Installation
Promag 50
38
Hauser
a0002651
Fig. 23:
Installing ground rings with Promag H (DN 2 to 25, 1/12" to 1")
1 = Hexagonal-headed bolt (process connection)
2 = O-ring seals
3 = Ground ring or plastic disk (spacer)
4 = Sensor
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 sensor into the pipe. A suitable welding jig can be ordered separately as an
accessory (
2.
Loosen the screws on the process connection flange and remove the sensor, complete with the
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 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 Documentation"
1
3
2
4
2
