Burkert 8137 Manuel D'instructions page 13

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LEVEL TRANSMITTER 8137 • 4 ... 20 mA/HART
4
Retighten the antenna with hexagon screws to the antenna socket;
torque max. 10 Nm (7.5 lbf ft)
Note:
LEVEL TRANSMITTER 8137 with rinsing air connection or antenna
extension is provided with a notch on the antenna socket. This notch
must correspond to the marking on the hexagon of the process fitting
(the marking specifies the position of the polarisation level of the radar
signal).
Fig. 4: Dismounting horn antenna
Marking
1
2 Notch
3 Hexagon screws on the antenna socket
Antenna
4
4.3 Mounting preparations - Parabolic antenna
Information:
This information applies only to special versions!
LEVEL TRANSMITTER 8137 is also available in versions where the
antenna has a diameter larger than the process fitting (thread, flange).
With such versions the antenna must be disconnected from the
process fitting before mounting. Proceed as follows:
1 Clamp LEVEL TRANSMITTER 8137 with the flange, e.g. in a
bench vice
2 Hold the connection piece (3) with a wrench SW 22 on the
flattenings
3 Unscrew the locknut (2) with SW 36 against the antenna
4 Loosen compression nut (1) with a screwdriver SW 41 completely
in the direction of the antenna
4 Mounting
1
2
3
4
13