User's Manual
Page1RH200W‐en‐US_v1.08/17
USERMANUALforMODELRH200W
WirelessHygro‐Thermometer
ThankyouforselectingtheExtechRH200WWirelessHygro‐ThermometerwithSelf‐Calibration&AutoNightLight.Thisdeviceisshippedfullytested
andcalibratedand,withproperuse,willprovideyearsofreliableservice.Pleasevisitourwebsite(www.extech.com)tocheckforthelatestversionof
thisUserManual,ProductUpdates,andCustomerSupport.
DESCRIPTIONS
MAINUNIT
1. Backlightkey
Innormalmode,shortpressfor5secondsofbacklighting.Pressingotherkeyswillresetthe5‐secondtimer
2. OUT(CHANNEL)/+key
Incalibrationmode,shortpresstoincreasethevalue
Innormalmode,shortpresstoswitchbetweenINDOOR,Channel1~8
Innormalmode,
longpresstoenterauto‐cycle(Channel 1~8andINDOORreadingswillalternatelydisplayat4‐
secondintervalsandtheicon willdisplay).Fromauto‐cyclemode,shortpresstoreturntonormalmode.
3. M(MODE)key
Incalibrationmode,shortpressforoptions.
Incalibrationmode,longpresstocleardata
4. MIN‐MAX/‐key
Incalibrationmode,shortpresstodecreasevalue
Innormalmode,shortpress
tocheckmaximum/minimumtemperatureandhumidityrecords.Shortpressto
returntonormalmode
WithMAXorMINdisplayed,longpresstoresetthedisplayedvalues
5. CALkey
Innormalmode,longpresstoentercalibrationmode
Incalibrationmode,longpresstoreturntonormalmode
6. Autonight
‐lightswitch
SlidetoONpositiontoactivatenight‐light(thelightwillautomaticallyturnonindarkareas).Thebrightnessisweakerthannormalbacklight.Slideto
OFFpositiontoturnoffthenight‐lightfunction
7. °C/°Fkey‐Shortpresstotoggletemperatureunits°C/°F
8.
SENSORkey
Innormalmode,shortpresstoactivatethereceiverforthecurrentchannel.Theunitwillreceive
signalsfor5minutes
9. RESETkey
Shortpressforafactorydefaultreset.Performaresetifthedisplayfreezesortheunitotherwise
malfunctions.
WIRELESSSENSOR
1. TransmissionstatusLED(flasheswhensensoristransmitting)
2. Wallmount
3. CHANNELslideswitch(assignsensortoChannel1~8)
4. RESETkey(shortpresstoresetthesensor)
5. Batterycompartment(2xAAbatteries)
OPERATION
POWERINGTHEWIRELESSSENSOR
1. Removethebatterydoorofthesensor
2. Insert2‘AA’batteries,observingcorrectpolarity
3. Closethebatterydoor
Notes:Onceasensorisassignedachannelusingthechannelslideswitch,youcanonlyre‐assignachannelbyremovingthebatteriesorresettingthe
unit.Avoidplacing
thesensorindirectsunlightorinclementweather.
POWERINGTHEMAINUNIT
1. Removethebatterydoorofthemainunit
2. Install4‘AA’batteriesobservingcorrectpolarity;thenuseapapercliptopresstheRESETkey
3. Closethebatterydoor
4. AllLCDsegmentswillswitchon
Note:Toavoidapairingfailure,powerupthesensorfirst,and
thenpresstheRESETkeyonthemainunitonly.
INDOORTEMPERATURE/RELATIVEHUMIDITY
1. ShortpressOUTuntil‘IN”isdisplayed.Theunitisnowdisplayingindoortemperature°C/°FandRelativeHumidity%.
2. Shortpress°C/°Ftoswitchbetween°Cand°F
3. Whenthetemperatureis<‐40°F/°Cor>158°F(70°C),LoorHIwillbedisplayed
respectively.Thehumiditydisplaywillshowdashes:
4.
Whenthehumidityis<1%or>99%,LoorHIwillbedisplayed:
COMFORTINDICATION
Thecomfortindicationfeatureisanicon‐basedsystemshowingcomfortlevelbasedonindoorairtemperatureandhumidityrangingfromExcessive
Cold(lefticonbelow)toComfortable(centericon)toExcessiveHeat(righticon).
Note:Comfortindicationcanvaryevenwhenmeasuringthesametemperaturebecauseofthestrongeffecthumidityhasoncomfort.Thereisnocomfort
indicationwhentemperatureis<0°C(32°F)or>60°C(140°F).
TEMPERATURETRENDINGARROWS
Thetemperaturetrendindicatorillustratesthetemperaturechangeovertime.Arrowsindicaterising(lefticonshownbelow),steady(centericon),or
fallingtemperatures(righticon).
MAX/MINRECORDING
ViewtheMAX/MINtemperatureandhumidityreadingssincethelastreset.
1. Innormalmode,shortpressMIN‐MAXtoshowthecurrentmaximumtemperatureandhumidityvalues(diagramonleftbelow);pressagaintoshow
theminimumvalues(diagramincenter);pressagaintoexitthemode(theunitautomatically
exitsthemodeafterapproximately5seconds).
2. Performamanualreset(clearMAX/MINreadings)bylongpressingMIN‐MAXwhentheunitisdisplayingtheMAX/MINrecords(diagramonright).
RECEIVINGWIRELESSSENSORSIGNALS
1. Innormalmode,shortpressSENSORtostartreceivingdata.
2. Thesignalicon
willflash(diagramonleftbelow)untilreceptionoccurs.After5minutes,theiconwilldisappearifreceptionfails(centerdiagram).
3. ReceivingawirelesssignalafteramanualresetorwhenSENSORispressedwillcausedashestodisplayinthereadingsareawhenwaitingforsignal.
4. For
successfulreception,thesignaliconwillappearasshowninthediagrambelowonright.Theselectedchannelnumberappearsintheboxbelow
theicon.
1. Innormalmode,shortpressOUTtoswitchthedisplaybetweenINDOORandCHANNEL1~8.
2. Innormalmode,longpressOUTtotoggleauto‐cyclemodeON/OFF.Auto‐cyclealternatelydisplaysthechannelsat4‐secondintervals(theicon
willshowwhenauto‐cycleisactive).Inauto‐cyclemodeonlytheactivelycommunicatingchannelswillappear.ShortpressOUTtoexitmode.
3. Tocheckthesignalsfrommultiplewirelesssensors,shortpressOUTrepeatedlyinnormalmode.
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