FLIR DM166 USER MANUAL Document Identifier: DM166-en-US_AA
25
7.2 Using the Multimeter in the IGM
TM
mode
Use the Multimeter as described in
Section 6, Multimeter Operation
while the thermal
imager is in use. Multimeter readings, icons, and operational modes ‘Relative’ and
‘MIN-MAX-AVG’ appear superimposed on the thermal image.
7.3 Emissivity Factors for Common Materials
Material Emissivity
Material
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
