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16 C1309M-A (9/08)
Perform Manual FFC
Occasionally, image quality may degrade. When this happens, perform a manual FFC. After manually performing this process, the camera restarts
the frequency clock and resets the baseline temperature.
To manually perform the FFC:
1. Click the Camera tab.
2. Click the Manual button in the Flat Field Correction pane.
3. Click the Do FCC button. A FFC is performed.
NOTES:
• In manual FFC mode, the camera does not automatically perform FFC based on specified values of temperature change or frame intervals.
The FFC will be performed when the Do FFC button is clicked.
• Even with manual FFC mode selected, large temperature changes will cause the camera to perform the FFC operation. This will typically
happen at temperatures near 0°C and 40°C.
• The camera settings cannot be saved when FFC is in manual mode; it must be set to Auto to save camera settings.
FFC Interval
Frequency controls how often the camera performs the FFC process, regardless of the temperature change in the field of view. After each FFC,
the camera restarts the frequency clock.
You can select from 0–30,000 frames. The default is 3,600 frames.
NOTE: For best results, keep the FFC Interval setting at the default value.
To program the interval:
1. Click the Camera tab.
2. In the FFC Interval box, type the frame interval at which you want to automatically perform FFC.
3. Click the Set button to set the changed setting.
4. Click Save Settings to save all changed settings on all tabs.
Temp Change
Temp Change sets the increment (in degrees) of change required to automatically trigger the FFC process when the temperature changes in the
field of view. After each FFC, the camera resets the baseline temperature and resumes temperature monitoring.
The temperature change is specified in degrees, with valid values in the range of 0°C to 100°C in 0.1° increments.
To program the temperature change:
1. Click the Camera tab.
2. In the Temp Change box, type the temperature change at which you want to automatically perform FFC.
3. Click the Set button to set the changed setting.
4. Click Save Settings to save all changed settings on all tabs.
STATUS
The status pane displays the focal plane array (FPA) temperature. This is the internal temperature of the camera, which is not a configurable
setting.