MasterCraft MAXIMUM 057-4582-6 Mode D'emploi page 11

EMISSIVITY
• Emissivity describes the energy-emitting characteristics of materials.
• A built-in IR sensor head detects the material/surface-specific infrared rays emitted by every object.
The level of emissivity is determined by the material's emissivity value (0.01 to 0.99).
This device is preset to an emissivity value of 0.95, which is applicable to most organic materials as
well as plastics, ceramics, wood, rubber and stone. For details of those materials with a different
emissivity value please refer to the table.
UNKNOWN EMISSIVITY VALUE
Apply masking tape or black matt paint to the surface of the area whose temperature you wish to
measure.
Wait until the tape/paint has heated up. The temperature of the surface can then be measured with an
emissivity value of 0.95.
EMISSIVITY VALUE
See emissivity chart below for the proper settings for different materials.
0.93
Asbestos
Asphalt 0.95
Basalt 0.70
Coal
0.8 - 0.9
Non-oxidised
Graphite 0.7 - 0.8
Carborundum 0.90
0.95
Ceramics
0.93
Earthenware,
matt
Clay 0.95
Concrete,
0.93
plaster,
mortar
Masonry 0.93
0.93
Brick, red
0.95
Lime brick
Fabric 0.95
Glass 0.85 - 0.94
0.95
Gravel
NON-METALS
Gypsum 0.8 - 0.95
Ice
Clear 0.97
With heavy frost 0.98
Limestone 0.98
Paper
All colours 0.95 - 0.97
Wallpaper,
light-coloured 0.88 - 0.90
Plastic
Translucent 0.95
PE, P, PVC 0.94
Soil
0.9 - 0.98
Water
0.93
Wood
Untreated 0.8 - 0.95
Beech, planed 0.94
China
Brilliant white
0.7 - 0.75
With glaze 0.92
RECORDABLE THERMAL IMAGER 057-4582-6
Paint
Black, matt 0.96 - 0.98
Heat-resistant 0.92
White 0.85 - 0.95
Transformer paint
0.94
Rubber
Hard
0.94 - 0.95
Soft, grey 0.89
Cotton
0.77
Lime
0.3 - 0.4
Tar
0.79 - 0.84
Tar paper 0.91 - 0.93
Snow
0.80
Human skin
0.98
Quartz glass
0.93
Heat sink
Black, anodized 0.98
Marble
Black, dull finish
0.94
Greyish, polished 0.93
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