PANCONTROL PAN IR-T800+ Handbuch Seite 22

temperature of the adhesive tape. Contaminated optics (for e.g., by smoke,
dust or vapour) affect the accuracy of the measurement.
• If the distance between the measuring device and the test object increases,
the measured area becomes correspondingly larger. The relationship
between the distance and measured area can be seen in the graph Fig. 3.
• 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. The
minimum size of the object to be measured is displayed through the ring of
laser points around the Central measuring point.
emissivity
The emissivity describes the energy-emitting properties of materials. Most of
the organic materials have an emissivity of 0.85 ... 0.98 (0,95 preset in the
device). The emissivity can be adjusted from 0.10 to 1.0.
Substance
Concrete
Brick
Ice
Sand
Plaster
More values can be found under:
http://www.pancontrol.at/spezielle-produktinformationen
emissivity
0,94
0,93 to 0,96
0,96 to 0,98
0,90
0,80 to 0,90
Substance
Textiles
Human skin
Timber
Paper
Iron oxides
EN 7
emissivity
0,90
0,98
0,90
0,70 to 0,94
0,78 to 0,82