Endress+Hauser Proline Promag W 500, Руководство по эксплуатации

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Proline Promag W 500 PROFINET Electrical connection
Hauser 67
A0029339
 21 Potential equalization via ground terminal and ground disks
1. Connect the ground disks to the ground terminal via the ground cable.
2. Connect the ground disks to ground potential.
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 least 6 mm 2 (0.0093 in 2 )
+
–
A0029340
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).