidental or special damages.  
CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic  
Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical  
applications or used on humans. Should any Product(s) be used in or with any nuclear installation or  
activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility  
as set forth in our basic WARRANTY/DISCLAIMER language, and additionally, purchaser will indemnify  
OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the  
Product(s) in such a manner.  
RETURN REQUESTS / INQUIRIES  
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE  
RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN  
(AR) NUMBER FROM OMEGAS CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID  
PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return  
package and on any correspondence.  
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent  
breakage in transit.  
FOR WARRANTY RETURNS, please have the  
following information available BEFORE  
contacting OMEGA:  
FOR NON-WARRANTY REPAIRS, consult OMEGA  
for current repair charges. Have the following  
information available BEFORE contacting OMEGA:  
1. P.O. number under which the product was  
PURCHASED,  
1. P.O. number to cover the COST  
of the repair,  
2. Model and serial number of the product under  
warranty, and  
3. Repair instructions and/or specific problems  
relative to the product.  
2. Model and serial number of product, and  
3. Repair instructions and/or specific problems  
relative to the product.  
OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords  
our customers the latest in technology and engineering.  
OMEGA is a registered trademark of OMEGA ENGINEERING, INC.  
© Copyright 2000 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied,  
reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without prior  
written consent of OMEGA ENGINEERING, INC.  
PATENT NOTICE: This product is covered by one or more of the following patents: U.S. Patents Des. 336,895; 5,274,577  
/
FRANCE Brevet No. 91 12756  
/
SPAIN 2039150; 2048066  
/
U.K. Patent No. GB2 248 954; GB2 249 837  
/
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Where Do I Find Everything I Need for  
Process Mea surem ent a nd Control?  
OMEGA…Of Course!  
TEMPERATURE  
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Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies  
Wire: Thermocouple, RTD & Thermistor  
Calibrators & Ice Point References  
Recorders, Controllers & Process Monitors  
Infrared Pyrometers  
PRESSURE, STRAIN AND FO RCE  
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Transducers & Strain Gauges  
Load Cells & Pressure Gauges  
Displacement Transducers  
Instrumentation & Accessories  
FLO W / LEVEL  
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Rotameters, Gas Mass Flowmeters & Flow Computers  
Air Velocity Indicators  
Turbine/Paddlewheel Systems  
Totalizers & Batch Controllers  
p H/ CO NDUCTIVITY  
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pH Electrodes, Testers & Accessories  
Benchtop/Laboratory Meters  
Controllers, Calibrators, Simulators & Pumps  
Industrial pH & Conductivity Equipment  
DATA ACQ UISITIO N  
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Data Acquisition & Engineering Software  
Communications-Based Acquisition Systems  
Plug-in Cards for Apple, IBM & Compatibles  
Datalogging Systems  
Recorders, Printers & Plotters  
HEATERS  
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Heating Cable  
Cartridge & Strip Heaters  
Immersion & Band Heaters  
Flexible Heaters  
Laboratory Heaters  
ENVIRO NMENTAL  
MO NITO RING AND CO NTRO L  
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Metering & Control Instrumentation  
Refractometers  
Pumps & Tubing  
Air, Soil & Water Monitors  
Industrial Water & Wastewater Treatment  
pH, Conductivity & Dissolved Oxygen Instruments  
13047ML-99E  
M2769/1000  
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