Expert Series Thermal Imager
Menus
23
Note
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.
Emissivity is set directly as a value, or from a list of
emissivity values for some common materials.
Note
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
/
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
/
to highlight the material.
3. Push
to select the material.
Background (Reflected Background
Temperature Compensation)
Compensation for reflected background temperature is set
in the Background tab. Very hot objects or very cold
objects can affect the apparent temperature and
measurement accuracy of the target or object of interest,
especially when surface emissivity is low. Adjustment of
the reflected background temperature can make the
temperature measurement better in many situations. For
more information, see
Emissivity Adjustment
.
To adjust the background temperature:
1. Go
to
Measurement
>
Background
.
2. Push
/
to change the value.
3. Push
or
when done.
Note
If the Display is set to
Display All
, you see the
information about current reflected background
temperature as
BG = xx.x
.
Summary of Contents for TiX520
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Page 56: ...TiX520 TiX560 Users Manual 46 ...
