Extech Instruments IR267 Manual de usuario

USERMANUAL

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MiniInfraRed(IR)Thermometer

withTypeKInputandLaserPointer

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MODELIR267

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IR267‐en‐GB_v1.18/16

Introduction



ThankyouforselectingtheExtechModelIR267MiniIRThermometer.TheModelIR267IR

thermometermeasuresanddisplaysnon‐contact(infrared)temperaturereadingsandambient

airtemperature.Inaddition,theTypeKthermocoupleprovidescontacttemperature

measurements.Thebuilt‐inlaserpointerincreasestargetaccuracywhilethebacklitLCDand

handypush‐buttonscombineforconvenient,ergonomicoperation.Theadjustableemissivity

featureallowstheIRthermometertomeasurethetemperatureofvirtuallyanysurface.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ofthisUser

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

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Features

Measuresnon‐contactsurfacetemperatureupto1112°F(600°C)

Measuresambientairtemperatureto158°F(70°C)

Type‐Kthermocoupleinputofferscontacttemperaturemeasurements

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

Single‐pointlasertargeting

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

DisplayBacklight

MAX/MIN/AVG/DIFtemperaturerecordingfunction

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

Batterystatusindication

Adjustableemissivity

VisiblealarmindicationforHighandLowTemperatureAlarm

Autopoweroffapproximately10secondsaftertriggerrelease



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IR267‐en‐GB_v1.18/16

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connectanexternalprobetoliveelectricalcircuits

oDonotsubmergeinwater

oDonotleavethethermometeronornearobjectsofhightemperature

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Guide

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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

oIfthemeteristobestoredforalongperiodoftimethebatteryshouldberemovedto

preventdamagetotheunit

<1mW Output at 650nm

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IR267‐en‐GB_v1.18/16

Description

MeterDescription

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1. LCDDisplay

2. ControlButtons

3. Lanyard

4. Type‐KThermocoupleinputjack

5. Batterycompartment(9V)

6. MeasurementTrigger

7. IRThermometerlens

8. Ambienttemperaturesensor

9. Laserpointerlens

DisplayDescription

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Largedigitsatcenterforprimarymeasurementvalue

SmalldigitsatlowerrightforMAX‐MIN‐AVG‐DIFvalues

SmalldigitsatlowerleftforEmissivityvalue

Emissivityvalueindication

Laserpointeractive

SScanmode(activewhilethetriggerispulled;displayedtemperature

tracksthetemperatureofthescannedsurfaces)

HHoldmode(displayedtemperaturefreezeswithtriggerrelease)

MaxMinAvgDiffMaximum/Minimum/Average/Differentialtemperaturereadings

Batterycapacityindicator(flasheswhenbatteryvoltageiscritical)

KAOK/A/OTemperaturemeasurementtypes:

K:Thermocouple,A:Ambient,O:Object/Surface

Temperatureunits(°F/°C)

AlmHLHighandLowTemperatureAlarms

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Operation

MeterPower

Themeterispoweredbyone9Vbatterylocatedinthemeterhandle.RefertotheMaintenance

sectionforreplacementinstructions.Thedisplayedbatteryiconprovidesbatterystatus.Replace

thebatteryassoonasthebatterystatusiconflashes.

Non‐ContactIRSurfaceTemperatureMeasurements

TheIR267thermometerremotelymeasuresthesurfacetemperatureofanobject.Theemissivity

mustbeproperlysettoobtainoptimumaccuracy(seetheEmissivitysectionfordetails).

1. Holdthemeterbythehandlegripandpull(andhold)thetriggertopowerthemeter.Use

thearrowbuttontoselecttheO(object/surface)modeifnecessary.Scanthesurfacesunder

test;thesymbolS(scan)blinkswhilescanning.RefertotheFieldofViewsectionfor

distance‐to‐target(spot)ratioconsiderations.

2. Aimthelaserpointerapproximatelyahalfinchbelowaspecificpointofinterest.

3. ReleasetheTrigger;thesymbolHwillappearandthereading(largerdigitsatcenterof

display)willholdfor10seconds,afterwhichthemeterwillautomaticallyshutoff.

4. Notethatthesmallerdigits,lowerright,reflecttheMIN‐MAX‐AVGorDIFreadingasselected

intheSettingsmode.

5. ThemeterdefaultstothesettingsinusewhenthemeterwaslastswitchedOFF.

Ambient(Air)TemperatureMeasurements

TheIR267canmeasurethetemperatureofambientairusingtherecessedtemperaturesensor

locatedonthefrontofthemeternexttothelaserpointerlens.

1. PullandholdtheTriggertokeepthemeterpowered.

2. UsetheUPorDOWNbuttontoselecttheA(ambient)mode.

3. Holdthemeterbyitshandlegripintheambientair.

4. Whenfinished,releasetheTrigger;thesymbolHwillappearandtheambientair

temperaturereadingwillholdfor10seconds.

ContactThermocouple(Type‐K)TemperatureMeasurements

Toavoidelectricalshockorpersonalinjury,donotconnecttheexternalprobetolive

electricalcircuits.

1. PlugtheType‐Kthermocouplesensorintothesub‐miniaturejacksatthebottomofthe

instrument(oneplugspadeiswiderthantheother).

2. Pullthetriggertopowerthemeter.Holdthetriggertokeepthemeterpowered.

3. UsethearrowbuttonstoselecttheK(thermocouple)mode.

4. Holdthethermocoupleinairortouchthetipofthethermocoupletoanobject’ssurface.The

thermocoupletemperaturemeasurementwillbedisplayed.

5. Whenfinished,releasetheTrigger;thesymbolHwillappearandthethermocouple

temperaturereadingwillholdfor10seconds.

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Over‐rangeIndicators(OLand‐OL)

Ifthetemperaturemeasurementexceeds1112°F(600°C),thethermometerwilldisplayOLin

placeofatemperaturereading.Ifthetemperaturemeasurementisbelow‐58°F(‐50°C),the

thermometerwilldisplay‐OLinplaceofatemperaturereading.

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LocatingHotorColdSpots

Todetectahotorcoldspot,aimthethermometerataregionbeyondthetargetandthenscan

theentireregioninaslow,up/downmotion.Aimthelaserpointerapproximatelyahalfinch

belowthepointoftest.

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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24inches

fromthetarget(spot),thediameterofthetargetmustbeatleast2inches.Otherdistancesare

shownbelowinthefieldofviewdiagram.

Notethatmeasurementsshouldnormallybemade<2feetfromthetarget.Themetercan

measurefromfurtherdistancesbutthemeasurementmaybeaffectedbyexternalsourcesof

light.Inaddition,thespotsizemaybesolargethatitencompassessurfaceareasnotintended

tobemeasured.



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.Seetheaccompanyingdiagram.



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IR267‐en‐GB_v1.18/16

Emissivity

TheEmissivitysettingisshowninsmalldigitsatthelowerleftcornerofthedisplay.Toadjust

theEmissivitypleaserefertotheSettingsmodesection.

Emissivityrepresentsthereflectivityofamaterial.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

afterequilibriumhasbeenachieved.

AnotherwaytofindtheemissivityofasurfaceistousetheType‐Kthermocoupletotakea

contacttemperaturereading.Notethisreadingandthentakeanon‐contacttemperature

readingandadjusttheemissivityuntilthenon‐contactmeasurementmatchesthecontact

measurement.

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



HighandLowTemperatureAlarms

TheIR267hasalowalarmandahighalarmutility.Setthelowandhighalarmlimitsinthe

Settingsmode.SeetheSettingsmodesectionfordetails.Thelowand/orthehighalarmscan

alsobedisabledintheSettingsmode.WhentheloworhighalarmlimitsarereachedtheL(low

alarm)orH(highalarm)iconwillblinkandthealarmbuzzerwillsound(thebuzzercanbe

disabledintheSettingsmode.



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IR267‐en‐GB_v1.18/16

SettingsMode

PressandreleasethetriggerandthenpresstheM(Mode)buttontoaccesstheSettingsMode.

UsetheMbuttontostepthroughsettingslistedbelowandusetheSETbuttontomakechanges.

Displaymode:Maximumreading(MAX),Minimumreading(MIN),Averagereading(AVG),

Differentialreading(DIFF)

BacklightON/OFF(LitE)

Laserpointer(LAS)ON/OFFsetting

HighTemperatureAlarmLimitsetting(ALMH)

LowTemperatureAlarmLimitsetting(ALML)

Emissivity()setting

Temperatureunitselection(°C/°F)

BuzzerON/OFF(bU2)

ToexittheSettingsMode,pressthetriggertoreturntonormaloperatingmodeorsimplyallow

theautomaticpowerOFFfeaturetoswitchthemeterOFF.

DisplayMode:MAX‐MIN‐AVG‐DIFF

Pressthetriggerandrelease.UseMButtontostepthroughMAX‐MIN‐AVG‐DIFdisplaymode

icons.PressSETwhenthedesirediconisshown.Pullthetriggertoreturntothenormal

operatingmode.Thedisplay(smallerdigitslowerright)willreflecttheselectedmode.

Backlight–ON/OFF

Pressthetriggerandrelease.UsetheMbuttontosteptotheLitEdisplay.PresstheSETbutton

toselectoNoroFF.Pullthetriggertoreturntothenormaloperatingmode.

Laser–ON/OFF

Pullthetriggerandrelease. UsetheMbuttontosteptotheLASdisplay.UsetheSETbuttonto

selectoNoroFF.Pullthetriggertoreturntothenormaloperatingmode.WhenthelaserisON,

thelasericon willappearontheLCD.

HIGHTemperatureAlarmLimitSetting

Pullthetriggerandrelease. UsetheMbuttontosteptoAlmH.Usethearrowbuttonstosetthe

HighAlarmlimit.PresstheSETbuttontoturntheHighAlarmOFF.Pullthetriggertoreturnto

thenormaloperatingmode.Ifthehighalarmlimitisexceededwhentakingmeasurements,the

displayedALMHwillblinkandthealarmbuzzerwillsound(if‘bU2’issettoON).

LOWTemperatureAlarmLimitSetting

Pullthetriggerandrelease. UsetheMbuttontosteptoAlmL.Usethearrowbuttonstosetthe

LowAlarmlimit.PresstheSETbuttontoturntheLowAlarmOFF.Pullthetriggertoreturntothe

normaloperatingmode.Ifthelowalarmlimitisexceededwhentakingmeasurements,the

displayedALMLwillblinkandthealarmbuzzerwillsound(if‘bU2’issettoON)..

EmissivitySetting

Pullthetriggerandrelease. UsetheMbuttontosteptothe icon.Usethearrowbuttonsto

adjusttheemissivity(in0.01steps).Theemissivityrangeis0.05to1.00.Pullthetriggertoreturn

tothenormaloperatingmode.Formoreinformation,seetheEmissivitysection.

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IR267‐en‐GB_v1.18/16

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

Pullthetriggerandrelease. UsetheMbuttontostepto°C/°F.UsetheSETbuttontoselect°Cor

°F.Pullthetriggertoreturntothenormaloperatingmode.

SettingtheAlarmBuzzer‘bU2’ON/OFF

Pullthetriggerandrelease. UsetheMbuttontostepto‘bU2’.UsetheSETbuttontoselectON

orOFF.Pullthetriggertoreturntothenormaloperatingmode.WhensettoOFF,theAlarm

buzzerwillnotsoundinanalarmcondition.



MeasurementNotes

1. Theobjectundertestshouldbelargerthanthespot(target)sizecalculatedusingthefieldof

viewdiagram.

2. Ifthesurfaceoftheobjectundertestiscoveredwithfrost,oil,grime,etc.,clean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cannot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.Itcan,however,takeupto

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

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

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

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IR267‐en‐GB_v1.18/16

Maintenance

Cleaning

Tocleanthelenses,usecompressedairtocleardustandotherparticles,thencarefullyclean

withawetcottonswab.Thecottonswabshouldbemoistenedwithcleanwater.

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

notimmersetheIR267inwaterorotherliquid.

Troubleshooting

SymptomProblem Action

OLdisplayTargettemperatureexceedsrangeSelectatargetwithinrange

‐OLdisplayTargettemperatureunder‐rangeSelectatargetwithinrange

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

BlankdisplayscreenLowbatterypower Checkand/orreplacebattery

Incorrect/Nodisplayed

value

Wrongmeasurementfunctionselected PressUp/Downarrowtoselect

correctmeasurementfunction

NoLaserpointerLowbatteryEnsurethattheLaser(LAS)isset

toONintheSettingsmode

Replacethebattery

Display

freezes/undefined

reading

Lockeddisplay TurnthemeterOFFthenpull

triggeragainafter3seconds

BatteryReplacement

Whenthebatteryiconflashes,orwhenthemeterdoesn’tswitchON,replacethebattery:

Thebatterycompartmentislocatedinthehandgrip. 

Thebatterycompartmentlidislocatedjustbelowthetrigger.

Openthebatterydoorbypryingwithathumborfingeratone

oftheindentationsnearthetopofthehandgrip.

Thedoorishingedatthebottomofthehandgrip.

Thebatteryshouldbeinstalledwiththepositive+terminal(smallercontact)facingthe

metertoensurecorrectpolarity.



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.

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.



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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