Installation Proline Promag 55 PROFIBUS DP/PA
30 Endress+Hauser
Welding the sensor into the piping (weld nipples)
"
Caution!
Risk of destroying the measuring electronics. Make sure that the welding machine is not grounded
via the sensor or the transmitter.
1. Tack-weld the Promag H sensor into the pipe. A suitable welding jig can be ordered separately
from Endress+Hauser as an accessory ( ä 120).
2. Remove the threaded fasteners from the process-connection flange. Remove the sensor
complete with seal from the pipe.
3. Weld the process connection to the pipe.
4. Reinstall the sensor in the pipe. Make sure that everything is clean and that the seal is correctly
seated.
!
Note!
• If thin-walled foodstuffs pipes are not welded correctly, the heat could damage the installed seal.
It is therefore advisable to remove the sensor and the seal prior to welding.
• The pipe has to be spread approximately 8 mm to permit disassembly.
Cleaning with pigs
If pigs are used for cleaning, it is essential to take the inside diameters of measuring tube and process
connection into account.
All the dimensions and lengths of the sensor and transmitter are provided in the separate
documentation "Technical Information".
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