User Manual

IR267‐en‐US_v1.21/17

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.

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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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