Wiring
Proline Promag 51
38
Hauser
When using the measuring device in a:
• Plastic pipe
• Pipe with insulating lining
This connection method also applies in situations where:
• Customary potential equalization cannot be ensured
• Excessively high equalizing currents can be expected
Potential equalization takes place by means of the additional
ground disks. Accessories ground discs
A0011895
Fig. 35:
Via the ground terminal of the
transmitter (ground cable: copper wire
at least 6 mm²/0.0093 in²).
When using the measuring device in a:
• Pipe with a cathodic protection unit
The device is installed potential-free in the pipe.
Only the two flanges of the pipe are connected with a ground
cable (copper wire, 6 mm²). Here, the ground cable is mounted
directly on the conductive flange coating with flange screws.
Note the following when installing:
• The applicable regulations regarding potential-free installation
must be observed.
• There should be
no
electrically conductive connection
between the pipe and the device.
• The mounting material must withstand the applicable
torques.
A0011896
Fig. 36:
Potential equalization and cathodic
protection (ground cable: copper wire
at least 6 mm²/0.0093 in²)
1
Power supply isolation transformer
2
Electrically isolated
Operating conditions
Potential equalization
1
2
2
