NivoRadar
®
Continuous level measurement
Series NR 4000
Technical information / Instruction manual
Mounting
page 17
Mounting instructions
Radar sensors for level measurement emit electromagnetic waves.
The polarization is the direction of the electrical component of these
waves.
The position of the polarisation is in the middle of the type label on
the instrument.
1
Fig. 9: Position of the polarisation
1 Middle of the type label
Note:
When the device is rotated, the direction of polarization changes
and hence the influence of the false echo on the measured value.
Please keep this in mind when mounting or making changes later.
When mounting the device, keep a distance of at least 200 mm
(7.874 in) from the vessel wall. If the device is installed in the center
of dished or round vessel tops, multiple echoes can arise. However,
these can be suppressed by an appropriate adjustment (see chapter
" Setup").
If you cannot maintain this distance, you should carry out a false
signal suppression during setup. This applies particularly if buildup
on the vessel wall is expected. In such cases, we recommend
repeating the false signal suppression at a later date with existing
buildup.
> 200 mm
(7.87")
Fig. 10: Mounting of the radar sensor on round vessel tops
In vessels with conical bottom it can be advantageous to mount the
device in the centre of the vessel, as measurement is then possible
down to the bottom.
Polarisation
Installation position
