Siemens SITRANS LG260, Руководство по эксплуатации, Страница: 15 / 96

15 PBD-51041059 SITRANS LG260 - Operating Instructions
44284-EN-171021
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".
h
d
d h
DN25 ... DN150
> DN150 ... DN200
≤ 150 mm ( 5.91")
≤ 100 mm ( 3.94")
Fig. 6: Mounting socket
When welding the socket, make sure that the socket is flush with the
vessel top.
1 2
Fig. 7: Socket must be installed flush
1 Unfavourable mounting
2 Socket flush - optimum mounting
Before beginning the welding work, remove the electronics module
from the sensor. By doing this, you avoid damage to the electronics
through inductive coupling.
Do not mount the instruments in or above the filling stream. Make sure
that you detect the product surface, not the inflowing product.
Mounting socket
Welding work
Inflowing medium