Extech Instruments IRT25 User Manual

EXTECHINSTRUMENTS
7IRT25‐en‐GB_V1.02/17
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IRT25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Batteries
Blankdisplayscreen Lowbatterypower Checkand/orreplacebatteries
NoLaserpointer
Lowbatteryorenvironmental
temperaturehigherthan40°C(104°F)
Replacethebatteries ormovethe
IRT25toanareawithalower
ambienttemperature

Extech Instruments IRT25 Specifications

General

Brand	Extech Instruments
Model	IRT25
Category	Thermometer
Language	English