Fluke 66 [18/28] 66 68 infrared thermometers

Fluke 66 [18/28] 66 68 infrared thermometers
63/66/68
Infrared Thermometers
14
The 66/68 thermometers allow you to adjust the unit’s emissivity for
the type of surface being measured. Refer to Table 2.
Table 2. Surface Emissivity
Measured
Surface
Emissivity
Measured
Surface
Emissivity
METALS Iron
Aluminum
Oxidized 0.5-0.9
Oxidized 0.2-0.4 Rusted 0.5-0.7
Alloy A3003 Iron, Cast
Oxidized 0.3 Oxidized 0.6-0.95
Roughened 0.1-0.3 Unoxidized 0.2
Brass Molten 0.2-0.3
Burnished 0.3 Iron, Wrought
Oxidized 0.5 Dull 0.9
Copper
Lead
Oxidized 0.4-0.8
Rough 0.4
Electrical
Terminal Blocks 0.6
Oxidized 0.2-0.6
Haynes Molybdenum
Alloy 0.3-0.8 Oxidized 0.2-0.6
Inconel Nickel
Oxidized 0.7-0.95 Oxidized 0.2-0.5
Sandblasted 0.3-0.6 Platinum
Electoropolished 0.15 Black 0.9

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