2.4 Electrical connection
Screened twisted pairs are recommended for the instrumentation cable.
Supply voltage: 11.5…45 V DC
Internal protection circuits protect against reverse polarity, HF interference and
overvoltage peaks.
A test signal can be measured using Terminals 1 and 3 without interrupting the process
measurement.
Cable connection
•
Unscrew the cover of the connection compartment.
•
Insert the cable through the cable entry.
•
Connect the cable wires as shown in the connection diagram.
•
Screw down the cover.
1
2
3
+
Test
0003
4…20 mA
4…20 mA
11.5...45 V DC
BA187Y75
Figure 2.10
Electrical connection of the
Cerabar S
For all versions with 4…20 mA
Cerabar S
4…20 mA
Han7D
1
2
3
8
7
6
5
4
–
+
1 2 3
BU
1
BN
GN-YE
2
3
3
BA187Y76
PE-Connection
(green yellow)
– (brown)
+ (blue)
BU: blue
BN: brown
GN-YE: green yellow
Figure 2.11
Harting plug pin assignment
Cerabar PMP 71 K
1560
U/V
R/
Ω
0
1000
500
11,5
30
45
20
BA2
34Y09
Figure 2.12
Load diagram
2 Installation
Cerabar S
12
Hauser
