Liemke MERLIN-42 2020 Mode D'emploi page 25

Malfunction
The thermal imaging
camera cannot be
switched on. In the
starting process, the
Merlin-42 (2020) swit-
ches off again after
the start logo has
been displayed.
Can't be powered by
an external power
source.
The image is blurred,
with thin vertical lines
or shadows.
Low image quality/
reduced detection
range.
Issues in attached use
The point of impact
position cannot be
adjusted, the values
are not saved.
The image disappe-
ars after a shot is fired.
The point of impact is
not constant.
MERLIN-42 · Operating Manual 03 / 2021
Possible reason
Batteries are too weak.
USB cable is damaged.
Calibration needed.
These problems can occur under adverse we-
ather conditions (high humidity, snowfall, rain, fog,
etc. ). At temperatures above freezing point, the
observed objects (environment and background)
usually show a higher temperature difference. This
can be displayed with correspondingly higher
contrast by the thermal imaging device. At low
outside temperatures, the observed objects cool
down to approximately the same temperature,
so that the temperature contrast is considerably
reduced and the image quality suffers as a result.
This property is due to physics and does not repre-
sent a defect in the thermal imaging camera.
Instead of the image
shift function, pixel cor-
rection was activated
in the submenu.
Battery compartment
cover is not seated
correctly.
Minimum distance
of the mounting not
maintained.
-
The memory location
of the image shift
coordinates incorrectly
selected .
The parallax adjustment
on the daylight scope is
not set to infinity.
Minimum mounting
distance not observed
Correction
Insert new batteries.
Replace USB cable.
Calibrate the image (C
button).
see chapter 16
Check cover for tight
fit (seal should not be
visible from the outside).
Check and correct
distance (see chapter
16).
Check clamping
adapter and mounting
for tight fit.
see chapter 14
Set parallax adjustment
to infinity.
Check and correct
distance (see chapter
16).
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