Extech Instruments RH210 User manual

UserGuide

Hygro‐Thermometer
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ModelRH210
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RH210-en-GB_V1.0 12/14
2
Introduction
ThankyouforselectingtheExtechRH210Hygro‐Thermometerwhichsimultaneouslydisplays
RelativeHumidity,Temperature,andDewPoint.Measurementsaremadewitharemote
electrode.Thisdeviceisshippedfullytestedandcalibratedand,withproperuse,willprovide
yearsofreliableservice.Pleasevisitourwebsite(www.extech.com)forproductregistration,
support,andtocheckforthelatestversionofthisUserGuide.
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Features
AirTemperature,RelativeHumidity,andDewpointmeasurements
Detachableprobeforeaseofuseinavarietyofmeasurementenvironments
Fasthumiditymeasuringresponsetime
Auto‐offfeaturetosavebatterylife
LCDdisplayshowsTemperatureand%RHorDewpointsimultaneously
DATAHOLDforholdingdisplayedreading
RecordandViewMin/Maxreadings
ProgrammingmodeforselectingoC/oFtemperatureunitsandenabling/disablingtheauto
poweroffutility
Lowbatteryindicator

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RH210-en-GB_V1.0 12/14
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MeterDescription
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1. HumidityorDewPointreading
2. Temperaturereading
3. Powerbutton
4. DataHoldbutton
5. Recordbutton
6. Functionbutton
7. Probeconnection
8. SETbutton(underflap)
9. Probe
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NOTE:Batterycompartmentonbackofmeter
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MeterPower
Themeterispoweredbyone9Vbattery;pressthePowerbuttontoswitchthemeterON.Press
andholdthePowerbuttonforatleast2secondstoswitchthemeterOFF.
WhenpoweringON,themeterperformsaself‐testwherebytheLCDdisplaycountsdowntozero
beforestabilizingatthenormaloperationscreen.
IfthemeterdoesnotswitchONwhenprompted,orifthelowbatteryiconisshowingontheLCD,
pleasereplacethebattery.Refertothebatteryinstallationsectionfordetailedinformation.
TheAutoPowerOFFfeatureswitchesthemeterOFFaftera10‐minuteperiodofinactivity.To
defeatthisfeaturepleaserefertotheSetupModesection.
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RH210-en-GB_V1.0 12/14
4
Measurements
TakingRelativeHumidity/DewPointandAirTemperatureMeasurements
1. Connecttheelectrodetotheprobeinputsocketlocatedonthebottomofthemeter.
2. SwitchthemeterONbypressingthePowerbutton.
3. ThedisplaywillindicateAirtemperatureonthelowerleft(insmalldigitformat)and
either%RHorDewpointtemperatureontheupperright.
4. PresstheFunctionbuttontoselecteither%RHorDewPointTemperature.
5. PresstheHoldbuttontofreezethecurrentvaluesonthedisplay.
6. PresstheRECbuttontoaccesstheMIN‐MAXRecordingmode.Seedetailedinformation
intheMIN‐MAXRecordingsection.
7. PressandholdthePowerbuttonfor2secondstoturnthemeterOFF.

DataHold
1. PresstheHOLDbuttontofreezethedisplayedvalue.
2. TheLCDwilldisplayHOLDalongwiththeheldreading.
3. PresstheHOLDbuttonagaintoreleasethedataholdfunction.TheHOLDdisplayicon
willswitchOFF.
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MIN‐MAXRecording
Whenselected,theDataRecordingfunctionrecordstheMIN(lowest)andMAX(highest)
readings:
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1. PresstheRECbuttononcetostartrecordingMINandMAXreadings.TheRECindicator
willappearonthedisplay.
2. PressRECagainandRECMAXwilldisplayonthescreenalongwiththemaximumvalue.
3. PressRECagainandthedisplaywillshowRECMINalongwiththeminimumvalue.
4. ToviewtherealtimereadingswhilecontinuingtotracktheMINandMAXvalues,press
theHOLDbuttonwhileeithertheRECMAXorRECMINiconsarevisible;nowonlythe
RECiconwillbevisible.Themeterisnowcontinuingtomonitorthehighest(MAX)and
lowest(MIN)readingsbutisdisplayingrealtimemeasurements.ToviewtheMAXand
MINvaluesagainusetheRECbuttonasdescribedearlier.
5. ToexittheRecordmodeandresettheMINandMAXvalues,pressandholdtheREC
buttonforatleast2seconds.Thedisplaywillreturntothenormaloperatingmodeand
theREC/MAX/MINiconswillalldisappear.
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RH210-en-GB_V1.0 12/14
5
Setupmode
Note:TheSETUPModecannotbeaccessediftheHOLDortheMIN‐MAXfunctionisactive.
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1. Opentheflaponthemeter’srightsidetoaccesstherecessedSETbutton.
2. UseapapercliporsmallscrewdrivertopressandholdtheSETbuttonforatleast3seconds
untilthemeterbeepstwice.
3. The‘Code1000’promptshouldappearonthedisplay.Proceedwiththestepsbelow:
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ChangetheTemperatureUnitsofMeasure(F/C)
With‘Code1000’showingonthedisplay(asexplainedabove),followthestepsbelow:
1. PressRECandthelowerdisplaylinewillshowtwounitsofmeasureicons.Thesmaller
digitsindicatetheunitofmeasurethatwillbeadoptedwhentheseprogrammingsteps
arecomplete.
2. ToselectF,presstheFunctionbuttonsothatthenumber“1”appearsandthenpress
REC.
3. ToselectC,presstheFunctionbuttonsothatthenumber“0”appearsandthenpress
REC.
4. PresstheHOLDbuttontosavethesettingandreturntothenormaloperatingmode.The
displayshouldnowbeindicatingtheprogrammedunitofmeasure.
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Enable‐DisabletheAuto‐PowerOFFutility
With‘Code1000’showingonthedisplay(asexplainedabove),followthestepsbelow:
1. PresstheRECbuttonandthenpresstheSETbutton(briefly)toaccesstheAuto‐Off
mode.
2. ToenabletheAuto‐OFFmode,presstheFunctionbuttontoindicatea“1”onthedisplay,
andthenpresstheRECbutton.
3. TodisabletheAuto–OFFmode,presstheFunctionbuttontoindicatea“0”onthe
display,andthenpresstheRECbutton.
4. PresstheHOLDbuttontosavethesettingandreturntothenormaloperatingmode.

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RH210-en-GB_V1.0 12/14
6
BatteryReplacement
The9Vbatterythatpowerstheinstrumentrequiresreplacingwhenthebatteryiconflasheson
thedisplay.Toreplacethebatteryfollowthestepsbelow:
1. SwitchthemeterOFF.
2. Disconnecttheprobefromtheinstrument.
3. OpentherearbatterycompartmentusingascrewdrivertoremovethetwoPhillipshead
screwsthatsecurethecompartment.
4. Carefullyremovetheoldbatteryfromthecompartmentandgentlyunsnapthebattery’s
terminalsfromthewired(red/black)connectors.
5. Installanew9Vbatterybysnappingthebatteryterminalsontothewiredconnectors
(observingcorrectpolarity)andinsertingthebatteryintothecompartment.
6. Installthebatterychamberintothemeterhousingandsecurewiththetwoscrews.

Neverdisposeofusedbatteriesorrechargeablebatteriesinhouseholdwaste.
Asconsumers,usersarelegallyrequiredtotakeusedbatteriestoappropriate
collectionsites,theretailstorewherethebatterieswerepurchased,orwherever
batteriesaresold.
Disposal:Donotdisposeofthisinstrumentinhouseholdwaste.Theuserisobligatedtotake
end‐of‐lifedevicestoadesignatedcollectionpointforthedisposalofelectricalandelectronic
equipment.

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RH210-en-GB_V1.0 12/14
7
Specifications
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GeneralSpecifications
MeasurementsTemperature,RelativeHumidity,Dewpointtemperature
DataholdDataholdfreezesdisplayedreading
MemoryrecallMin/Maxreadingsstoreandrecall
AutopoweroffMeterswitchesoffafter10minutes(canbedisabled)
Samplerate0.8second(approx.)
OperatingconditionsTemperature:0to50°C(32to122°F);Humidity:<85%RH
Probe:0to95%RH
Batterypower9Valkalinebattery
PowerConsumptionApprox.6.0mADC
Weight295g(0.65lbs.)includingbatteries&probe
DimensionsMeter:135x60x33mm(5.3x2.4x1.3")
Probe:197mm(7.8”)length;15mm(0.6”)diameteroftip

ElectricalSpecificationsat23°±5°C(73°F±9°F)
MeasurementRangeResolutionAccuracy
Relativehumidity10%to95%RH0.1%RH
>70%RH:+/‐(3%rdg+1%RH)
<70%RH:+/‐3%RH
DewPoint
‐25.3°Cto48.9°C0.1°CCalculatedfrom
Temperatureand%RH
‐13.5°Fto120.1°F 0.1°F
Temperature
0°Cto50°C0.1°C±0.8°C
32°Fto122°F0.1°F±1.5°F
Note:AbovespecificationtestsconductedunderanRFfieldstrengthlessthan3V/Mand
frequencylessthan30MHz

Copyright©2014FLIRSystems,Inc.
Allrightsreservedincludingtherightofreproductioninwholeorinpartinanyform
www.extech.com

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