Emissivity Adjustment - Fluke TiS10 User Manual

TiS10, TiS20, TiS40, TiS45, TiS50, TiS55, TiS60, TiS65
Users Manual

Emissivity Adjustment

The correct emissivity values are important for the Imager
to make the most accurate temperature measurement
calculations. Emissivity of a surface can have a large
effect on the apparent temperatures that the Imager
observes. Understanding the emissivity of the surface
being inspected can, but not always, allow you to obtain
more accurate temperature measurements.
Surfaces with an emissivity of <0.60 make reliable
and consistent determination of actual
temperatures problematic. The lower the
emissivity, the more potential error is associated
with the Imager's temperature measurement
calculations. This is also true even when
adjustments to the emissivity and reflected
background adjustments are performed properly.
18
Note
Emissivity is set directly as a value, or from a list of
emissivity values for some common materials.
If the Display is set to Display All, you see the
information about current emissivity as ε = x.xx.
Adjust by Number
To set the emissivity value:
1. Go to Measurement > Emissivity > Adjust Number.
2. Push W/X to change the value.
A custom emissivity value is indicated when any value not
in the standard emissivity table is selected.
Select by Table
To select from a list of common materials:
1. Go to Measurement > Emissivity > Select Table.
2. Push W/X to highlight the material.
3. Push  to select the material.
If you set a value that is <0.60,  shows on the Imager
display with this caution:
Caution:

Emissivity <0.6
(see Manual)
Push  to clear the message.
Note