Extech Instruments TM20 Manuale utente
USERGUIDE
PortableThermometers
ModelsTM20,TM25,andTM26
TM20Thermometer
StandardProbe
TM25Thermometer
PenetrationProbe
TM26Thermometer
PenetrationProbe
NSFCertified
SoundReflector
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
2TM2x‐en‐GB_V2.15/15
Introduction
ThankyouforselectingtheExtechPortableThermometer.TheTMseriesthermometersareideal
forhomeuse.Measurethetemperatureofair,liquid,paste,orsemi‐solidmaterials.
TheTM20usesastandardtemperatureprobewhiletheTM25andTM26areequippedwitha
penetrationprobeforinsertionintomaterialsundertest.TheTM26functionsthesameasthe
TM25buttheTM26includesasoundreflectorforamplifyingitsbeeperandisNSFcertified,
meetingtherequirementsforuseinthefoodserviceindustry.
Thesedevicesareshippedfullytestedandcalibratedand,withproperuse,willprovideyearsof
reliableservice.
Specifications
Display Multi‐functionLCD
MeasurementrangeTM20:‐40to70oC(‐40to158oF)
TM25/TM26:‐40to200oC(‐40to392oF)
Resolution 0.1oC/oF
Accuracy ±0.5oC:0oto24oC
±1.0oC:‐20oto‐1oCand25oto49oC
±2.0oC:‐40oto‐21oCand50oto200oC
±0.9oF:32oto75oF
±1.8oF:‐4oto31oFand76oto120oF
±3.6oF:‐40oto‐5oFand121oto392oF
ProtectionsafetyratingIP65ratingonmeterandsensors
LowbatteryindicationBatterysymbolappearsontheLCD
Powersupply CR20323Vbuttonbattery
MeterDimensions 86(L)x57(H)x30(D)mm[3.4(L)x2.2(H)x1.2(D)"]
Cablelength TM20cable:2.9m(9.6’)
TM25/TM26cable:1.5m(5’)
3TM2x‐en‐GB_V2.15/15
Safety
InternationalSafetySymbols
Thissymbol,adjacenttoanothersymbolorterminal,indicatestheusermustrefertothe
manualforfurtherinformation.
Thissymbol,adjacenttoaterminal,indicatesthat,undernormaluse,hazardousvoltages
maybepresent
Doubleinsulation
GeneralSafety
oPleasereadallsafetyandinstructionalinformationbeforeusingtheseproducts.
oTheseproductsareintendedforhomeuseonlyonair,liquid,pastes,andsemi‐solid
materials.
oUnauthorizedrepairs,modifications,orotherchangestotheproductsarenotsupported.
oThisproductisnotintendedforuseinmedicalpractice.
Caution!RiskofInjury!
oKeeptheseproducts,theirprobes,andbatteriesoutofthereachofchildrenandpets
oUseextremecautionwhenhandlingtheprobes
oBatteriesmustnotbeplacedinfire,shortcircuited,takenapart,ordischarged.Riskof
explosion!
oBatteriescanbefatalifswallowed.Contactmedicalemergencypersonnelifbatteriesare
swallowed.
oBatteriescontainharmfulacids.Lowbatteriesshouldbechangedassoonaspossibleto
preventdamagecausedbyleakingbatteries.
ProductSafety!
oDonotplacetheseproductsnearextremetemperatures,vibration,orshock
oOnlytheprobesareheatresistantto392oF(200oC)fortheTM25/TM26probeandto158oF
(70oC)fortheTM20probe,notthemetersthemselves
oNeverholdaprobedirectlyinoroverfire
oDonotimmersethemetersinanyliquid
4TM2x‐en‐GB_V2.15/15
12 3
4
5
6
78
9
10
11
Description
MeterDescription
1. Meter
2. LCDdisplay
3. PowerON/OFFbutton
4. MAX/MINbutton
5. ALARM/SETbutton
6. Temperatureunits/uparrowbutton
7. Meterstand/base
8. Sensorcabling
9. Sensortips
10. Probemountingbracket
Note:Wallmountaccesshole,magnet,andsoundreflector(TM26only)onrearofinstrument,
notpictured.
DisplaySymbols
1. Batterypowerstatus
2. Measurementreading
3. Alarmarmedsymbol
4. TemperatureDegreessymbol
5. HighAlarmsymbol
6. LowAlarmsymbol
7. CorFunitofmeasure
8. Data(Display)Hold
9. MAXreadingdisplay
10. MINreadingdisplay
11. ERROR(Batteryvoltagetoolowtodisplayaccuratereadings)
5TM2x‐en‐GB_V2.15/15
Operation
DisplayProtectiveFoil
Themeter’sdisplayisshippedwithaprotectivefoilcovering.Pleaseremovecarefullybefore
use.
Poweringthemeter
Openthebatterycompartmentbylooseningthetwoscrewslocatedonthebackofthemeter
(oneithersideofthemagnet).InsertanewCR20323Vlithiumbuttonbatteryandclosethe
cover.Ifabatteryisalreadyinstalled,removetheinsulationstripsothatthebatterycanmake
propercircuitcontact.
Theinstrumentisnowreadyforuse.PresstheON/OFFkeyoncetopowerthemeter.The
meter’sprevioussettingswillbepreserved.
AllEUusersarelegallyboundbythebatteryordinancetoreturnallusedbatteriestocollection
pointsinyourcommunityorwhereverbatteries/accumulatorsaresold!Disposalinthehousehold
trashisprohibited!
SelectingoC/oFunitsofmeasure
PresstheoC/oFkeytoselectthedesiredtemperatureunitofmeasure.
MAX‐MINandHOLDFunction
Tofreeze(hold)thedisplayedreading,presstheMAX/MINkey.Thecurrentreadingwillbe
heldonthedisplayandtheHOLDdisplayiconwillbevisible.
PressMAX/MINagaintoviewtheMaximumreadingcapturedsincethelastreset;theMAX
indicatorwillbevisiblealongwiththeMAXreading.
PressMAX‐MINagaintoviewtheMinimum(MIN)temperaturereading;theMINiconwillbe
visiblealongwiththelowestreadingcapturedsincethelastreset.
ToresettheMAXandMINvaluespressandholdtheMAX‐MINbuttonfor3secondswhile
theMAXorMINiconisvisible.
ToreturntonormaloperationpresstheMAX/MINkeyagain;theHOLD‐MIN‐MAXindicators
shouldnowbeoff.
SoundReflector(TM26only)
TheTM26includesasoundreflectorontherearoftheunit.Thisdeviceamplifiestheaudible
beepersoastobeheardfromgreaterdistances.
NSFCertified(TM26only)
TheTM26isNSFCertified,meetingtherequirementsforuseinthefoodserviceindustry.
6TM2x‐en‐GB_V2.15/15
TemperatureAlarms
Sethigh/lowalarmlimitsasdescribedbelow.Themeterwillthenaudiblyandvisuallyalertthe
userifeitherlimitisexceeded:
1. PresstheALARM/SETbuttononcefromthenormaloperatingmode;theupperlimitvalue
anditssymbol(uparrow)willflash.
2. Setthetemperaturelimitbypressingthe▲button(pressandholdforfastscrolling).
3. NowusetheMAX/MINbuttontoactivate/deactivatethealarm(alarmsymbolwillappear
intheupperrighthandcorneroftheLCDwhenactivated).
4. VerifythesettingbypressingALARM/SET.
5. Performthesamestepsforthelowalarmlimit.
Aftersettingthealarms,theupperandlowerlimitsymbols(▲▼)willbedisplayedontheLCD
indicatingthatanupperandaloweralertvaluehasbeenset.Ifthemeasuredtemperature
exceedseitherlimit,thealarmbeeperwillsoundfor1minute.Thealarmbeepericonandthe
correspondingarrowwillflash.Pressinganybuttonwillswitchoffthealarm.
Whenthetemperaturereturnstothedesiredrangetheaudiblealarmwillstopsounding.The
arrowwillremainflashinghowevertoshowthatthetemperaturewashigherorlowerthanaset
valueatleastonceinthepast.Pressthe▲buttontoswitchOFFtheflashingarrow.
Copyright©2013‐2015FLIRSystems,Inc.
Allrightsreservedincludingtherightofreproductioninwholeorinpartinanyform
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
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