Extech Instruments RHT10 User manual

Brand: Extech Instruments

Model: RHT10

Type: User manual

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RHT10 HW_SW-en-US_V5.6.2 6/16

Introduction

Congratulations on your purchase of the Relative Humidity and Temperature 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Windows

Software

 GrainsperpoundindicationviaoptionalWindows

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

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



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leav etheRHT10connectedtotheUSB

portforaprolongedperiodoftime

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.



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(2

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.

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 LE Ds, 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log ging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.



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(1

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.



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.



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(4

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(3

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.



RHT10 HW_SW-en-US_V5.6.2 6/16

GRAINSPERPOUND(GPP)(RHT10‐SW)

GPPvaluesareobtainedonlybypurchasingandloadingtheoptionalRHT10‐SWsoftware.



TheoptionalsoftwarecanbepurchasedthroughanExtechdistributorusingthepartnumber

RHT10‐SW.

NotethatthestandardRHT10softwaremustbeun‐installedbeforetheoptionalRHT10‐SW

softwarecanbeinstalled.



To view GPP data, click on the VIEW menu heading and scroll down to the SHOW TRACES tab.

EnsurethattheGPPline ischecked.Ifchecked,the graphwilldisplayGPPdata.Ifunchecked,the

graphwillnotshowGPPdata.



RHT10 HW_SW-en-US_V5.6.2 6/16

RHT10LEDSTATUSGUIDE

LEDs Meaning Action



RecordAlarm

NoLEDsflashing

‐Nologginginpro cess

Or

‐Nobatteryfound

Or

‐Batterycompletelydischarge d

Fitbatteryinplace



Replacethebatteryand

downloadthedata



RecordAlarm

Greensingleflashevery10sec.*

‐Logging,noalarm**



Greendoubleflashevery10sec.*

‐Delayedstart

To start, Hold the start button

untilGreenandYellowLEDflash



RecordAlarm



Redsingleflashevery10sec. *

‐Logging,lowalarmforRH

Reddoubleﬂashevery10sec.‡

‐Logging,highalarmforRH



Redsingleflashevery60sec.

‐LowBattery

†



Logging, if enabled, will stop

automatically. No data will be

lost.Replacebatt ery



RecordAlarm

Yellowsingleflashevery10sec.*

‐Logging,lowalarmforTEMP

Yellowdoubleﬂashevery10sec.‡

‐Logging,highalarmforTEMP



Yellowsingleflashevery60sec.

‐RHT10memoryfull



Downloaddata



* Tosavepower,theRHT10’sLEDflashingcyclecanbechangedto20sor30sviathesuppliedsoftware.

** Tosavepower,alarmLEDsfortemperaturecanbedisabledviathesuppliedsoftware.

†

 When the battery is low, all operations will be disabled automatically.NOTE: Logging

automaticallystops when the battery weakens (logged data will be retained).The supplied

softwareisrequiredtorestartlogg ingandtodownloadloggeddata.

‡ When both temperature and relative humidity readings exceed alarm level  simultaneously,

LED

statusindicationalternateseveryothercycle.

RHT10 HW_SW-en-US_V5.6.2 6/16

Specifications

RelativeHumidity OverallRange 0to100%

Accuracy(0to20and80to100%) ±5.0%

Accuracy(20to40and60to80%) ±3.5%

Accuracy(40to60%) ±3.0%

Temperature OverallRange‐40to158

F(‐40to70

C)

Accuracy(‐40to‐10and+40to

+70

C)

±2

C

Accuracy(‐10to+40

C) ±1

C

Accuracy(‐40to+14and104to

158

F)

±3.6

F

Accuracy(+14to104

F) ±1.8

F

DewPointTemperature OverallRange‐40to158

F(‐40to70

C)

Accuracy(25

C,40to100%RH) ±4.0

F(±2

C)

Grainsperpound 1120gpp(160g/kg)max.;AvailableonlywithoptionalRHT10‐SWsoftware

Loggingrate Selectablesamplinginterval:From2secondsupto24hours

Operatingtemperature ‐31to176

F(‐35to80

C)

Batterytype 3.6VLithium(1/2AA)(SAFTLS14250,TadiranTL‐5101orequivalent)

Batterylife 1year(typ.)depe nding onloggingrate,ambienttemperature,&useof

AlarmLEDs

Dimensions/Weight 4x1x.9”(101x25x23mm)/6oz(172g)

RHT10 HW_SW-en-US_V5.6.2 6/16

BatteryReplacement



It is highly recommended that the battery be replaced every 12 months, or prior to

loggingcriticaldata.



The RHT10 does not lose its stored readings when the battery weak ens or when the battery is

replaced; the data logging process will howeverbe stopped and cannot be re‐started

until the

batteryhasbeenreplacedandtheloggeddatahasbeendownloadedtoPC.



Useonly3.6Vlithiumbatteries.Beforereplacingthebattery,removethedataloggerfromthePC.

Followdiagrammaticsteps1through4below.



NOTE:LeavingtheRHT10pluggedintothePCUSBportlongerthannecessary

willcausesomeof

thebatterycapacitytobelost.



WARNING:Handlelithiumbatteriescarefully,observewarningsonbatterycasing.Disposeofin

accordancewithlocalregulations.



Safety: Please dispose of batteries responsibly; never dispose of batteries in a fire, batteries may

explodeorleak.If themeterisnottobeusedfor 60 days ormore,removethebattery and store

separately.



RHT10 HW_SW-en-US_V5.6.2 6/16

Warranty

FLIRSystems,Inc.warrantsthisExtechInstrumentsbranddevicetobefreeofdefectsinpartsandworkmanshipforoneyear

fromdateofshipment(asixmonthlimitedwarrantyappliestosensorsandcables).Ifitshouldbecomenecessarytoreturnthe

instrumentforserviceduringorbeyondthewarranty

period,contacttheCustomerServiceDepartmentforauthorization.Visit

thewebsitewww.extech.comforcontactinformation.AReturnAuthorization(RA)numbermustbeissuedbeforeanyproductis

returned.Thesenderisresponsibleforshippingcharges,freight,insuranceandproperpackagingtopreventdamageintransit.

Thiswarrantydoesnotapplytodefectsresultingfromactionoftheusersuchasmisuse,improperwiring,operationoutsideof

specification,impropermaintenanceorrepair,orunauthorizedmodification.FLIRSystems,Inc.specifically

disclaimsanyimplied

warrantiesormerchantabilityorfitnessforaspecificpurposeandwillnotbeliableforanydirect,indirect,incidentalor

consequentialdamages.FLIR’stotalliabilityislimitedtorepairorreplacementoftheproduct.Thewarrantysetforthaboveis

inclusiveandnootherwarranty,whetherwritten

ororal,isexpressedorimplied.

Calibration,Repair,andCustomerCareServices

FLIRSystems,Inc.offersrepairandcalibrationservicesfortheExtechInstrumentsproductswe

sell.WeofferNISTtraceablecalibrationformostofourproducts.ContactourCustomerService

Departmentforinformationoncalibrationserviceavailability.Annualcalibrationsshouldbe 

performedtoverifymeterperformanceandaccuracy.Technicalsupportandgeneralcustomer

serviceisalsoprovided,refertothecontactinformationprovidedbelow.

Allrightsreservedincludingtherightofreproductioninwholeorinpartinanyform

www.extech.com

SupportLines:U.S.(877)239‐8324;International:+1(603)324‐7800

TechnicalSupport:Option3;E‐mail:support@extech.com

Repair&Returns:Option4;E‐mail:repair@extech.com

Productspecificationsaresubjecttochangewithoutnotice

Pleasevisitourwebsiteforthemostup‐to‐dateinformation

www.extech.com

FLIRCommercialSystems,Inc.,9Townsend West,Nashua,NH03063USA

ISO9001Certified

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Extech Instruments RHT10 User manual

Extech Instruments RHT10 User manual

Extech Instruments RHT10 User manual

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