Operating Manual

KEILER PRO 2020 · Operating Manual 03 / 2021
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Malfunction Possible reason Correction
Thermal imager does
not power up.
Battery completely
discharged
Charge the battery
Does not operate from
external power source.
USB cable damaged Replace USB cable
External power source
discharged
Charge external power
source (if necessary).
Image is unclear, with
vertical lines and
uneven background
Calibration required Perform image
calibration according
to Section 21 „Sensor
Calibration Mode“ of
the Manual.
The image is too dark. Low brightness level set. Adjust display bright-
ness.
Colored lines appear
on display or the
image has disappe-
ared.
The device was expo-
sed to static electricity
during operation.
Aer exposure to static
electricity, the device
may either reboot
automatically or require
turning o and on
again.
Poor image quality /
reduced detection
distance
These problems may occur during observation in
dicult weather condi tions (high humidity, snow,
rain, fog, etc.).
Smartphone or tablet
cannot be connected
to the device
The device password
has been changed.
Delete the network and
reconnect using the
device password
The device is in an area
wit a large number of
Wi-Fi networks that may
cause interference.
To ensure stable Wi-Fi
operation, relocate the
device to an area with
fewer Wi-Fi networks, or
into an area with none.
Wi-Fi signal non existent
or interrupted
The device is outside
the area of Wi-Fi
coverage. There are
obstacles between
the device and the
receiver (e.g. concrete
walls.)
Relocate the device
into direct line of sight
of the Wi-Fi signal.
When used in lowtem-
perature conditions, the
image quality of the
surroundings is worse
than in positive tempe-
rature conditions.
In positive temperature conditions, objects being
observed (surroundings and background) heat
up dierently because of thermal conductivity,
thereby generating a high-temperature 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 tem-
perature because of which temperature contrast
is substantially reduced and the image quality
(detail) is poorer. This is a feature of thermal
imaging devices.
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