Vega VEGAPULS 63 Operating Instructions Manual page 17

Polarisation
Installation position
VEGAPULS 63 • Modbus and Levelmaster protocol
Note:
It is recommended, retightening the screws in regular intervals
depending on process pressure and temperature. Recommended
torque (see chapter "Technical data").
The emitted radar impulses of the radar sensor are electromagnetic
waves. The polarisation is the direction of the electrical wave compo-
nent. By turning the instrument in the connection flange or mounting
boss, the polarisation can be used to reduce the effects of false
echoes.
The position of the polarisation is marked on the process fitting of the
instrument.
Fig. 4: Position of the polarisation
1 Marking hole
When mounting the VEGAPULS 63, keep a distance of at least
200 mm (7.874 in) to the vessel wall. If the sensor is installed in the
center of dished or round vessel tops, multiple echoes can arise.
These can, however, 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. 5: Mounting of the radar sensor on round vessel tops
4 Mounting
1
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