Endress+Hauser Micropilot FMR52 - Page 21

Micropilot FMR51, FMR52
Endress+Hauser 21
2-wire: 4-20mA HART, switch output
1
+
2
4...20 mA
HART
10 mm
Spare part
71108xxx
2- wire
4-20 mA PFS
HART
[02/03]
open
-
A
1
+
2
-
3
+
4
-
1
3
+
+
2
4
4-20mA/
FIELDBUS
4-20mA/
2-channel overvoltage protection
-
-
[17]
B
10
9
8
7
11
+
+
-
-
2
2
3
3
4
4
6
5
5
1
1
4...20 mA
≥250 Ω
3+
3+
4-
4-
+
+
–
–
$
$
%
4...20 mA
≥250 Ω
A0013759
 3 Terminal assignment 2-wire; 4-20mA HART, switch output
A Without integrated overvoltage protection
B With integrated overvoltage protection
1 Active barrier with power supply (e.g. RN221N): Observe terminal voltage
2 HART communication resistor (≥ 250 Ω): Observe maximum load
3 Connection for Commubox FXA195 or FieldXpert SFX350/SFX370 (via VIATOR Bluetooth modem)
4 Analog display device: Observe maximum load
5 Cable screen; observe cable specification
6 4-20mA HART (passive): Terminals 1 and 2
7 Switch output (open collector): Terminals 3 and 4
8 Terminal for potential equalization line
9 Cable entry for 4-20mA HART line
10 Cable entry for switch output line
11 Overvoltage protection module