Ametek Land Cyclops L Series

Portable Thermometers
Cyclops L
EMISSIVITY
11
11.1 Emissivity values for Cyclops 100L and Cyclops 160L models
Inordertoobtainaccuratetemperaturemeasurements,theemissivityvalue
ofthetargetsurfacemustbeknown.ThissectionoftheUserGuidecontains
typicalemissivityvaluesofthemostcommonlymeasuredmaterialsforeach
thermometervariant.
Wherenoemissivityvalueisquoted,thismeansthatthethermometermaybe
unsuitableforthemeasurementapplication,thetemperatureofthetargetis
outsidethethermometer’smeasurementspan,orthattheemissivityvaluecannot
beaccuratelyspeciedandshouldbedeterminedin-situ(SeeSection11.2).If
youhaveaqueryregardingtheemissivityofthetargetinyourmeasurement
application,contactAMETEKLandforassistance.
Alloys
Material Cyclops 100L Cyclops 160L
Brass 0.20 0.18
Oxidised 0.70 0.70
Chromel&Alumel 0.30 0.30
Oxidised 0.80 0.80
Constantin&Manganin 0.25 0.22
Oxidised 0.65 0.60
Inconel 0.30 0.30
Oxidised 0.85 0.85
Monel 0.25 0.22
Oxidised 0.70 0.70
Nichrome 0.30 0.28
Oxidised 0.85 0.85
User Guide11 - 0