PANCONTROL PAN IR-T650 Manual De Instrucciones página 25

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Ensure that the area to be measured of the test object is larger than the
measuring point. The smaller the test object, the smaller must be the distance
to the measuring device. The test object should be at least twice as large as
the measuring point to get an accurate measurement.
Emissivity
The emissivity describes the energy-emitting properties of materials. Most of
the organic materials (90%) have an emissivity of 0.95 (preset in the device).
The emissivity can be adjusted from 0.10 to 1.0.
Substance
Asphalt
Concrete
Cement
Sand
Earth
Water
Ice
Snow
Glass
Ceramic
Marble
Plaster
Mortar
Brick
emissivity
0.90 to 0.98
0.94
0.96
0.90
0.92 to 0.96
0.92 to 0.96
0.96 to 0.98
0.83
0.90 to 0.95
0.90 to 0.94
0.94
0.80 to 0.90
0.89 to 0.91
0.93 to 0.96
Substance
Cloth (black)
Human skin
Leather
Charcoal (powder)
Lacquer
Laquer (matt)
Rubber (black)
Plastic
Timber
Paper
Chromium oxides
Copper oxides
Iron oxides
Textiles
EN 8
emissivity
0.98
0.98
0.75 to 0.80
0.96
0.80 to 0.95
0.97
0.94
0.85 to 0.95
0.90
0.70 to 0.94
0.81
0.78
0.78 to 0.82
0.90