Calibration Function (Fcc); Stadiametric Rangefinder - Liemke CHALLENGER-15 Manual De Instrucciones

> Long press the picture/video button again to stop recording
and save the video.
The display indicates that the video has been saved.
The remaining space in the internal memory is displayed in the info
bar.

14. CALIBRATION FUNCTION (FCC)

During use, the image gradually deteriorates due to the changing
background temperature of the sensor. This must be compensated
for by periodically calibrating the sensor. For calibration, an inter-
nal shutter is actuated, which makes a faint clicking sound. The
image briefly freezes while the shutter is closed.
• In FCC Auto mode, calibration is performed automatically at
intervals set by the unit.
• In FCC Manual mode, no automatic calibration is performed.
The manual mode allows the user to determine the time when
the image briefly freezes.
> If you notice a deterioration in picture quality during use, start
manual calibration by pressing and holding the zoom button.
• In FCC External mode, no automatic calibration is performed
either. Calibration takes place without the internal shutter and is
therefore completely silent. The lens cap must be closed during
calibration (this replaces the internal shutter). If the lens cap is
inadvertently not closed when performing external calibration,
the displayed image is overlapped by a still image of the scene
displayed during calibration. This can be corrected by properly
calibrating again with the lens cap closed.

15. STADIAMETRIC RANGEFINDER

For stadiametric distance measurement, you must first set the
target size (height) of the target to which you want to measure the
distance. To do this, proceed as follows:
> Select the menu item Stadiametric Rangefinder in the menu
and confirm it with the menu button.
> Press the zoom button to enter the Parameters submenu.
Here you can choose between four different target sizes "wolf",
"bear", "deer" and "individual" using the picture/video button or the
zoom button.
> Confirm your selection with the menu button.
In the sub-item "individual" you can define a custom target size in
the range of 0.1 to 9.9 m height using the picture/video button or
the zoom button.
> Confirm the set value with the menu button.
To measure the distance, proceed as follows:
> Select the menu item Stadiametric Rangefinder in the menu
and confirm it with the menu button.
A long horizontal line with a short vertical line pointing upwards
appears in the display image.
> Place the intersection of the two lines at the top edge of the
target to be measured and press the menu button (step 1).