Endress+Hauser Micropilot FMR50, Operating Instructions Manual

Page: 37 / 184

Micropilot FMR51, FMR52 HART Electrical connection
Hauser 37
2-wire: 4-20mA HART, 4-20mA
1
3
+
+
2
4
4
...2
0
mA
H
AR
T
4
...2
0
mA
1
0
mm
Sp
are
part
71108
xxx
2- wire
leve
l
4-2
0 mA
4-2
0 mA
HAR
T
[04
/05
]
open
-
-
11
A
1
3
+
+
2
4
4-20mA/
FIELDBUS
4-20mA/
2-channel overvoltage protection
-
-
[17
]
14
13
12
+
+
+
+
-
-
-
-
1
1
2
2
3
3
9
9
5
5
8
8
6
6
7
7
4
4
4
4
+
+
–
–
+
+
–
–
4...20 mA
4...20 mA
10
B
4...20 mA
4...20 mA
"
"
"
"
#
A0013923
 12 Terminal assignment 2-wire, 4-20 mA HART, 4...20mA
A Without integrated overvoltage protection
B With integrated overvoltage protection
1 Connection current output 2
2 Connection current output 1
3 Supply voltage for current output 1 (e.g. RN221N); Observe terminal voltage
4 Cable screen; observe cable specification
5 HART communication resistor (≥ 250 Ω): Observe maximum load
6 Connection for Commubox FXA195 or FieldXpert SFX350/SFX370 (via VIATOR Bluetooth modem)
7 Analog display device ; observe maximum load
8 Analog display device ; observe maximum load
9 Supply voltage for current output 2 (e.g. RN221N); Obeserve terminal voltage
10 Overvoltage protection module
11 Current output 2: Terminals 3 and 4
12 Terminal for the potential equalization line
13 Cable entry for current output 1
14 Cable entry for current output 2
This version is also suited for single-channel operation. In this case, current output 1
(terminals 1 and 2) must be used.