9
3 Mounting
VEGAPULS SR 68 • Modbus and Levelmaster protocol
47164-EN-140129
3.2 Mounting preparations - Horn antenna
The instrument is also available in versions with an antenna whose
diameter is larger than the process fitting (thread, flange). In such
cases the antenna must be disconnected from the process fitting
before mounting. Proceed as follows:
1. Loosen the hexagon socket screws (3) on the antenna socket
with an Allen wrench (size 3)
2. Remove the antenna (4)
Note:
The plastic cone may not be pulled out of the antenna socket.
3. Insert the antenna from below into the vessel socket and secure it
against falling off
4. Retighten the antenna with hexagon screws to the antenna
socket; torque max. 2.5 Nm (1.8 lbf ft)
Note:
The radar sensor with rinsing air connection or antenna extension
is provided with a notch on the antenna socket. This notch must be
aligned with the marking on the process fitting (the marking specifies
the position of the polarisation of the radar signal).
3
4
1
2
Fig. 3: Dismounting of the horn antenna
1 Marking for the polarisation
2 Marking at the antenna socket
3 Hexagon screws on the antenna socket
4 Antenna
3.3 Mounting instructions
1. Distance from the vessel wall > 200 mm, the antenna should
protrude > 10 mm into the vessel
Mounting
