Working with measurement tools
Note
There is an
Emissivity mode
setting, which you can use to enter the emissivity
by material instead of by value. Select
(
Settings
) >
Device settings
>
User inter-
face options
>
Emissivity mode
>
Select from materials table
.
Emissivity
is the most important measurement parameter to set correctly. If the
Emissivity
is set to a low value, the
Reflected temperature
also becomes important. The parameters
Object distance
,
Atmospheric temperature
, and
Relative humidity
are relevant for longer
distances. The
External IR window compensation
must be activated if a protective win-
dow or external lens is used.
13.5.3
Recommended values
If you are unsure about the values, the following are recommended:
Object distance
1.0 m (3.3 ft.)
Atmospheric temperature
20°C (69°F)
Relative humidity
50%
Reflected temperature
20°C (69°F)
Emissivity
0.95
13.5.4
Procedure
You can set the measurement parameters globally. You can also change the
Emissivity
,
Reflected temperature
, and
Object distance
parameters locally for a measurement tool.
Local parameters are normally only effective for a fixed setup, where each measurement
tool is set for a specific object of interest. For a general handheld application, the global
parameters are usually sufficient.
Note
Emissivity
and
Reflected temperature
are the two most important measurement
parameters to set correctly in the camera.
13.5.4.1
Setting global parameters
Follow this procedure:
1. Push the navigation pad to display the menu system.
2. Select
(
Measurement parameters
) and push the navigation pad. This displays a
submenu.
3. Use the navigation pad to select one or more of the global measurement parameters:
•
(
External IR window compensation
).
•
(
Object distance
).
•
(
Atmospheric temperature
).
•
(
Relative humidity
).
•
(
Reflected temperature
).
•
(
Emissivity
).
4. Push the navigation pad to display a dialog box.
5. Use the navigation pad to change the parameter.
6. Push the navigation pad to confirm and exit the menu mode.
13.5.4.2
Changing local parameters
You can change the local parameters for a measurement tool.
#T810253; r. AL/84068/84441; en-US
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