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6.2
Connection diagram
Connection
4 to 20 mA, two-wire (output 405)
Voltage supply
DC 16 to 28 V
Functional bonding conductor FB
a
The pressure transmitter has to be connected to the potential equalization system of the plant via the process con-
nection.
Color coding: connecting cable round plug
M12 × 1
The color coding is only valid for A-coded standard cables!
CAUTION!
Ground (functional groundin) the case of the pressure transmitter using the process connection
to protect against electromagnetic fields and electromagnetic charges!
6.3
Connection example
Pressure
Transmitter
p
=
U
/S+
B
0 V/S-
a
Ex-I Power Supply/
Input Isolating
Amplifier
Type 707530
+
+
=
=
4 to 20 mA
–
–
(L1)
(N)
(L+)
(L-)
Terminal assignment (Figure: connection to the pressure
transmitter)
11
24
Attached ca-
Loose strand-
ble
ed wires
BU
BU
BK
BK
-
-
1 BN
Brown
2 WH
White
3 BU
Blue
4 BK
Black
Controller
Display
Unit
+
–
+
+
4 to 20 mA/0 to 20 mA
–
+
–
+
+
0 to 10 V
–
6 Installation
4
3
5
1
2
36
Round plug
M12 × 1
1 BN
3 BU
-
Recorder
–
+
–
–
+
–
1
2
61
Cable socket
1
2
-
21
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