Oregon Scientific Thermometer EMR812HGN User Manual

FEATURES: MAIN UNIT  
MULTI-CHANNEL IN-OUT  
CABLE FREE  
THERMO-HYGROMETER  
MODEL : EMR812HGN  
USER’S MANUAL  
INTRODUCTION  
Congratulations on your purchase of the Multi-Channel In-Out  
Thermometer / Hygrometer (EMR812HGN) 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 EMR812HGN operates at 433MHz, it can be used in the U.S.  
and most places in Continental Europe.  
 
1
BEFORE YOU BEGIN  
To ensure proper functioning of the EMR812HGN 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. Positiontheremoteunitandmainunitwithineffectivetransmission  
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.  
 
3
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.  
 
4
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  
displayed in the box under the kinetic-wave.  
Press and hold IN/REMOTE for 2-seconds to enforce a  
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.  
 
5
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.  
 
6
To deactivate the remote-sensor scanning mode:  
HOW TO USE CHANNEL-1  
TEMPERATURE/HUMIDITY ALARM  
Press any button.  
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.  
 
7
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. Thetransmissioniswithinrangeandpathisclearofobstaclesand  
interference. Shorten the distance when necessary.  
 
8
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  
does not affect the general performance of the product. The  
transmissionandreceptionoftemperaturereadingswillresumeonce  
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  
batterylevelofthemainunitwillbeshownontheindoortemperature  
when it is running low.  
 
9
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. Donotsubjecttheunittoexcessiveforce,shock,dust,temperature  
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  
 
10  
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 batteries  
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 batteries  
Weight  
Main unit  
:
:
159.5 gm  
63 gm  
Remote sensing unit  
Dimensions  
Main unit  
:
:
117 x 107 x 26 mm  
92 x 60 x 20 mm  
Remote sensing unit  
 
11  
ABOUT OREGON SCIENTIFIC  
EC-DECLARATION OF CONFORMITY  
This product 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:  
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.  
Safety of information technology equipment  
(Article 3.1.a of the R&TTE Directive)  
Applied Standard  
EN 60950: 2000  
Electromagnetic compatibility  
(Article 3.1.b of the R&TTE Directive)  
Applied Standards  
We hope you will find all the information you need on our website,  
howeverifyou'dliketocontacttheOregonScientificCustomerCare  
departmentdirectly,pleasevisitwww2.oregonscientific.com/service/  
support or call 949-608-2848 in the US. For international enquiries,  
default.asp.  
ETSI EN 301 489-1-3 (Ver.1.4.1) :2002-08  
Additional information:  
TheproductherewithcomplieswiththerequirementsoftheLowVoltageDirective73/23/EC,  
the EMC Directive 89 / 336 / EC and carries the CE marking accordingly.  
Carmelo Cubito  
Agrate Brianza (MI) / Italy January 2004  
EC Mandatory of Manufacturer  
COUNTRIES RTTE APPROVAL COMPLIED  
CH  
All EC countries, Switzerland  
N
And Norway  
 
12  

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