Emissivity - RayTek Thermalert GP Series Operator's Manual

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2.4.3

Emissivity

Emissivity is a function of infrared sensors and how they measure tempera-
tures of different materials and surfaces.
Emissivities for H001 and H002 can be adjusted from 0.10 to 1.09 (adjustable
in 0.01 increments). Note that you cannot change emissivity for device type
H003 (fixed at 0.95) or for H004, H005 and H006, because emissivity adjust-
ments are not available through the GP monitor for these device types and
thermocouples. For H001 and H002, complete the following procedure to set
emissivity.
1. In temperature mode display, press the
to Figure 7 appears. (The "E" will be followed by numbers designating
O
N
L
Figure 7: Emissivity Display
the emissivity.)
2. Press the and buttons to change the number on the display to the
appropriate emissivity.
Note: Appendix C lists common emissivities for metals and non-metals.
3. Press the button until the temperature displays.
14 Thermalert GP Series Operator's Manual
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10 20
5 25
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button until a display similar
Thermalert GP
C
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