Potential Equalization - Endress+Hauser Proline Promag P 200 Technical Information

Potential equalization

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å 5 Connection example for switch output (passive)
1 Control system with switch input (e.g. PLC)
2 Power supply
3 Transmitter: Observe input values (® ä 7)
Requirements
Please consider the following to ensure correct measurement:
• Same electrical potential for the fluid and sensor
• Company-internal grounding concepts
• Pipe material and grounding
Connection examples for standard situations
Metal, grounded pipe
å 6 Potential equalization via measuring tube
Connection example in special situations
Unlined and ungrounded metal pipe
This connection method also applies in situations where:
• The customary potential equalization is not used
• Equalizing currents are present
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Proline Promag P 200
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A0016802
A0016315
Endress+Hauser