VOLTCRAFT IR 650-16D Bedienungsanleitung Seite 37

Measurement range
<0 °C
≥0 °C
The emission levels of different surfaces
Surface
Asphalt
Concrete
Chromium oxide
Ice
Ferric oxide
Earth
Hard plaster
Glass
Rubber (black)
Ceramic
Carbon (powder)
Copper oxide
Varnish
The emission ratios in the above table are approximate values. Parameters such as
the shape and characteristics of the material can affect the emissivity of an object.
Accuracy
± (2 °C + 0.2 °C per
degree)
±1.5 °C or ±1.5 %
(whichever is greater)
Emission level
0.90 – 0.98
0.94
0.81
0.96 – 0.98
0.78 – 0.82
0.92 – 0.96
0.80 – 0.90
0.90 – 0.95
0.94
0.90 – 0.94
0.96
0.78
0.80 – 0.95
Reproducibility
±0.8 % or ±1 °C (whichever
is greater)
Surface
Varnish (matt)
Marble
Human skin
Mortar
Paper
Plastic
Sand
Foam
Fabric (black)
Textiles
Water
Cement
Brick
Emission level
0.97
0.94
0.98
0.89 – 0.91
0.70 – 0.94
0.85 – 0.95
0.90
0.75 – 0.80
0.98
0.90
0.92 – 0.96
0.96
0.93 – 0.96
37