VEGA VEGAPULS WL 61 4 … 20 mA_HART - two-wire - Manual (Page 17)

17
4 Mounting
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-121011
Fig. 12: Rotation in the centre with ceiling mounting
Fig. 13: Adjustment of the angle of inclination in case of wall mounting
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 strap, the polarisation can be used to reduce the effects of
false echoes.
The position of the polarisation level is marked by marking bars on the
instrument.
Tight installation of the
plastic horn antenna
Polarisation plane