User Manual

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

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.

