Endress+Hauser Proline Promag P 100 - Potential Equalization

Proline Promag P 100
Endress+Hauser 27
3
4...20 mA
4
521
+
-
6
4...20 mA
+
-
7
3
4
52
+
-
-
+
A0019830
 13 Connection example for HART input (master mode) via current output (active)
1 Automation system with current input (e.g. PLC).
Prerequisite: automation system with HART version 6, HART commands 113 and 114 can be processed.
2 Cable shield, observe cable specifications (→  29)
3 Resistor for HART communication (≥ 250 Ω): observe maximum load (→  8)
4 Connection for HART operating devices (→  48)
5 Analog display unit
6 Transmitter
7 Sensor for external measured variable
Potential equalization 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
For devices in hazardous locations, please observe the guidelines in the Ex documentation (XA).
Connection examples for standard situations
Metal, grounded pipe
A0016315
 14 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