Endress+Hauser PROFI BUS Proline Promag 53 PROFIBUS DP Operating Manual page 43

Proline Promag 53 PROFIBUS DP/PA
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Endress+Hauser
Welding the transmitter 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. → Page 133
2. Loosen the screws on the process connection flange and remove the sensor including the seal
from the piping.
3. Weld the process connection into 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
When using pigs for cleaning, it is essential to take the inside diameters of the 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".
Installation
43