12
4 Mounting
VEGAPULS C 22 • SDI-12
58345-EN-200806
> 200 mm
(7.87")
Fig. 6: Mounting via a mounting bracket
4.3 Mounting instructions
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 mounting strap, the polarisation
can be used to reduce the effects of false echoes.
The position of the polarisation is in the middle of the type label on the
instrument.
1
Fig. 7: Position of the polarisation
1 Middle of the type label
Mount the device at a position that is at least 200 mm (7.874 in) away
from a wall or structural parts (see illustrations above).
If you cannot maintain this distance, you should carry out a false
signal suppression during setup. This applies particularly if buildup
on the wall or structural parts is to be expected. In such cases, we
recommend repeating the false signal suppression at a later date with
existing buildup.
The centre of the antenna lens is the beginning of the measuring
range and at the same time the reference plane for the min./max.
adjustment, see following diagram:
1
Fig. 8: Reference plane
1 Reference plane
Do not mount the instruments in or above the filling stream. Make sure
that you detect the medium surface, not the inflowing product.
Polarisation
Installation position
Reference plane
Inflowing medium