Endress+Hauser Proline Prosonic Flow B 200 Operating Instructions Manual page 31

Proline Prosonic Flow B 200 HART
Endress+Hauser
HART input
1
+
–
–
+
 11 Connection example for HART input with a common negative
1 Automation system with HART output (e.g. PLC)
2 Resistor for HART communication (≥ 250 Ω): observe maximum load →  26
3 Active barrier for power supply (e.g. RN221N)
4 Cable shield, observe cable specifications
5 Analog display unit: observe maximum load →  26
6 Pressure transmitter (e.g. Cerabar M, Cerabar S): see requirements
7 Transmitter
7.4 Ensuring the degree of protection
The measuring device fulfills all the requirements for the IP66/67 degree of protection,
Type 4X enclosure.
To guarantee IP66/67 degree of protection, Type 4X enclosure, carry out the following
steps after the electrical connection:
1. Check that the housing seals are clean and fitted correctly. Dry, clean or replace the
seals if necessary.
2. Tighten all housing screws and screw covers.
3. Firmly tighten the cable glands.
4. To ensure that moisture does not enter the cable entry, route the cable so that it
loops down before the cable entry ("water trap").

5. Insert dummy plugs into unused cable entries.
2 3 4
+
+
–
–
+
+
–
–
3 4
Electrical connection
5
4...20 mA
+
7
-
+
6
-
A0016029
A0013960
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