Electrical connection
Proline Promag W 400
38
Hauser
Ground cable
Copper wire, at least6 mm
2
(0.0093 in
2
)
A0016318
15
Potential equalization via ground terminal and ground disks
For remote device versions, the ground terminal in the example always refers to the
sensor and
not
to the transmitter.
Pipe with a cathodic protection unit
This connection method is only used if the following two conditions are met:
• Metal pipe without liner or pipe with electrically conductive liner
• Cathodic protection is integrated in the personal protection equipment
Ground cable
Copper wire, at least6 mm
2
(0.0093 in
2
)
+
–
A0016319
Prerequisite: The sensor is installed in the pipe in a way that provides electrical insulation.
1. Connect the two flanges of the pipe to one another via a ground cable.
2. Guide the shield of the signal lines through a capacitor.
3. Connect the measuring device to the power supply such that it is floating in relation to
the protective ground (isolation transformer).
For remote device versions, the ground terminal in the example always refers to the
sensor and
not
to the transmitter.
