Extech Instruments IR270 Manual de usuario

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UserManual

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InfraRedThermometer

WithLaserPointerandHigh/LowAlarms

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ModelIR270

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AdditionalUserManualTranslationsavailableatwww.extech.com

2IR270‐en‐GB_V1.012/17

Introduction

ThankyouforselectingtheExtechIR270IRThermometer.TheIR270makesnon‐contact

(infrared)surfacetemperaturemeasurementsandincludesalaserpointerforconvenient

targeting.ThemeterswitchesONandstartsscanningsurfacetemperaturesassoonasyoupull

thetrigger.Thisdevice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andtranslationsofthisUserManualandCustomerSupport.

Features

Measuresnon‐contactsurfacetemperatureupto650°C(1202°F)

Automaticranging

12:1DistancetoSpotRatio(FieldofView)

Laserpointertargeting

AutomaticDataHoldwhentriggerisreleased

High/Lowtemperaturealarms

Maximum,Minimum,Average,andDifferentialdisplays

20‐memorydatalogger

Selectableemissivity

Displaybacklight

Selectabletemperatureunits(°F/°C)

Batterystatusindication

Safety

InternationalSafetySymbols

Thissymbol,adjacenttoanothersymbolorterminal,indicatestheusermustrefertothemanualfor

furtherinformation

Warnings

oDonotdirectlyorindirectlypointthelaserattheeyesofapersonorananimal

oInspectfordamageorforanyshortageofpartsoraccessoriesbeforeuse

oReplacethebatteryimmediatelyafterthebatteryindicatorflashes

oDonotusethethermometernearexplosivegases,steam,ordust

oNotethatanobjectwithhighreflectivitywillnormallycausethe

measuredtemperaturevaluetoreadmuchlowerthantheactual

temperature

oUsethedeviceonlyasdescribedinthisUserManual

Cautions

Toavoidthermometerdamage,pleaseavoidthefollowinghazards:

oEMFfromweldingequipmentorelectro‐inductionheaters

oStaticelectricity

oThermalshockcausedbylargeorabruptenvironmentaltemperaturechanges;wait30minutesto

allowthethermometertostabilizetonewenvironmentalconditions

oDonotusethisdeviceinexcessivelyhightemperatureenvironments

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<1mW Output at 650nm

3IR270‐en‐GB_V1.012/17

Description

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MeterDescription

1. BacklitmultifunctionLCD

2. Laser/Backlight/Logbutton

3. Uparrowbutton

4. Secondarydisplaymodebutton

5. Laserpointerlens

6. IRthermometerlens

7. Downarrowbutton

8. Trigger(pullandholdtoscansurfaces)

9. Batterycompartment(9V)

DisplayDescription

1. MeasurementScanmode.Theiconflasheswhilethetriggerispulled.Thedisplayedreading

representsthetemperatureofthescannedsurface

2. Dataholdmode.Readingisheldaftertriggerisreleased

3. Primarydisplay.Surfacetemperaturereading

4. Dataloggermode

5. Secondarydisplaymodeicons(EMS,MAX,MIN,DIF,

AVG,HAL,LAL)

6. SecondaryDisplayvalue

7. Batterystatusicon.Flasheswhenbatteryvoltageis

criticallylow.

8. Temperatureunits(selectable)

9. Emissivity.Selectablefrom0.10~1.00

10. Laserpointericon.Appearswhenlaserisenabled

4IR270‐en‐GB_V1.012/17

Operation

MeterPower

One9Vbatterypowersthemeter.PullthemetertriggertoswitchthemeterON.Ifthemeter

doesnotswitchON,pleasecheckthebattery(locatedinthemeterhandle);refertothe

Maintenancesectionformoreinformation.Thebatteryiconprovidesbatterystatus;replacethe

batteryassoonasthebatteryiconflashes.ThemeterswitchesOFFsevensecondsafteryou

releasethetrigger(duringtheseven‐secondperiodthelastreadingfreezesonthedisplay).

SurfaceTemperatureMeasurements

1. Holdthemeterbyitshandleandpointittowardthesurfaceundertest.

2. PullandholdthetriggertoturnthemeterONandtoscansurfacetemperatures.Withthe

triggerpulledtheSCANiconflashesintheupperleftareaofthedisplay.Readthemeasured

temperatureintheprimarydisplayarea.

3. If‘HI’appearsonthemainLCDdigits,thetemperaturereadingexceedsthehighrangeofthe

meter.

4. Releasethetrigger;thereadingwillholdforapproximately7seconds,andthenthemeterwill

automaticallyshutoff.

5. RefertotheFieldofViewsectionfordistancetotarget(spot)ratioconsiderations.

6. Themeterdefaultstotheprogrammedconditionsinusewhenthemeterwaslastswitched

OFF.Forexample,ifthelaserissettodefaulttoONandthetemperatureunitsaresettooFat

thetimetheunitisswitchedOFF,theunitwillswitchONandusethesamesettings.

LaserPointerandLCDBacklightDefaultModes

PresstheMbuttonorpull/releasethetriggertoturnthemeterON.Now,pressandreleasethe

buttontostepthroughthesedefaultconditions:

LaserON/BacklightOFF

LaserON/BacklightON

LaserOFF/BacklightOFF

LaserOFF/BacklightON

Whenyouenablethelaser,thelasericon appearsontheupperleft.Tousethelaser,pulland

holdthetriggerandaimthelaserapproximatelyonehalfinchabovethepointoftest.

SelectingtheTemperatureUnitofMeasure(°C/°F)

WiththemeterON,longpresstheMbuttontoswitchthetemperatureunits.Thedisplaybeeps

andswitchesbetween°Cand°F.

LocatingHotorColdSpots

Tolocateahotorcoldspotwhilescanning,aimthemeteroutsidetheareaofinterestthenscan

(inanupanddownmotion)untilthespotislocated.

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5IR270‐en‐GB_V1.012/17

DistancetoSpotRatio(FieldofView)

Themeter’sfieldofviewis12:1(distancetospotratio).For

example,ifthemeteris12inchesfromthetarget(spot),the

diameterofthetargetmustbeatleast1inch.Refertothe

fieldofviewdiagramprintedonthemeterandreproduced

here.

Measuresurfacesfromamaximumdistanceof2feetwheneverpossible.Themetercanmeasure

fromfurtherdistancesbutexternalsourcesoflightmayinterferewiththereadingsandthespot

sizemaybesolargethatitencompassesunintendedsurfaceareas.

Itisnecessarytoensurethatthesizeofthetargetislargerthanthespotsize.Thesmallerthe

target,thecloserthedistanceshouldbe.

MeasurementConsiderations

1. Theobjectundertestshouldbelargerthanthespot(target)size(refertothefieldofview

sectionabove).

2. Removefrost,oil,grime,etc.,fromsurfacebeforetakingmeasurements.

3. Ifanobject'ssurfaceishighlyreflective,applymaskingtapeorflatblackpainttothesurface

beforemeasuring.

4. Themetermaynotmakeaccuratemeasurementsthroughtransparentsurfacessuchasglass.

5. Steam,dust,smoke,etc.canobscuremeasurements.

6. Themetercompensatesfordeviationsinambienttemperaturebutitcantakeupto30

minutesforthemetertoadjusttowideambienttemperaturechanges.

7. Tofindahotspot,aimthemeteroutsidetheareaofinterestthenscan(inanupanddown

motion)untilthehotspotislocated.

SecondaryDisplayModes

Thesecondarydisplayareaislocatedonthebottomofthemeter’sLCD.Youcanstepthroughthe

secondarydisplaymodesbysimplyshortpressingtheMODE(M)buttonfromapoweredONor

poweredOFFcondition.

Themodeiconappearsonthelowerleftanditsassociatedvalueappearsonthelowerright

(exceptforemissivity;itsvalueappearsontheupperright).Usethearrowbuttonstomake

changestoasettingwhereapplicable.Refertothesections,below,fordetailedinformationfor

eachmode.

Forbestresults,pullandreleasethetriggertoswitchthemeterON,usetheMbuttontoselect

thedesiredmode,andthenpullthetriggertobeginmeasuringwiththedesiredmodenowactive.

MaximumReading(MAX)

UsetheMbuttontosteptotheMAXparameter,thenpullandholdthetriggertostartscanning

surfacetemperatures.Thereadingonthelowerrightrepresentsthehighestreadingrecorded

duringthecurrentmeasurementscan.WhenpressingMfromapoweredOFFcondition,the

valueshownonthelowerrightisthehighestreadingrecordedduringthelastmeasurement

scanperformed.

6IR270‐en‐GB_V1.012/17

MinimumReading(MIN)

UsetheMbuttontosteptotheMINparameter,thenpullandholdthetriggertostartscanning

surfacetemperatures.Thereadingonthelowerrightrepresentsthelowestreadingrecorded

duringthecurrentmeasurementscan.WhenpressingMfromapoweredOFFcondition,the

valueshownonthelowerrightisthelowestreadingrecordedduringthelastmeasurementscan

performed.

DifferentialReading(DIF=MAXminusMIN)

UsetheMbuttontosteptotheDIFparameter,thenpullandholdthetriggertostartscanning

surfacetemperatures.Thereadingonthelowerrightrepresentsthedifferencebetweenthe

MAXandtheMINreadingsrecordedduringthecurrentmeasurementscan.WhenpressingM

fromapoweredOFFcondition,thevalueshownonthelowerrightrepresentsthedifference

betweentheMAXandtheMINreadingsrecordedduringthelastmeasurementscanperformed.

AverageReading(AVG)

UsetheMbuttontosteptotheAVGparameter,thenpullandholdthetriggertostartscanning

surfacetemperatures.Thereadingonthelowerrightrepresentstheaverageofallreadings

recordedduringthecurrentmeasurementscan.WhenpressingMfromapoweredOFF

condition,thevalueshownonthelowerrightistheaverageofallreadingsrecordedduringthe

lastmeasurementscanperformed.

HighAlarmLimit(HAL)

UsetheMbuttontosteptotheHALparameter.UsethearrowbuttonstosettheHighAlarm

limit.Whilemeasuring,themeterbeepswhenthedisplayedreadingishigherthanthehigh

alarmsetting.Ifthebacklightison,thebacklightcolorwillturnredinahighalarmcondition.

LowAlarmLimit(LAL)

UsetheMbuttontosteptotheLALparameter.UsethearrowbuttonstosettheLowAlarm

limit.Whilemeasuring,themeterbeepswhenthedisplayedreadingislowerthanthelowalarm

setting.Ifthebacklightison,thebacklightcolorwillturnblueinalowalarmcondition.

DatalogMemory(LOG)

Themeterhastwentymemorylocations(1~20)inwhichtostoredtemperaturereadings.

1. FromapoweredONorOFFcondition,shortpresstheMbuttontosteptotheLOGmode

(theLOGdisplayiconismuchsmallerthantheothermodeicons)

2. Usethearrowstoselectamemorylocationinwhichtostoreareading

3. Pullandholdthetriggertoscansurfacetemperatures

4. Pressthebuttonatanytimetostorethereadingintheselectedmemorylocation.

Notethatyoucanpressthebuttonafterthetriggerisreleasedinordertostorethe

heldreadingintotheselectedmemorylocation

5. Usethearrowbuttonstostepthroughandviewthereadingsstoredineachlocation.

Dashesindicatethatamemorylocationisempty

6. Areadingwillremaininamemorylocationuntiltheuseroverwritesthatmemorylocation

7IR270‐en‐GB_V1.012/17

EmissivityAdjust(EMS)

UsetheMbuttontosteptotheEMSparameter.Usethearrowbuttonstosetthedesired

emissivityvalue(shownontheupperright).Theemissivitycanbeadjustedbetween0.10~1.00.

RefertotheEmissivityConsiderationssectionformoreinformation.

EmissivityConsiderations

Emissivityrepresentsthereflectivityofamaterial.Forthismeter,theemissivitycanbeadjusted

from0.10~1.00(seeEmissivityAdjustsectionabove).Mostorganicmaterialsandpaintedor

oxidizedsurfaceshaveanemissivityofapproximately0.95.Ifpossible,maskingtapeorflatblack

paintshouldbeappliedtocoverthemeasuredsurface.

Waitaperiodoftimetoallowthetapeorpainttoreachthermalequilibriumwiththesurfaceof

thecoveredobject.Measurethetemperatureofthesurfacecoveredwithtapeorpaintonly.

EmissivityFactorsforCommonMaterials

MaterialundertestEmissivityMaterialundertestEmissivity

Asphalt0.90to0.98Cloth(black)0.98

Concrete0.94Skin(human)0.98

Cement0.96Leather0.75to0.80

Sand0.90Charcoal(powder)0.96

Soil0.92to0.96Lacquer0.80to0.95

Water0.92to0.96Lacquer(matt)0.97

Ice0.96to0.98Rubber(black)0.94

Snow0.83Plastic0.85to0.95

Glass0.90to0.95Timber0.90

Ceramic0.90to0.94Paper0.70to0.94

Marble0.94ChromiumOxides0.81

Plaster0.80to0.90CopperOxides0.78

Mortar0.89to0.91IronOxides0.78to0.82

Brick0.93to0.96Textiles0.90



8IR270‐en‐GB_V1.012/17

Maintenance

Cleaning

Usecompressedairtocleardustandotherparticlesfromthemeterlenses,andthencarefully

cleanwithamoistened(cleanwater)cottonswab.

Tocleanthemeterhousing,wipewithadamp,softcloth.Donotusesolventsorabrasives.Do

notimmersetheIR270inwaterorinotherliquids.

Troubleshooting

SymptomProblemAction

‘HI’displayiconTargettemperatureover‐rangeSelectatargetwithinrange

BatteryiconflashesLowbatterypowerReplacebattery

Out‐of‐focusor‘cloudy’

displayscreen

LowbatterypowerReplacebattery

Laserpointerdoesnot

appearwhenenabled

DefectivelaserReturnthemeterforservice

ReplacingBatteries

Whenthebatteryiconflashes,orwhenthemeterdoesnotswitchON,replacethebattery.

Thebatterycompartmentislocatedinthemeterhandle.Thebatterycompartmentcoveris

locatedjustbelowthetrigger.Prythecompartmentcoverloose(fromthetopofthe

compartment)toopenthecompartment.

Replacethe9Vbatteryfollowingcorrectpolarityandthenclosethebatterycompartment

beforeusingthemeter.



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.



9IR270‐en‐GB_V1.012/17

Specifications

InfraredThermometerSpecifications

Range/ResolutionAutorange‐20~650oC(‐4~1202oF)/Resolution0.1°

Accuracy‐20~‐2oC(‐4~28oF):±4°C(8°F)

‐2~94oC(28~200oF):±2.5°C(4.5°F)

94~204oC(200~400oF):±(1.0%rdg+1°C/2°F)

204~426oC(400~800oF):±(1.5%rdg+1°C/2°F)

426~650oC(800~1202oF):±(3%rdg+1°C/2°F)

Note:Accuracyisspecifiedforthefollowingambienttemperaturerange:23~25°C

(73~77°F),<80%RH

Emissivity0.10~1.00adjustable

FieldofView12:1(approx.)DistancetoSpotratio

LaserpowerClass2<1mW,650nm±10nm

IRSpectralresponse8~14µm

Repeatability±0.5%rdgor±1°C(1.8°F);whicheverisgreater

GeneralSpecifications

Display BacklitLCDwithmultifunctionindicators

Responsetime150ms

Out‐of‐rangeindicator‘HI’forover‐range

Operatingtemperature 0°C~50°C(32°F~122°F)

Operatingrelativehumidity10~90%RH

Storagetemperature‐10°C~60°C(14°F~140°F)

Storagerelativehumidity80%RHmaximum

PowersupplyOne9Vbattery

AutomaticpowerOFFAfterapprox.7secondsoftriggerrelease

Weight 150g(5.3oz.)

Dimensions180x107x40mm(7.1x4.2x1.6”)

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

www.extech.com

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