Recommended Values; Procedure - FLIR T4xx series User Manual
Hide thumbs
Also See for T4xx series:
- User manual (122 pages) ,
- User manual (72 pages) ,
- User manual (122 pages)
Table of Contents
Advertisement
16
Working with measurement tools
• Relative humidity, i.e., the relative humidity of the air between the camera and the ob-
ject of interest.
• Reflected temperature, which is used when compensating for the radiation from the
surroundings reflected by the object into the camera. This property of the object is
called reflectivity.
• Emissivity, i.e., how much radiation an object emits, compared with the radiation of a
theoretical reference object at the same temperature (called a "blackbody"). The op-
posite of emissivity is reflectivity. The emissivity determines how much of the radiation
originates from the object as opposed to being reflected by it.
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 > Set up camera > Emissivity mode > Select
from materials table.
16.5.3 Recommended values
If you are unsure about the values, the following are recommended:
Object distance
Atmospheric temperature
Relative humidity
Reflected temperature
Emissivity
16.5.4 Procedure
You can set the object parameters globally. You can also change the Emissivity, Re-
flected temperature, and Object distance parameters locally for a measurement tool.
Note
Of the object parameters, Emissivity and Reflected temperature are the two most important to set cor-
rectly in the camera.
16.5.4.1 Setting global parameters
Follow this procedure:
1. Push the joystick to display the menu system.
2. Use the joystick to go to
3. Push the joystick to display a submenu. Use the joystick to select one or more of the
global object parameters:
•
(External IR window compensation)
•
(Object distance)
•
(Atmospheric temperature)
•
(Relative humidity)
•
(Reflected temperature)
•
(Emissivity)
4. Push the joystick to display a dialog box.
5. Use the joystick to change the parameter.
6. Push the joystick. This closes the dialog box.
#T559879; r.15723/15723; en-US
1.0 m (3.3')
+20°C (+69°F)
50%
+20°C (+69°F)
0.95
(Measurement parameters).
41
Advertisement
Table of Contents
