Electrical connection
Levelflex FMP50 HART
16
Hauser
Block diagram, 2-wire: 4 to 20 mA HART, switch output
5
4
1
2
3
+
+
-
-
Y
I
6
1
2
+
-
3
4
7
A0036501
5
Block diagram, 2-wire: 4 to 20 mA HART, switch output
1
Active barrier for power supply (e.g. RN221N); observe terminal voltage
2
Resistor for HART communication (≥ 250 Ω); observe maximum load
3
Connection for Commubox FXA195 or FieldXpert SFX350/SFX370 (via VIATOR Bluetooth modem)
4
Analog display unit; observe maximum load
5
Cable screen; observe cable specification
6
Measuring device
7
Switch output (open collector)
Terminal assignment, 2-wire: 4 to 20 mA HART, 4 to 20 mA
A
1
+
2
-
3
+
4
-
B
1
+
2
-
3
+
4
-
1
3
5
5
2
4
A0036500
6
Terminal assignment, 2-wire: 4 to 20 mA HART, 4 to 20 mA
A
Without integrated overvoltage protection
B
With integrated overvoltage protection
1
Connection current output 1, 4 to 20 mA HART passive: terminals 1 and 2, without integrated
overvoltage protection
2
Connection current output 2, 4 to 20 mA: terminals 3 and 4, without integrated overvoltage
protection
3
Connection current output 2, 4 to 20 mA: terminals 3 and 4, with integrated overvoltage protection
4
Connection current output 1, 4 to 20 mA HART passive: terminals 1 and 2, with integrated
overvoltage protection
5
Terminal for cable shield
