Siemens SITRANS LG240 Operating Instructions Manual page 15

Mounting socket
PBD-51041038
Fig. 5: Mounting in non-metallic vessel
1 Flange
2 Metal sheet
If possible, avoid sockets. Mount the sensor flush with the vessel top.
If this is not possible, use short sockets with small diameter.
Higher sockets or sockets with a bigger diameter can generally be
used. They can, however, increase the upper blocking distance (dead
band). Check if this is relevant for your measurement.
In such cases, always carry out a false signal suppression after
mounting. You can find further information under "Setup procedure".
Fig. 6: Mounting socket
When welding the socket, make sure that the socket is flush with the
vessel top.
SITRANS LG240 - Operating Instructions
1
d
DN25 ... DN150
> DN150 ... DN200
d
2
h
≤ 150 mm ( 5.91")
≤ 100 mm ( 3.94")
15