Potential Equalization; Requirements; Special Connection Instructions; Connection Examples - Endress+Hauser Proline Prosonic Flow P 500 Operating Instructions Manual

Proline Prosonic Flow P 500 HART
4)
Endress+Hauser
7.4

Potential equalization

7.4.1

Requirements

For potential equalization:
• Pay attention to in-house grounding concepts
• Take account of operating conditions like the pipe material and grounding
• Medium, Connect the sensor and transmitter to the same electric potential
• Use a ground cable with a minimum cross-section of 6 mm
for potential equalization connections
7.5

Special connection instructions

7.5.1

Connection examples

Current output 4 to 20 mA HART
1
 46 Connection example for 4 to 20 mA HART current output (active)
1 Automation system with current input (e.g. PLC)
2 Ground cable shield at one end. The cable shield must be grounded at both ends to comply with EMC
requirements; observe cable specifications →  202
3 Connection for HART operating devices →  82
4 Resistor for HART communication (≥ 250 Ω): observe maximum load →  196
5 Analog display unit: observe maximum load →  196
6 Transmitter
1
 47 Connection example for 4 to 20 mA HART current output (passive)
1 Automation system with current input (e.g. PLC)
2 Power supply
3 Ground cable shield at one end. The cable shield must be grounded at both ends to comply with EMC
requirements; observe cable specifications
4 Analog display unit: observe maximum load →  196
5 Transmitter
2 3
4
2 3
Electrical connection
2 (10 AWG) and a cable lug
4...20 mA
5
4
4...20 mA
4)
6
A0029055
5
A0028762
55