VEGA VEGAPULS 61 (≥ 2.0.0 - ≥ 4.0.0) Profibus PA - Manual (Page 16)

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4 Mounting
VEGAPULS 61 • Profibus PA
36501-EN-121011
Fig. 6: Adjustment of the angle of inclination
Fig. 7: Turning by fastening in the centre
4.4 Instructions for installation
For tight installation of the version with plastic horn antenna with com-
pression or adapter flange, the following conditions must be fulfilled:
1. Use suitable flat seal, e.g. of EPDM with Shore hardness 25 or 50
2. Make sure the number of flange screws corresponds to the num-
ber of flange holes
3. Tighten all screws with the torque stated in the technical data
The emitted radar impulses of the radar sensor are electromagnetic
waves. The polarisation plane is the direction of the electrical wave
component. 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 plane is marked on the process fitting
of the instrument.
1 2
Fig. 8: Position of the polarisation level
1 Marking with version with encapsulated antenna system
2 Marking with version with plastic horn antenna
When mounting the sensor, keep a distance of at least 200 mm
(7.874 in) to the vessel wall. If the sensor is installed in the center of
Tight installation of the
plastic horn antenna
Polarisation plane
Installation position