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561 HVACPro
Users Manual
8
Table 2. Surface Emissivity
Measured
Surface
Switch Setting
Measured
Surface
Switch Setting
Aluminum Iron, Cast
Oxidized Low Oxidized High, Medium
Alloy A3003 Unoxidized Low
Oxidized Low Molten Low
Roughened Low Iron, Wrought
Brass Dull High
Burnished Low Lead
Oxidized Low Rough Low
Copper Oxidized Low, Medium
Oxidized Medium Molybdenum
Electrical
Terminal Blocks
Medium Oxidized Low, Medium
Haynes Nickel
Alloy Medium Oxidized Low
Inconel Platinum
Oxidized High, Medium Black High
Sandblasted Medium Steel
Electoropolished Low Cold-Rolled High
Iron Ground Sheet Medium
Oxidized High, Medium Polished Sheet Low
Rusted Medium Zinc
Oxidized Low
Switching Between
°
C and
°
F
Open the battery compartment and locate the switch positioned between the left side of the battery near the
Thermometer wall. To toggle between °C and °F, use a small screwdriver or paper clip to move the switch
to the desired position. See Figure 7.