Extech Instruments IR255 Manual de usuario



USERGUIDE



MiniInfraRedThermometer

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



ModelIR255



EXTECHINSTRUMENTS

2IR255‐en‐EU_V1.49/14

Introduction

CongratulationsonyourpurchaseoftheIR255IRThermometer.Thisthermometermakesnon‐

contact(infrared)temperaturemeasurementsatthetouchofabutton.Thebuilt‐inlaserpointer

increasestargetaccuracywhilethebacklitLCDandhandypush‐buttonscombineforconvenient,

ergonomicoperation.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,andCustomerSupport.

Features

Measuresnon‐contactsurfacetemperatureupto400°C(752°F)

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

Single‐pointlasertargeting

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

DisplayBacklight

Maximum‐Minimumtemperaturefunction

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

Dynamicbatterystatusindication

Adjustableemissivity

AudibleandvisiblealarmindicationforHighandLowTemperatureAlarm

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Guide

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



EXTECHINSTRUMENTS

3IR255‐en‐EU_V1.49/14

Description



MeterDescription

1. LCDDisplay

2. SETButton

3. MAX‐MIN/DownArrowButton

4. Laserpointerlens

5. IRThermometerlens

6. Backlight‐LaserPointer/UpArrowButton

7. MeasurementScanTrigger

8. BatteryCompartment

DisplayDescription

Emissivityvalueindication

Laserpointeractiveicon



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

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

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

Maximum/Minimumtemperatureicons

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

DisplayBacklighticon

Temperatureunits(°F/°C)

TemperatureAlarmiconsandaudiblealarmdisableicon

EXTECHINSTRUMENTS

4IR255‐en‐EU_V1.49/14

Operation

MeterPower

Themeterispoweredbyone9Vbattery.Withafreshbatteryinstalled,themeterswitchesON

whenthetriggerispulled.Thebatteryislocatedinthemeterhandle;pullthebattery

compartmentlidawayfromthebodyofthemetertoopen.RefertotheMaintenancesection

formoreBatteryInstallationinstructions.Thebatteryiconprovidesbatterystatusindication.

Replacethe9Vbatteryassoonasthebatterystatusiconflashes.

SurfaceTemperatureMeasurements

1. HoldthemeterbyitsHandleGripandpointittowardthesurfacetobemeasured.Readthe

FieldofViewsectionbelowfordistancetotarget(spot)ratioinformation.

2. PullandholdtheTriggertoturnthemeteronandbegintestinginScanmode.Thedisplay

willlightifthe9Vbatteryisgood.Replacethebatteryifthedisplaydoesnotlight.

3. WhilecontinuingtopulltheTrigger:

a. PushthebuttontoswitchthelaserpointerON.WhenthelaserisON,thelaser

icon willappearontheLCD.Aimtheredlaserbeamapproximatelyahalfinchbelow

thepointoftest(pressingtheLaserbuttonagainturnsthelaseroff).

b. Selectthetemperatureunits(oC/oF)intheSettingsMode(seelatersection).

c. PushthebuttontoswitchONtheLCDbacklightingfunction.

4. ReleasetheTrigger;thereadingwillholdforapproximately9seconds,afterwhichthemeter

willautomaticallyshutoff.

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

OFF.Forexample,ifthelaserisset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.

Over‐rangeIndicators(OLand‐OL)

Ifthetemperaturemeasurementexceeds400°C(752°F),thethermometerwilldisplayOLin

placeofatemperaturereading.Ifthetemperaturemeasurementisbelow‐20°C(‐4°F),the

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

MAX‐MINMode

PresstheMAX‐MINbuttontoviewthemaximumtemperaturereading(MAX),pressagainto

viewthelowestreading(MIN).PressagaintoswitchtheMAX‐MINmodeoff.

DisplayBacklight

Pressthebacklightbutton toswitchthebacklightON.Thebacklightwillswitch

OFFautomaticallyafterseveralsecondstoconservebatterypower.



EXTECHINSTRUMENTS

5IR255‐en‐EU_V1.49/14

SettingMode

PresstheSETbuttontoaccesstheSettingMode.Usetheupanddownbuttonstonavigatethe

SettingModemenuandtomakechanges.Theavailableparametersarelistedbelow:

Emissivitysetting

°C/°Ftemperatureunitsselection

TemperatureAlarmAudibleBeeperEnable/Disable

HighTemperatureAlarmLimitsetting

LowTemperatureAlarmLimitsetting

Thecorrespondingparametericonwillflashwhenselected.ToexittheSettingMode,press

andholdtheSETbuttonfortwoseconds.

EmissivitySetting

Theiconwillflashwhenselected.Usetheupanddownbuttonstoincreaseordecreasethe

emissivity(in0.01steps).Theemissivityrangeis0.10to1.00.Holddowntheupordown

buttontorapidlyincreaseordecreasetheemissivityvalue.PresstheSETbuttontoconfirm

andtosteptothenextoption.

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

Usetheupanddownbuttonstoselect°Cor°F.PresstheSETbuttontoconfirmandtostepto

thenextoption.

Enable/DisableAudibleTemperatureAlarm

Thisparameterisusedtoenable/disabletheaudibletemperaturealarm.The iconwillflash

inthismode.

Usetheupanddownbuttonstotogglethesetting.Whentheaudiblealarmisdisabled,the

displaywillshow‘HIGHLOW’.Whentheaudiblealarmisenabled,thedisplaywillshow

.Whentheaudiblealarmisenabled,thebeeperisallowedtosoundwhenever

themeasuredtemperaturegoesbeyondthehighorlowtemperaturelimitvalues.Pressthe

SETbuttontoconfirmandtosteptothenextoption.

HIGHTemperatureAlarmLimitSetting

UsetheupanddownbuttonstoincreaseordecreasetheHighAlarmTemperatureLimit(in

0.1steps).HoldingdowntheupordownbuttonwillrapidlyincreaseordecreasetheHIGH

limitvalue.AbeepwillsoundiftheHIGHtemperaturevaluereachestheLOWtemperature

valuewhileprogramming.PresstheSETbuttontoconfirmandtosteptothenextoption.

LOWTemperatureAlarmLimitSetting

UsetheupandownbuttonstoincreaseordecreasetheLowAlarmTemperatureLimit(in0.1

steps).HoldingdowntheupordownbuttonwillrapidlyincreaseordecreasetheLOWlimit

value.AbeepwillsoundiftheLOWtemperaturevaluereachestheHIGHtemperaturevalue

whileprogramming.PresstheSETbuttontoconfirmandtosteptothenextoption.

EXTECHINSTRUMENTS

6IR255‐en‐EU_V1.49/14

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.



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600mm

fromthetarget(spot),thediameterofthetargetmustbeatleast50mm.Otherdistancesare

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

Notethatmeasurementsshouldnormallybemadecloserthan1200mm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.



Emissivity

Emissivityrepresentstheenergy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.

EXTECHINSTRUMENTS

7IR255‐en‐EU_V1.49/14

MeasurementNotes

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

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IR255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

NoLaserpointerLowbatteryorenvironmental

temperaturehigherthan40°C(104°F)

Replacethebatteryormovethe

IR255toanareawithalower

ambienttemperature

EXTECHINSTRUMENTS

8IR255‐en‐EU_V1.49/14

ReplacingBatteries

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

Thebatterycompartmentislocatedinthehandlegrip.Thebatterycompartmentlidislocated

justbelowthetrigger.Prythecompartmentlidofftoreachthecompartment.

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

Batterysafetynotes:

oRemovethebatteryifthedeviceistobestoredforlongerthan60days

oNeverdisposeofbatteriesinafire.Batteriesmayexplodeorleak

oNevermixbatterytypes.Alwaysinstallnewbatteriesofthesametype



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.



EXTECHINSTRUMENTS

9IR255‐en‐EU_V1.49/14

Specifications

InfraredThermometerSpecifications

Range/Resolution‐20to400oC(‐4to752oF)

Accuracy±2°C(3.6°F)or2%ofreading(whicheverisgreater)

Note:Accuracyisspecifiedforthefollowingambient

temperaturerange:21to25°C(70to77°F)

EmissivityAdjustablefrom0.10to1.00

FieldofViewD/S=Approx.12:1ratio(D=distance,S=spot)

LaserpowerLessthan1mW

Spectralresponse630to670nm(wavelength)

GeneralSpecifications

Display 1999count,backlitLCDdisplaywithfunctionindicators

Displayrate250msapprox.

OperatingTemperature 0°Cto40°C(32°Fto104°F)

OperatingHumidityMax.75%RH

PowerSupply9Vbattery

AutomaticPowerOffMetershutsoffautomaticallyafter9seconds

Weight 140g(4.0oz.)

Dimensions165x85x40mm(6.5x3.3x1.6”)



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

www.extech.com

Tabla de contenidos

Otros manuales de Termómetro de Extech Instruments

Extech Instruments

Extech Instruments HD550 Manual de usuario

Extech Instruments

Extech Instruments 42570 Manual de usuario

Extech Instruments

Extech Instruments IR200 Manual de usuario

Extech Instruments

Extech Instruments IR201A Manual de usuario

Extech Instruments

Extech Instruments 42545 Manual de usuario

Extech Instruments

Extech Instruments EasyView EA11A Manual de usuario

Extech Instruments

Extech Instruments 433201 Manual de usuario

Extech Instruments

Extech Instruments Extech 470 Manual de usuario

Extech Instruments

Extech Instruments 42510A Manual de usuario

Extech Instruments

Extech Instruments RH30 Manual de usuario

Extech Instruments

Extech Instruments 42515 Manual de usuario

Extech Instruments

Extech Instruments EasyView EA20 Manual de usuario

Extech Instruments

Extech Instruments HD200 Manual de usuario

Extech Instruments

Extech Instruments EzSmart RHT3 Manual de usuario

Extech Instruments

Extech Instruments 421508 Manual de usuario

Extech Instruments

Extech Instruments RH490 Manual de usuario

Extech Instruments

Extech Instruments TM20 Manual de usuario

Extech Instruments

Extech Instruments 42509 Manual de usuario

Extech Instruments

Extech Instruments RH250W Manual de usuario

Extech Instruments

Extech Instruments 42580 Manual de usuario

Extech Instruments

Extech Instruments IR250 Manual de usuario

Extech Instruments

Extech Instruments IR320 Manual de usuario

Extech Instruments

Extech Instruments 42311 Manual de usuario

Extech Instruments

Extech Instruments IR267 Manual de usuario

Manuales populares de Termómetro de otras marcas

Delton

Delton 981A Manual de usuario

Baker

Baker MM2P Manual de usuario

Tarmo

Tarmo 320281 Manual de usuario

Citizen

Citizen CTD 504 Manual de usuario

TFA

TFA 14.1500 Manual de usuario

Vive

Vive DMD1010 Manual de usuario

Gotemp

Gotemp THB4002 Manual de usuario

GREISINGER

GREISINGER G 1202 Manual de usuario

Amprobe

Amprobe TMD-53W Manual de usuario

Trotec

Trotec BP10 Manual de usuario

Radiance instruments

Radiance instruments RT616 Series Manual de usuario

Eurolec

Eurolec IR151 Manual de usuario

Scaneo

Scaneo TS42B Manual de usuario

Sper scientific

Sper scientific 800043 Manual de usuario

Microlife

Microlife NC 200 Manual de instrucciones

Motorola

Motorola MBP69SN Guía de configuración

The MeatStick

The MeatStick The MeatStick Manual de usuario

Hama

Hama TH35-A Manual de usuario