Extech Instruments RHT10 Manuel utilisateur

USERGUIDE



Humidity/TemperatureDatalogger



ModelRHT10

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RHT10 HW_SW-en-US_V5.6.2 6/16

Introduction

CongratulationsonyourpurchaseoftheRelativeHumidityandTem peratureDatalogger.This

dataloggermeasuresandstoresupto16,000relativehumidityand16,000temperaturereadings

over0to100%RHand‐40to+70°C(‐40to+158°F)measurementranges.Theusercaneasily

configuretheloggingrate,high/lowalarmandstart‐mode,anddownloadthestoreddataby

pluggingthemoduleintoaPC'sUSBportandrunningthesuppliedPCsoftware.RelativeHumidity,

TemperatureandDewPointdatacanthenbegraphed,printedandexportedtootherapplications.

GPP(grainsperpound)datacanbeviewedusingtheoptionalRHT10‐SWsoftware.Thedatalogger

issuppliedwithalong‐lifelithiumbattery,whichcantypicallyallowloggingforoneyear.Thismeter

isshippedfullytestedandcalibratedand,withproperuse,willprovideyearsofreliableservice.

Pleasevisitourwebsite(www.extech.com)tocheckforthelatestversionofthisUserGuide,

ProductUpdates,andCustomerSupport.



Features

Memoryfor32,000readings(16,000temperatureand16,000humidityreadings)

DewpointindicationviasuppliedWindowsTMSoftware

GrainsperpoundindicationviaoptionalWindowsTMSoftware(orderRHT10‐SW)

Selectabledatasamplingrate:2s,5s,10s,30s,1m,5m,10m,30m,1hr,2hr,3hr,6hr,12hr,

24hr

StatusIndicationviaRed/YellowLEDandGreenLED

USBInterfaceforSet‐upandDataDownload

User‐ProgrammableAlarmThresholdsforRelativeHumidityandTemperature

Longbatterylife

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RHT10 HW_SW-en-US_V5.6.2 6/16

Description

1. Protectivecover

2. USBconnectortoPCport

3. Startbutton

4. RHandTemperaturesensors

5. AlarmLED(red/yellow)

6. RecordLED(green)

7. Mountingclip



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RHT10 HW_SW-en-US_V5.6.2 6/16

Operation

SystemSoftwareRequired:

Windows7,Windows8.1orWindows10

MinimumHardwareRequired:

PCorNotebookwithPentium90MHzorhigher32MBRAM;

Atleast7MBofharddiskspaceavailabletoinstallDataloggerUSBsoftware.

Recommendeddisplayresolution1024X768withHighColor(16bit).

INSTALLINGTHEGRAPHINGSOFTWAREandUSBdriver

InstallthesuppliedWindowsPCDataloggerSoftwarebyplacingthesuppliedprogramdiskinthe

PC’sCD‐ROMdriveorbydownloadingtheprogramfromthe

http://Extech.com/instruments/software.aspwebpage.



Iftheinstallationprogramdoesnotautomaticallyopenandprovideon‐screenprompts,openand

browsetheCD‐ROMdrive,thenfindanddouble‐clickontheSETUP.EXEfileincludedonthe

programdisk.Followtheon‐screenpromptstocompletetheinstallation.

SoftwareInstall

RunSETUP.up.exeandfollowthedefaultstoinstallheRTH10software

USBDriverInstall

1.OpentherootfolderoftheRHT10.

2.OpenthefolderDriver\DriverUSBXPRESSanddouble‐clickonUSBXpressInstaller.exe.

3.FollowthedefaultchoicestoloadthisUSBXpressdriver.



Note:WhentheRHT10isconnectedtotheUSBport,thebatteryinsidethedeviceisdischargedat

ahigherratethannormal.Toconservebatterylife,donotleavetheRHT10connectedtotheUSB

portforaprolongedperiodoftime

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RHT10 HW_SW-en-US_V5.6.2 6/16

RUNNINGTHEGRAPHINGSOFTWARE



WiththeRHT10insertedinthePC’sUSBport,double‐clicktheDataloggerGraphicononyour

desktoptolaunchtheprogram.Theopeningscreenwillappearasshownbelow.



Clickon“Connect”toopenthemainscreen,

Clickon“About”toviewtheversionnumber,



Clickon“ViewFile”toopenanexistingfile,

Clickon“Quit”toclosetheprogram.



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RHT10 HW_SW-en-US_V5.6.2 6/16

MENUBARDESCRIPTION

Themainmenuforthesoftwareappearsasfollows:



FromlefttorighttheMENUBARiconsrepresentDATADOWNLOAD,LOGGERSETUP,FILEOPEN,

FILESAVE‐AS,FILEPRINT,VIEWALL,andZOOM.Inaddition,theFILE,VIEW,LINK,andHELP

pull‐downmenusareavailablehere.Allofthesefunctionsaredescribedinthefollowing

paragraphs.

LOGGERSETUP 

Clickonthecomputericononthemenubar(2ndfromleft)orselectLOGGERSETfromtheLINK

pull‐downmenu.TheSetupwindowwillappearasshownbelow;descriptionsforeachfieldin

theSetupwindowarelisteddirectlybelowtheillustration:



TheCURRENTTIMEfieldwillautomaticallysynchronizewiththePCdateandtimesetting.

TheMANUALandINSTANTselectbuttonsallowtheusertostartdataloggingimmediately

whentheSetupwindowisexited(INSTANT),oratalatertime(MANUAL).

TheLOGGERNAMEfieldallowstheusertoselectauniquenamefortheRHT10.

TheSAMPLEPOINTSfieldinstructstheRHT10totakeafixednumberofreadings.

TheSAMPLERATEpull‐downmenuinstructstheRHT10tologreadingsataspecificrate.

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RHT10 HW_SW-en-US_V5.6.2 6/16

TheLEDFlashCyclecanbesetbytheuser:longercycletimeshelptoextendthebattery

life.

TheALARMSETTINGSareaoftheSETUPwindowallowstheusertosethighandlow

temperatureandhumiditylimitsandtodisabletheflashingoftheRHT10’sLEDs,thereby

conservingbatteryenergy.



Oncethechangeshavebeenmade,clickontheSETUPbuttontosavethem.PresstheDEFAULT

buttontosettheRHT10backtofactorydefaultconditions.PresstheCANCELbuttontoabortthe

setup.



Note:AnystoreddatawillbepermanentlyerasedwhentheuserclicksonSetup.Tosavethe

databeforecreatinganewsetup,clickCancelandthendownloadthedata.



Note:ThebatterymayrunoutbeforetheRHT10hasfinishedcollectingaspecifiednumberof

samplepoints.Alwaysensurethattheremainingchargeinthebatteryissufficienttolast

thecompletedurationofyourloggingexercise.Whenindoubt,werecommendthatyou

alwaysinstallafreshbatterybeforeloggingcriticaldata.



IfINSTANTwasselectedintheSETUPwindow,theRHT10beginsloggingattheinstanttheSETUP

buttonispressed.IfMANUALwasselected,theRHT10mustbemanuallystartedbypressingand

holdingthedevice’syellowbuttonforapprox.3seconds,oruntilthetwoLEDsontheRHT10flash

atthesametime.



Loggingwillcontinueattheprogrammedsamplerateuntilthenumberofreadings(samplepoints)

specifiedintheSetupwindowisreached.



ThegreenLEDflashesoncepersamplepointandtheredoryellowLEDflasheswhenuser

programmedalarmlimitsareexceeded.Fordetails,seeLEDstatusguide.



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RHT10 HW_SW-en-US_V5.6.2 6/16

DATADOWNLOAD 

TotransferthereadingsstoredintheRHT10tothePC:

1. ConnecttheRHT10tothesameUSBportusedwhentheRHT10wasinitialized.

2. Openthegraphingsoftwareprogramifitisnotstillrunning.

3. ClicktheDownloadicon(1stontheleft)orselectDataDownloadfromtheLINK

pull‐downmenu

4. TheWindowshownbelowwillappear.PressDOWNLOADtobegintransferring

readings



Ifthereadingsaresuccessfullytransferred,theVIEWscreenandtheSAVEscreen(bothshown

below)willappear.IntheSAVEscreen,namethefileandsaveittoaconvenientlocation.The

dataissavedasan.recfileforuseinthisprogramonly.Atalatertime,theusercanselect

SAVE‐ASandsavethedataasanExcel,Text,orBitmapfile(explainedinnextsection).



InthescreenbelowpressVIEWtoseethedatagraphically.Iftherearenoreadingscurrently

storedintheRHT10,theprogramwilllettheuserknowviaawarningscreen.



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RHT10 HW_SW-en-US_V5.6.2 6/16

WhenVIEWispressed,theDataGraphwindowappears,



TheDataGraphwindowpresentsthetransferreddatainanx‐ygraphformatwithDate/Time

representedonthehorizontalaxisandTemperature/RelativeHumidity/DewPoint/Grainsper

poundGPP(withoptionalRHT10‐SWonly)/AlarmLimitsrepresentedontheverticalaxis:







Tozoominandoutofdataregions,thereareseveralapproaches:



1. Usethemousetoclickanddragaboxaroundanydataareatomagnifytheselected

area.

2. Clickonthezoommagnifiericontoolonthemenubar

3. SelectVIEWALLorZOOMOUTfromtheVIEWpull‐downmenu.



Intheexamplegraphabove,theTemperatureisrepresentedbythesolidredline(thelinesare

knownas‘traces’);theRHandDewPointarerepresentedbythesolidyellowandgreenlines,

respectively.Thelowandhighalarmvaluesfortemperaturearerepresentedbythedashedred

traces;thecorrespondingalarmsforhumidityarerepresentedbythedashedyellowtraces.



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RHT10 HW_SW-en-US_V5.6.2 6/16

TocustomizethegraphwindowselectSHOWTRACES,BACKGROUND,GRIDLINES,andMASK

POINTSfromtheVIEWpull‐downmenu.Theseoptionsprovidethefollowingfeatures:



SHOWTRACES:Allowstheusertoselectwhichdatatoviewasatrace(Temperature&

Alarms).

BACKGROUND:Selectbackgroundcolorscheme.

GRIDLINES:Addorremovegridlinesfromxandyaxes.

MASKPOINTS:Placesdotsonthetracesfortheactualdatapoints,breakingupthe

continuousnatureofthetrace.



FILEOPEN,FILESAVE‐AS

Tosavethetransferreddatainaformatotherthantheproprietary.recformat,clicktheSAVEAS

iconfromthemenubar(4thfromright)orselectSAVEASfromtheFILEpull‐downmenu.Thedata

canbesavedinthefollowingformats:



TEXTFILE(.txt)

EXCELFILE(.xls)

BITMAPFILE(.bmp)



Toopenanexistingdatafileforviewingonthedatagraphwindow,clickontheFILEOPENiconon

themenubar(3rdfromleft),orselectFILEOPENfromtheFILEpull‐downmenu.Whenprompted,

selecta.recfilesavedearlier.



FILEPRINT

Toprintadatagraphwindowtoalineornetworkprinter,clickontheprintericonorselectPRINT

fromtheFILEpull‐downmenu.Notethatcolorgraphwindowscanbeaccuratelyprintedoncolor

printers.



Note:TheRHT10retainsdatainitsinternalmemoryuntiltheuserbeginsanewloggingsession.

StartinganewloggingsessionclearsalloftheRHT10’sstoredreadings;besuretosave

previousdatabeforestartinganewloggingsession.



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