Extech Instruments TM20 User manual

1TM20-TM25-EU-EN V1.6 4/13
USERGUIDE
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PortableThermometers
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ModelTM20thermometerwithstandardprobe
ModelTM25thermometerwithpenetrationprobe
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2TM20-TM25-EU-EN V1.6 4/13
Introduction
ThankyouforselectingthisExtechPortableThermometerforhomeuse.Thisdeviceisintended
foruseinmeasuringthetemperatureofair,liquid,paste,orsemi‐solidmaterials.TheTM20
usesastandardtemperatureprobewhiletheTM25isequippedwithapenetrationprobefor
insertionintomaterialsundertest.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.
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Safety
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InternationalSafetySymbols
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Thissymbol,adjacenttoanothersymbolorterminal,indicatestheusermustrefertothe
manualforfurtherinformation.
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Thissymbol,adjacenttoaterminal,indicatesthat,undernormaluse,hazardousvoltages
maybepresent
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Doubleinsulation
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GeneralSafety
oPleasereadallsafetyandinstructionalinformationbeforeusingtheseproducts.
oTheseproductsareintendedforhomeuseonlyonair,liquid,pastes,andsemi‐solid
materials.
oUnauthorizedrepairs,modifications,orotherchangestotheproductsarenotsupported.
oThisproductisnotintendedforuseinmedicalpractice.
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3TM20-TM25-EU-EN V1.6 4/13
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Caution!RiskofInjury!
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oKeeptheseproducts,theirprobes,andbatteriesoutofthereachofchildrenandpets
oUseextremecautionwhenhandlingtheprobes
oBatteriesmustnotbeplacedinfire,shortcircuited,takenapart,ordischarged.Riskof
explosion!
oBatteriescanbefatalifswallowed.Contactmedicalemergencypersonnelifbatteriesare
swallowed.
oBatteriescontainharmfulacids.Lowbatteriesshouldbechangedassoonaspossibleto
preventdamagecausedbyleakingbatteries.
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ProductSafety!
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oDonotplacetheseproductsnearextremetemperatures,vibration,orshock
oOnlytheprobesareheatresistantto392oF(200oC)fortheTM25probeandto158oF(70oC)
fortheTM20probe,notthemetersthemselves
oNeverholdaprobedirectlyinoroverfire
oDonotimmersethemetersinanyliquid
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4TM20-TM25-EU-EN V1.6 4/13
Description
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MeterDescription
1. Meter
2. LCDdisplay
3. PowerON/OFFbutton
4. MAX/MINbutton
5. ALARM/SETbutton
6. Temperatureunits/uparrowbutton
7. Meterstand/base
8. Sensorcabling
9. Sensortips
10. Probemountingbracket
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Note:Wallmountaccessholeand
magnetonrearofinstrumentnot
pictured
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AdvancedDisplaySymbols
1. Lowbatterysymbol
2. Alarmsymbol
3. FlashingAlarmAlert
4. HighAlarmsymbol
5. LowAlarmsymbol
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5TM20-TM25-EU-EN V1.6 4/13
Operation
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DisplayProtectiveFoil
Themeter’sdisplayisshippedwithaprotectivefoilcovering.Pleaseremovecarefullybefore
use.
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Poweringthemeter
Openthebatterycompartmentbylooseningthetwoscrewslocatedonthebackofthemeter
(oneithersideofthemagnet).InsertanewCR20323Vlithiumbuttonbatteryandclosethe
cover.Ifabatteryisalreadyinstalled,removetheinsulationstripsothatthebatterycanmake
propercircuitcontact.
Theinstrumentisnowreadyforuse.PresstheON/OFFkeyoncetopowerthemeter.The
meter’sprevioussettingswillbepreserved.
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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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OtherBatterySafetyReminders
oNeverdisposeofbatteriesinafire.Batteriesmayexplodeorleak.
oNevermixbatterytypes.Alwaysinstallnewbatteriesofthesametype.
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SelectingoC/oFunitsofmeasure
PresstheoC/oFkeytoselectthedesiredtemperatureunitofmeasure.
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MAX‐MINandHOLDFunction
Tofreeze(hold)thedisplayedreading,presstheMAX/MINkey.Thecurrentreadingwillbeheld
onthedisplayandtheHOLDdisplayiconwillbevisible.PressMAX/MINagaintoviewthe
Maximumreadingcapturedsincethelastreset;theMAXindicatorwillbevisiblealongwiththe
MAXreading.PressMAX‐MINagaintoviewtheMinimum(MIN)temperaturereading;theMIN
iconwillbevisiblealongwiththelowestreadingcapturedsincethelastreset.ToresettheMAX
andMINvaluespressandholdtheMAX‐MINbuttonfor3secondswhiletheMAXorMINiconis
visible.ToreturntonormaloperationpresstheMAX/MINkeyagain;theHOLD‐MIN‐MAX
indicatorsshouldnowbeoff.
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6TM20-TM25-EU-EN V1.6 4/13
TemperatureAlarms
Sethigh/lowalarmlimitsandthemeterwillaudiblyandvisuallyalerttheuserifeitherlimitis
exceeded.Tosetthealarmvalues,followthesesteps:
1. PresstheALARM/SETbuttononcefromthenormaloperatingmode;theupperlimitvalue
anditssymbol(uparrow)willflash.
2. Setthetemperaturelimitbypressingthe▲button(pressandholdforfastscrolling).
3. NowusetheMAX/MINbuttontoactivate/deactivatethealarm(alarmsymbolwillappear
intheupperrighthandcorneroftheLCDwhenactivated).
4. VerifythesettingbypressingALARM/SET.
5. Performthesamestepsforthelowalarmlimit.
Aftersettingthealarms,theupperandlowerlimitsymbols(▲▼)willbedisplayedontheLCD
indicatingthatanupperandaloweralertvaluehasbeenset.Ifthemeasuredtemperature
exceedseitherlimit,thealarmbeeperwillsoundfor1minute.Thealarmbeepericonandthe
correspondingarrowwillflash.Pressinganybuttonwillswitchoffthealarm.
Whenthetemperaturereturnstothedesiredrangetheaudiblealarmwillstopsounding.The
arrowwillremainflashinghowevertoshowthatthetemperaturewashigherorlowerthanaset
valueatleastonceinthepast.Pressthe▲buttontoswitchOFFtheflashingarrow.
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Specifications
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Display  Multi‐functionLCD
MeasurementrangeTM20:‐40to70oC(‐40to158oF)
TM25:‐40to200oC(‐40to392oF)
Resolution 0.1oC/oF
Accuracy 0.5oC:0oto24oC
1.0oC:‐20oto‐1oCand25oto49oC
2.0oC:‐40oto‐21oCand50oto200oC
0.9oF:32oto75oF
1.8oF:‐4oto31oFand76oto120oF
3.6oF:‐40oto‐5oFand121oto392oF
ProtectionsafetyratingIP65ratingonmeterandsensors
LowbatteryindicationBatterysymbolappearsontheLCD
Powersupply CR20323Vbuttonbattery
MeterDimensions86(L)x57(H)x30(D)mm/3.4(L)x2.2(H)x1.2(D)"
Cablelength TM20cable:209m(9.6ft.)
TM25cable:1.5m(5ft.)
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Copyright©2013FLIRSystems,Inc.
Allrightsreservedincludingtherightofreproductioninwholeorinpartinanyform
www.extech.com