Siemens SITRANS LG250 Operating Instructions Manual page 15

Guided wave radar
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Mounting socket
PBD-51041053
strong electromagnetic fields (emitted interference according to
EN 61326: class A). In this case, use a probe with coaxial version.
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 dead zone. 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 LG250 - Operating Instructions
1
d
DN25 ... DN150
> DN150 ... DN200
d
2
h
≤ 150 mm (5.91")
≤ 100 mm (3.94")
15

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