Extech Instruments RHT30 User manual

USERMANUAL
USBMulti‐FunctionDataloggers
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RHT30Humidity/TemperatureDatalogger
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TH30DualTemperatureDatalogger
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2RHT30_TH30‐en‐GB_V1.0(11/16)
Introduction
ThankyouforselectingtheExtechmulti‐function,easy‐to‐use,portableUSB
datalogger.TheRHT30offerstemperatureandhumidityloggingandtheTH30offers
internal(air)andexternal(probe)temperaturelogging.
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TheseUSBdataloggerscanbeconfiguredandcustomizedbytheuserbypluggingthem
intoaPCUSBport,followingtheon‐screenprompts,andmakingselectionsonthe
supplied‘PDFLoggerConfigurationTool’.
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Thesedevicesareshippedfullytestedandcalibratedand,withproperuse,willprovide
yearsofreliableservice.
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Features
Plug‐and‐playdataloggerwithUSBconnector.NoUSBdriverrequired
UserconfigurabledataloggingsettingsviasuppliedPCsoftwaretool
AdvancedDataloggerfunctionsincludingdelayedstart,high/lowalarms,
bookmarking,andpasswordprotection
AutomaticallygeneratePDFandMicrosoft®Excel®datalogreports
Highaccuracythermistortemperaturesensoronbothmodelswithcapacitive
humiditysensorontheRHT30
Compactlight‐weightdesign
LargeLCDforeasyviewing
Dualcolor(redandgreen)LEDstatusindicatorfordataloggerprogress,PC
connectionstatus,andhigh/lowalarms
Largememorycapacity:48,000readings
Descriptions
DataloggerDescription
1. Externaltemperaturesensor(TH30only)
2. Externaltemperaturesensorconnection
todatalogger(TH30only)
3. Protectivecoverandswivelstand
(removetoexposeUSBplug).Rotatethe
coverforbestdesktopviewingangle.
4. LCDdisplay.RefertotheDisplayDescriptionlaterinthissection.
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5. StatusLEDindicator(red/green).RefertotheStatusLEDIndicatorDescription
laterinthissection.
6. MAX‐MINbutton.RefertotheButton
Descriptionslaterinthissection.
7. Sensors(Thermistorinternalair
temperatureandcapacitiveRHsensor)
8. PowerandDatalogStart/Stopbutton.
RefertotheButtonDescriptionslaterinthissection.
9. MARK/Batterylifebutton.RefertotheButtonDescriptionslaterinthis
section.
10. USBplug
11. Batterycompartment(CR2032x2)on
rear
12. Wallhangingmount(rear).Mounting
screwsupplied.
ButtonDescriptions
POWERbutton.ShortpresstopowerONorOFF.Notethatthedatalogger
cannotbeswitchedOFFwhiledataloggingisinprogress.
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START/STOPbutton(samephysicalbuttonasthePowerbuttonabove).Press
andholdfor5secondstostartorstopthedatalogger.Notethatthedataloggerwill
notstartunlessithasbeenconfiguredusingthe‘PDFLoggerConfigurationTool.exe’
programasdescribedlaterinthisusermanual.
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Maximum‐MinimumReadingbutton.Atanytime,shortpresstostep
throughthehighest(MX)andlowest(MIN)readingsrecordedinthecurrent
dataloggingsession.
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Bookmarkbutton.Manuallyplaceatime‐stamped‘bookmark’inthedatalog
reportbypressingandholdingthebuttonuntilthedisplayedmeasurementflashes3
times.Uptoeight(8)bookmarkscanbesaved.
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BatteryStatusNote:ShortpresstheMARKbuttontodisplaytheapproximatenumber
ofdaysremainingforthebatterylife.
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Display(LCD)Description
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oFoCTemperatureunitofmeasureasprogrammedbytheuser
RH%DisplayedwhenshowingRelativeHumidityreading(RHT30)
T1  Representstheinternalsensor(air)temperature(TH30)
T2Representstheexternalprobetemperature.Ifnoprobeisconnected,
thedisplaywillshowdashesfortheT2temperaturereading(TH30)
H  HighAlarmtriggered
L LowAlarmtriggered
RECRECflashesoncepersecondwhenactivelydatalogging.Whenloggeris
programmedwitha‘StartDelay’,RECisdisplayedbutdoesnotflash
untilafterthedelaytimehaselapsedandtheloggingbegins
Batteryiconflashesoncepersecondwhenbatteryleveliscriticallylow
MXDisplayedwhenthemaximumrecordedreadingisselectedwiththe
MAX‐MINbutton
MN Displayedwhentherecordedminimum(MN)readingisselectedwith
theMAX‐MINbutton
LEDStatusIndicatorDescription
Thedualcolor(red/green)LEDstatusindicatorislocatedtotherightoftheLCD.
Red(Alarm):Blinksredevery10secondsinanalarmcondition
Green(Datalogging):Blinksgreenevery10secondswhileactivelydatalogging
Green(PCconnection):GlowssteadygreenwhileestablishingconnectiontoPC
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PDFLoggerConfigurationTool
ConnectthedataloggertoPCUSBport.ThePCwillprompttoviewfiles.Openthe‘PDF
LoggerConfigurationTool’fromthelistofavailablefiles.RefertotheOperation
Sectionforadditionaldetailsonthistool:
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1. CONVERTTOEXCEL:Createaspreadsheetreportoftheloggeddata
2. CONVERTTOPDF:CreateaPDFreportandatrendgraphoftheloggeddata
3. CONFIGURATION:Clicktoconfigurethelogger
4. LANGUAGESELECTION
5. SAMPLINGRATE:Dataloggerrecordinginterval
6. STARTDELAY:DelayperiodfromwhenSTARTispressedanddataloggingbegins
7. TEMP.UNIT:Temperatureunitselection(oC/oF)
8. PASSWORD:Selecta16‐characterpasswordfortamperprotection
9. COMPANYNAME:20‐Characteruserlabelforinclusioninloggingreport
10. SAVE:PressSAVEtoconfirmtheconfiguration
11. MANUAL:OpenthesuppliedPDFUserManual
12. CANCEL:Aborttheconfiguration
13. ALARMLIMIT:SelecttheRH%andTemperaturelow/highalarmlimits.Notethat
fortheTH30,RH%isreplacedbyexternaltemperatureprobealarmlimit
14. ALARMDELAY:Dataloggerwillignorealarmsfortheprogrammedperiodoftime
15. ALARMTYPE:SelectAlarmmode
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Operation
NOTES:
1.AdobeReader®softwareisrequired.
2.EnsuretheloggerisatroomtemperaturebeforeinsertingitintoaPCport.
3.Theexecutablefileforprogrammingisnamed“PDFLoggerConfigurationTool”.
4.Adataloggingsessioncannotstartuntilthedataloggerisproperlyconfigured.
ConfiguringtheTH30andRHT30foraDataloggingsession
Atanytimebeforeloggingisstarted,theloggercanbeprogrammedandre‐
programmed.Thepreviousloggingsessionwillbedeletedonceanewsessionis
started.
1. ConnectthedataloggertoaPCviatheUSBport.TheloggerwillswitchON
automatically.Notethatashortpressofthepowerbutton willalsopower
thelogger.
2. TheLEDwillglowgreenwhilea
connectionwithcomputerisbeing
established.
3. AnAutoPlaypromptwillappearonthePC
whencommunicationisestablished.
4. Clickon‘Openfoldertoviewfiles’tosee
theavailablefiles.
Opentheprogram"PDFLoggerConfigurationTool.exe".
5. ThedefaultlanguageisEnglish;selectGerman,French,Italian,Spanish,or
Portugueseasdesired.Thegeneratedloggingreportformatwillmatchthe
languageselected.
6. ToreviewtheUserManual,click‘Manual’toopentheUserManualPDFfile.
7. Theparametersneededtoconfigurethedataloggerforloggingaredefined
below.Refertotheearlierscreenshotofthe‘PDFLoggerConfigurationTool’
windowforreference:
DatalogSamplingRate
Selectthedataloggingsamplingrate(recordinginterval)from30seconds~
120minutes.Thedefaultsettingis30seconds.
DatalogStartDelay
Selectaperiodoftimethatmustelapsebeforerecordingcanbeginafterthe
Start/Stopbuttonispressed(selectfrom0minto24hours).Thedefault
settingis0minutes.
TemperatureUnitofMeasurement
Selectthetemperatureunit°Cor°F.
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AlarmDelay
ThepresetalarmdelaytimefortheSingleEventAlarmmodeisalwayszero.
TheadjustabledelaytimerangefortheCumulativeAlarmis5~120minutes.
AlarmModes
SingleEventAlarmmode:TheLEDimmediatelystartsflashingredevery10
secondswhenthemeasuredvalueexceedsthealarmthreshold.
CumulativeAlarmmode:TheLEDbeginsflashingredonlyaftertheaverage
valueexceedsthealarmthresholdandalsoafteranyprogrammedAlarm
Delaytime.SeeAlarmDelayparameterabove.
AlarmDisable(default):Alarmfunctiondisabled.
AlarmNote:TheLEDwillcontinueflashingredevery10seconds(onceitis
triggeredbyanalarm)evenwhenthemeasurementlaterreturnstothe
normalrange.TostoptheLEDalarm,plugtheloggerintothePCUSBportto
generateareport,orpoweroffthelogger(shortpressofthepowerbutton
whileitisnotconnectedtothePC).
AlarmLimits
Selectthealarmthresholdrangesforairandexternalprobetemperature
(TH30)orairtemperatureandRH%(RHT30).Forexample,iftheexternal
probetemperaturerangeissetto2.0~8.0oC,whenthemeasurementfalls
below2oCorexceeds8oCtheLEDwillflashredevery10seconds.
Note:Ifanalarmoccursbetweentwologgingpoints,theloggeddatawillnot
showthealarmbuttheLEDmaystillflashredevery10seconds,especiallyin
SingleEventalarmmode.Ifdesired,usetheCumulativeAlarmmodeto
minimizethiseffect.
Password
A16alphanumericcharacter(max.)passwordmaybeusedtoprevent
unauthorizedre‐programming.
UserCompanyName
Inputacompanynametobeincludedonthelogreport(20charactersmax.).
ANoteOnTimeZones
TheloggerautomaticallysynchronizesthetimezonewiththeconnectedPC
when‘SAVE’isselected.Note:Timezonechangesoccurringduringloggingare
nottakenintoaccount.

Oncealltheprogrammingiscomplete,press‘SAVE’toconfirmthesettings.Closethe
setupwindow,removetheloggerfromthePCUSBport,andstartdataloggingas
describedinthenextsection.
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8RHT30_TH30‐en‐GB_V1.0(11/16)
StartDatalogging
1. ConfiguretheloggeraspreviouslydescribedandthenholdtheStart/Stop 
buttonfor5secondstostartlogging.
2. Measurementsupdateonthedisplayevery10seconds.FortheRHT30the
temperatureandRH%displaystoggleevery5seconds.
3. IftheloggerisprogrammedwithaStartDelay:Afterpressingandholdingthe
Start/Stopbuttonfor5secondstostartlogging,RECwillappearontheLCDbut
willnotflashuntilthedelaytimehaselapsedandlogginghasbegun.
4. Whenthedataloggerissuccessfullyrunning,theLEDflashesgreenevery10
seconds(aslongasthereisnoalarm).
MonitoringAlarmsWhileDatalogging
TheLEDwillflashREDevery10secondswhenthereisanalarm.Thedisplayalso
shows‘L’forlowalarmand‘H’forhighalarm.TostoptheLEDfromflashingred,
plugtheloggerintoaPC,orpoweroff(shortpressofthepowerbutton).
Placing‘Bookmarks’WhileDatalogging
Toplaceabookmarkmanuallyduringdatalogging,pressandholdtheMARKbutton
untilthemeasuredreadingflashes3times.Uptoeight(8)bookmarkscanbe
placed;thebookmarkswillappearintheloggingreport.
MAX‐MINReadings
ShortpresstheMAX‐MINbuttontostepthroughthehighest(MX)andlowest(MN)
readingsstoredinmemory.
CheckingBatteryStatus
Atanytime,shortpresstheMARKbuttontoviewtheapproximatenumberofdays
remainingforbatterylife.Ifbatterypoweriscriticallylow,thebatteryiconwill
blinkoncepersecondontheLCDdisplay.
DownloadingLoggedData(PDFandSpreadsheetDatalogReports)
1. PressandholdtheStart/Stop buttonfor5secondstostopthedatalogger.
2. PlugtheloggerintothePCUSBport(thisalsostopsthedatalogger).
3. Openthe‘PDFloggerConfigurationtool’fromthelistofavailablefiles.
4. Choose‘ConverttoPDF’or‘ConverttoExcel’togenerateareport.
5. SelectthePCfilelocationwherethereportistobesaved.
6. ThePDFreportincludestherecordeddata,bookmarks,andatrendgraph.The
spreadsheetreportcontainsthesamedataasthePDFreportminusthetrend
graph.
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Specifications
Display(LCD)   5‐digitLCDwithmulti‐functionindicators
Statusindicator(LED)Dualcolormulti‐purposeLED(red/green)foractivelogging,
alarms,andPCconnectionstatus
TemperatureSensorsNTCThermistors(TH30/RHT30internaltemperature
sensorsandTH30externaltemp.probe)
Ext.Temperatureprobelength 2.1m(84”)(TH30)
Temperaturerange  ‐30~70oC(‐22~158oF)internalandexternalprobes
Temperatureresolution  0.1oC/oF
TemperatureAccuracy  ±0.5oC(0.9oF)forinternalandexternal(TH30)probe
HumiditySensor  Capacitive(RelativeHumidity)RHT30only
Humidityrange  0.1~99.9%RH
Humidityresolution 0.1%RH
HumidityAccuracy ±3%at25oC(10~90%RH),±5%allotherranges
LoggerType  Re‐usable
Dataloggercapacity TH30:24000airtemperature/24000externalprobetemp.readings
  RHT30:24000temperature/24000humidity(RH%)readings
Samplingintervals  30secondsand5,10,30,60,90,120minutes
Startdelaytime  0,5,30,45,60,90,120minutes,and24hours
Alarmranges  Temp:‐30~70oC(‐22~158oF);Humidity:1to99%RH
Alarmdelay(inhibit) 0,5,30,45,60,90,120minutes
Alarmtypes  SingleEvent,Cumulative,andDisable
OperationButtons  Power/Start‐Stop,MARK,MAX‐MIN
Operatingtemperature ‐30~70oC(‐22~158oF)forlogging;Allowloggertoreturnto
roomtemperaturebeforeconnectingtoPC
OperatingRelativeHumidity <80%RH
Storagetemperature ‐40~85oC(‐40~185oF)
StorageHumidity<90%RH
Dimensions   80(L)x43(W)x2.5(D)mm(3.2x1.7x0.1”)
Weight   90g(3.2oz.)
Battery   Two(2)3.0VCR2032batteries(pre‐installed)
Batterylife  Three(3)months
SafetyComplianceCE
WarrantyOneYear

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Maintenance
BatteryReplacement
Thebatterycompartmentislocatedonthebackofthedataloggerasshowninthe
Descriptionssection.Whenthebatterysymbolflashesonthedisplay,replacethe
batteriespromptly.
1. Usingalargecoin,rotatethebatterycompartmentlidclockwiseapproximately
onequarterturntoopenthecompartment
2. Replacethetwo(2)CR2032batterieswithpositive(+)sidefacingup
3. Replacethebatterycompartmentlidandturncounterclockwisetosecureit
4. Disposeofbatteriesinaccordancewithcountry,state,andlocalregulations

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.
BatteryStatusCheck
Tochecktheapproximatenumberofdaysofbatteryliferemaining,shortpressthe
MARKbutton.Thedisplaywillshowthenumberofdaysandthe‘d’fordays(XXd).
Cleaning
Wipethedataloggerwithadampcloth,donotusesolventsorabrasivesasthesemay
damagethedataloggerfinishanddisplaylens.
ErrorDisplayCodes
ERRORCAUSESOLUTION
Dashes
‐‐‐‐‐.‐
Externalprobeunplugged(TH30only)Checktheconnectionbetween
theexternalprobeandlogger
E02MeasuredvaluebelowspecifiedrangeOperateinthespecifiedrange
E03MeasuredvalueabovespecifiedrangeOperateinthespecifiedrange
E04Temperatureerror(RHT30only)ContactExtechforservice
E11Humiditycheckfailed(RHT30only)ContactExtechforservice
E31MicroprocessorfailedContactExtechforservice
E33HumiditymeasurementerrorContactExtechforservice
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