FEATURES: MAIN UNIT
MULTI-CHANNEL IN-OUT
CABLE FREE
THERMO-HYGROMETER
MODEL : EMR899HGN
User Manual
INTRODUCTION
Congratulations on your purchase of the Multi-Channel In-Out
Thermometer / Hygrometer (EMR899HGN) with a 433MHz cable-
free thermo-hygro sensor.
Enclosed with this package is one (1) main display unit and one (1)
cable-free remote thermo-hygro sensor unit.
The main unit has an extra-large multifunction 2-line LCD that
shows recordings for indoor and outdoor temperatures, humidity,
maximum and minimum recordings and trend indicators. The unit
supports up to three 433MHz remote thermo-sensors or thermo-
hygro sensors. A variety of additional sensors can be purchased
separately.
In addition to monitoring maximum and minimum temperature and
humidity readings, the unit also has an alarm that can be set to
activate once readings exceed a given variance.
No wire installation is required between the main and remote units.
As the EMR899HGN operates at 433MHz, it can be used in the U.S.
and most places in Continental Europe.
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BEFORE YOU BEGIN
To ensure proper functioning of the EMR899HGN follow this setup
procedure.
For best operation:
1. Assign different channels to different remote units.
2. Insert batteries for remote units before doing so for the main unit
(see instructions for battery installation).
3. Place the main unit as close as possible next to the remote unit,
reset the main unit after installing batteries. This will ensure
easier synchronization between the transmission and reception
of signals.
4. Position the remote unit and main unit within effective transmis-
sion range, which, in usual circumstances, is 20 to 30 meters.
Note that the effective range is vastly affected by the building
materialsandwherethemainandremoteunitsarepositioned.
Try various set-ups for best result.
Though the remote units are weather proof, they should be placed
away from direct sunlight, rain or snow.
H
I
Wall-mount holder
Supports the remote unit in wall-mounting
BATTERY AND CHANNEL
INSTALLATION: REMOTE UNIT
Removable table stand
For standing the remote unit on a flat surface
The remote thermo-hygro sensor unit uses two (2) UM-4 or “AAA”
size alkaline batteries.
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Follow these steps to install / replace batteries:
BATTERY INSTALLATION: MAIN UNIT
1. Remove the screws on the battery compartment.
The main unit uses two (2) UM-3 or “AA” size alkaline batteries.
2. Select the channel number on the CHANNEL slide switch.
3. Select the temperature display unit on the °C/°F slide switch.
Follow these steps to install / replace batteries:
1. Slide open the battery compartment door.
2. Insert the batteries strictly according to the polarities shown
therein.
3. Replace the battery compartment door.
4. Insert the batteries strictly according to the polarities shown
therein.
5. Replace the battery compartment door and secure its screws.
Replacethebatterieswhenthelow-batteryindicatoroftheparticular
channel lights up on the main unit. (Repeat the steps described in
section “BEFORE YOU BEGIN”)
Replace the batteries when the low-battery indicator of the indoors
temperature lights up. (Repeat the steps described in section
“BEFORE YOU BEGIN”)
Note that once a channel is assigned to a remote unit, you can
only change it by removing the batteries or resetting the unit.
If not disposed of properly, batteries can be harmful.
Protect the environment by taking exhausted batteries
ot authorized disposal stations.
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GETTING STARTED
Kinetic-wave
Icon
Once batteries are placed in a given remote sensor unit, it will start
transmitting information at 40-second intervals.
Remote
Display
Remote
Display
Remote
Display
Designated
Display
Indoor
Display
Also, for approximately a 3-minute duration, the main unit will
automatically search for signals once batteries are installed. Upon
successful reception, the individual channel temperature reading
will be displayed on the top line and the respective humidity reading
on the bottom line. The main unit will automatically update its
readings at about 40-second intervals.
Channel One Channel Two Channel Three
To display temperature / humidity readings from the main unit:
•
Press IN / REMOTE until a dot is displayed in the box under the
kinetic-wave.
If no signals are received, blanks “ --- ” will be displayed and the
kinetic wave icon will not show.
To display temperature / humidity readings from a remote
sensor:
To force a signal search:
•
Press CHANNEL until the appropriate remote sensor channel is
•
Press and hold IN/REMOTE for 2-seconds to enforce a
displayed in the box under the kinetic-wave.
3-minute search.
Ifnoreadingsarereceivedformoneparticularchannelformorethan
15 minutes, blanks “ --- ” will be displayed until further readings are
successfully searched. Check the remote sensor to ensure that it is
secure and that the correct channel has been selected. Optionally,
press and hold IN/REMOTE for 2-seconds to enforce a search.
This is useful in synchronizing the transmission and reception of the
remote and main units.
Repeat this step whenever you find discrepancies between the
reading shown on the main unit and that on the respective remote
unit.
HOW TO READ
THE KINETIC-WAVE DISPLAY
HOW TO CHECK REMOTE AND
INDOORS TEMPERATURES
The kinetic-wave display shows the signal-receiving status of the
main unit. There are three possible forms:
Display of readings from a remote sensor or the main unit is a one-
step procedure. The remote sensor channel or the main unit display
is indicated in a box under the kinetic-wave icon.
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The unit is in searching mode.
Arrow
indicator
Transmission data are securely
registered.
Temperature
Trend
Rising
Rising
Steady
Steady
Falling
Falling
No signals.
Arrow
indicator
THE COMFORT-LEVEL ICONS
Humidity
Trend
The comfort level is based on the recorded relative humidity. An
indicator will be displayed ot show if the level is comfortable, wet or
dry.
Note: If the temperature goes above or below the temperature
measuring range of the main unit or the remote unit ( stated in
specification), the display will show “HHH” or “LLL”.
Comfort-level
REMOTE SENSOR SCANNING
TEMPERATURE AND HUMIDITY TREND
INDICATORS
The unit can be set to automatically scan and display readings from
the remote sensors. When the remote-sensor mode is active, the
display will show the readings from one channel for about 4-second
and then proceed to the next channel display.
Thetemperature-trendandhumidity-trendindicatorsshowthetrends
of collected readings. Arrows indicate a rising, steady or falling
trend.
To activate the remote-sensor scanning mode:
•
Press and hold CHANNEL for 2-seconds.
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To deactivate the remote-sensor scanning mode:
Press any button.
HOW TO USE CHANNEL-1
TEMPERATURE/HUMIDITY ALARM
•
Upper and lower temperature and humidity limits for channel-1 can
be set so that an alarm activates when the limits are exceeded.
MAXIMUM AND MINIMUM
TEMPERATURE AND HUMIDITY
The high and low temperature and humidity displays are selected by
sequentially pressing HI/LO.
The maximum and minimum recorded temperature and humidity
readings will automatically be stored in the memory.
The high-low displays are as follows:
To display the maximum and minimum display memory:
Sequence
Respective Display
Enters HI temperature display
Enters HI humidity display
Enters LO temperature display
Enters LO humidity display
1. Select the channel to be checked.
Pressing HI/LO once
Pressing HI/LO twice
Pressing HI/LO three times
Pressing HI/LO a four time
2. Press MEM/CLEARonce to display the maximum temperature
and again the minimum temperature. The respective indicators,
MAX or MIN will be displayed.
To clear the memory:
•
Press and hold MEM/CLEAR for 2-seconds.
To set a high or low temperature or humidity alarm:
If you press MEM/CLEAR now, the maximum and minimum
temperatures will have the same values as the current ones until
different readings are recorded.
1. Press HI/LO, channel-1 will be displayed.
2. Press to set the temperature or humidity limit. Each press will
increase increments by one degree or percentage. Press and hold
the button for a rapid-scrolling sequence by increments of five.
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To disable an alarm:
Note:
1. Enter the setting mode by pressing HI/LO.
2. Then, press AL ON/OFF.
The temperature range is from -50°C (-58°F) to +70°C
(158°F).
The alarm has been disabled and will not sound at the previously set
limit.
Ifthisisthefirsttimeyousetthelimits,thelowerlimitwillstart
from -50°C (-58°F) and the upper limit +70°C (158°F).
Otherwise, the reading will start from the temperature last
selected.
To disable a sounding alarm:
The humidity range is from 2% to 98%.
•
Press any button, the alarm sound will stop.
Ifthisisthefirsttimeyousetthelimits,thelowerlimitwillstart
from 2% and the upper limit 98% Otherwise, the reading will
start from the humidity last selected.
DISCONNECTED SIGNALS
If without obvious reasons the display for a particular channel goes
blank, press IN/REMOTE to enforce an immediate search.
3. Repeat the steps to set the upper humidity setting and the lower
temperature and humidity settings.
4. When finished, press HI/LO to set another limit or wait
16-seconds and the unit will automatically return to the normal
display. The respective HI, LO or both indicators will light up
to signify the status of the alarm.
If that fails, check:
1. The remote unit of that channel is still in place.
2. The batteries of both the remote unit and main unit. Replace as
necessary.
If in another channel other than channel one is selected, when the
alarm activates the display will switch to channel-1 and the display
will flash. If left untouched, the alarm will activate for a 1-minute.
Press any key to momentarily stop the alarm. The alarm will activate
again if the limit continues exceeds the set limit.
Note that when the temperature falls below freezing point, the
batteries of outdoor units will freeze, lowering their voltage
supply and the effective range.
Note: If a second limit is passed while an alarm is active, the
first alarm will complete its 1-minute cycle and the alarm will
continue to activate for a second minute to indicate that a
second limit has been surpassed.
3. The transmission is within range and path is clear of obstacles
and interference. Shorten the distance when necessary.
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TRANSMISSION COLLISION
HOW TO USE THE TABLE STAND OR
WALL MOUNTING
Signals from other household devices, such as door bells, home
security systems and entry controls, may interfere with those of this
product and cause temporarily reception failure. This is normal and
doesnotaffectthegeneralperformanceoftheproduct.Thetransmis-
sion and reception of temperature readings will resume once the
interference recedes.
Themainunithasaretractabletablestand,whichwhenflippedopen,
can support the unit on a flat surface. Or you can flip close the stand
and mount the unit on a wall using the recessed screw hole.
As for the remote unit, it comes with a wall-mount holder and a
removable stand. Use either to hold the unit in place.
Main unit Wall-mount
Table Stand
NOTE ON °C AND °F
The unit of temperature display is selected on the °C/°F slide switch.
Select °C for Centigrade or °F for Fahrenheit.
Note that the remote temperature display on the main unit is
dominated by the selection on the °C/°F slide switch of the
main unit. Whatever the display units of the remote sensors
are, they will be automatically converted to the chosen one of
the main unit.
Remote unit Wall-mount
Table Stand
LOW BATTERY WARNING
When it is time to replace batteries, the respective low-battery
indicator will show up when the respective channel is selected. The
battery level of the main unit will be shown on the indoor tempera-
ture when it is running low.
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THE RESET BUTTON
SPECIFICATIONS
This button is only used when the unit is operating in an unfavorable
way or malfunctioning. Use a blunt stylus to hold down the button.
All settings will return to their default values.
Main unit
Display temperature range : -50.0°C to 70.0°C
(-58.0°F to 158.0°F)
Proposed operating range : - 5.0°C to 50.0°C
PRECAUTIONS
( 23.0°F to 122.0°F)
This product is engineered to give you years of satisfactory service
if you handle it carefully. Here are a few precautions:
Temperature resolution
: 0.1°C to ( 0.2°F)
Temperature compensation : -10.0°C to 60.0°C
1. Do not immerse the unit in water.
(14.0°F to 140.0°F)
2. Do not clean the unit with abrasive or corrosive materials. They
may scratch the plastic parts and corrode the electronic circuit.
Relative Humidity
Operating range
: 25% RH to 90% RH
3. Do not subject the unit to excessive force, shock, dust, tempera-
ture or humidity, which may result in malfunction, shorter
electronic life span, damaged battery and distorted parts.
Remote thermo-hygro unit
Display temperature range : -50.0°C to 70.0°C
4. Donottamperwiththeunit’sinternalcomponents. Doingsowill
invalidate the warranty on the unit and may cause unnecessary
damage. The unit contains no user-serviceable parts.
(-58.0°F to 158.0°F)
Proposed operating range : -20.0°C to 60.0°C
( -4.0°F to 140.0°F)
5. Only use fresh batteries as specified in the user’s manual. Do not
mix new and old batteries as the old ones may leak.
Temperature resolution
: 0.1°C to ( 0.2°F)
Temperature compensation : -10.0°C to 60.0°C
6. Always read the user’s manual thoroughly before operating the
unit.
(14.0°F to 140.0° F)
Relative Humidity
Operating range
: 25% RH to 90% RH
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General
CAUTION
RF Transmission Frequency
No. of Remote unit
:
:
:
:
:
433 MHz
Maximum of 3
Maximum 30 meters
0.1°C to ( 0.2°F)
around 40 seconds
—
—
—
The content of this manual is subject to change without
further notice.
RF Transmission Range
Temperature compensation
Temperature sensing cycle
Due to printing limitation, the displays shown in this
manual may differ from the actual display.
The manufacturer and its suppliers held no
responsibility to you or any other person for any damage
expenses, lost profits, or any other claim arise by using
this product.
Power
Main unit
:
:
2 pcs UM-3 or “AA” 1.5V
alkaline battery
—
The contents of this manual may not be reproduced
without the permission of the manufacturer.
Remote sensing unit
2 pcs UM-4 or “AAA” 1.5V
alkaline battery
Weight
Main unit
:
:
164.5 gm
63 gm
Remote sensing unit
Dimensions
Main unit
:
:
117 x 107 x 26 mm
92 x 60 x 20 mm
Remote sensing unit
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ABOUT OREGON SCIENTIFIC
EC-DECLARATION OF CONFORMITY
Oregon Scientific products such as digital cameras; MP3 players;
children'selectroniclearningproductsandgames;projectionclocks;
health and fitness gear; weather stations; and digital and conference
phones. The website also includes contact information for our
customer care department in case you need to reach us, as well as
frequently asked questions and customer downloads.
This product contains the approved transmitter module that
complies with the essential requirements of Article 3 of the R&TTE
1999 / 5 / EC Directive, if used as intended and the following
standards have been applied:
Safety of information technology equipment
(Article 3.1.a of the R&TTE Directive)
Applied Standard
EN 60950-1: 2001
We hope you will find all the information you need on our website,
howeverifyou'dliketocontacttheOregonScientificCustomerCare
department directly, please visit:
Electromagnetic compatibility
www2.oregonscientific.com/service/support
(Article 3.1.b of the R&TTE Directive)
OR
Applied Standards
ETSI EN 301 489-1-3 (Ver.1.4.1) : 2002-08
Call 949-608-2848 in the US.
Efficient use of radio frequency spectrum
For international enquiries, please visit:
(Article 3.2 of the R&TTE Directive)
www2.oregonscientific.com/about/international/default.asp
Applied Standards
ETSI EN 300 220-3 (Ver1.1.1) : 2000-09
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Additional information:
The product herewith complies with the requirements of the Low
Voltage Directive 73 / 23 / EC, the EMC Directive 89 / 336 / EC and
carries the CE marking accordingly.
Carmelo Cubito
Agrate Brianza (MI) / Italy January 2004
Manufacturer’s EU R&TTE Representative
COUNTRIES RTTE APPROVAL COMPLIED
CH
All EC countries, Switzerland
N
and Norway
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MULTI-CHANNEL IN-OUT CABLE FREE
THERMO-HYGROMETER
Model: EMR899HGN
User Manual
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©2004 Oregon Scientific. All rights reserved.
086-002233-103
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