Liemke KEILER–25 LRF Manual De Instrucciones página 73

Malfunction
Poor image
quality / reduced
detection
distance
Smartphone or
tablet cannot be
connected
to the device
Wi-Fi signal non
existent or
interrupted
When used in
lowtemperature
conditions, the
image quality of
the surroundings
is worse than in
positive tempera-
ture conditions.
KEILER – 25 LRF · Operating Manual 11 / 2020
Possible reason
These problems may occur during
observation in difficult weather condi-
tions(snow, rain, fog, etc. ).
The device pass-
word has been
changed.
The device is in an
area wit a large
number of Wi-Fi
networks that may
cause interfe-
rence.
The device is
outside the area
of Wi-Fi coverage.
There are obst-
acles between
the device and
the receiver (e.g.
concrete walls.)
In positive temperature conditions,
objects being observed (surroundings
and background) heat up differently
because of thermal conductivity,
thereby generating a high-tempera-
ture contrast. Accordingly, the image
quality produced by the device will be
higher. In low-temperature conditions,
objects being observed (background)
do, as a rule, cool down to roughly the
same temperature because of which
temperature contrast is substantially
reduced and the image quality
(detail) is poorer. This is a feature of
thermal imaging devices.
Correction
Delete the
network and re-
connect using the
device password
To ensure stable
Wi-Fi operation,
relocate thede-
vice to an area
with fewer Wi-Fi
networks, or into
an area with
none.
Relocate the
device into direct
line of sight of the
Wi-Fi signal.
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