VEGA VEGAPULS SR 68 4 … 20 mA_HART - four-wire - Manual (Page 16)

16
4 Mounting
VEGAPULS SR 68 • 4 … 20 mA/HART - four-wire
38295-EN-130624
Note:
A damaged O-ring seal must be replaced: FKM (SHS FPM 70C3
GLT), FFKM (Kalrez 6375)
8. Remount the parabolic antenna (4)
9. Fasten compression nut (1) with a wrench (width across flats 41),
torque max. 50 Nm
10. Fasten counter nut (2) with a wrench (width across flats 36),
torque max. 40 Nm
Note:
On the version with rinsing air connection, make sure that the holes
in the antenna and in the process fitting coincide. This ensures a suf-
ficient air flow (the air is led through the holes to the feed system. A
rinsing of the whole parabolic antenna is not intended).
1
2
3
4
Fig. 6: Dismounting, parabolic antenna
1 Connection piece
2 Compression nut
3 Locknut
4 Parabolic antenna
4.4 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 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.
Polarisation