Min. range
The range minimum is the minimum distance at which the sensor will detect the water level.
This parameter is used to avoid spurious measurements and should be set depending on the
installation location. If there are any nearby surfaces that can reflect the radar signal the
range minimum should be set to a value higher than the distance to those reflecting surfaces.
The range minimum parameter should not be lower than 2 [m] to avoid interference with
the internal reflection in the radar antenna.
Min. signal
The signal minimum is the lower limit for the reflection signal power that will be considered
in water level measurements. This parameter is by default set to 25 [dB], and should only
be adjusted by an expert user.
Reflection diagram
The reflection diagram gives a snapshot of raw radar data in the frequency domain. The
reflection diagram provides a useful insight in the quality of the reflection signal that is
obtained by the radar.
After changing the sensor parameters for the radar, rebooting the system is required for
the changes to take effect. The reflection diagram of the sensor should be checked to e nsure
that the water level measurement is within the defined limits (More information can be
found in ’Step 4.2: Check the Reflection Diagrams’).
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