3 | Assembly
FISCHER Mess- und Regeltechnik GmbH
10/28
BA_EN_DE80
3.3 Electrical connection
• By authorized and qualified specialized personnel only.
• When the device is connected, national and international electrotechnical
regulations must be observed.
• Disconnect the system from the mains before electrically connecting the
device.
• Do not connect the device when it is live.
Depending on the version, a different PCB terminal is fitted. All versions except
Modbus have analogue output.
Model
Print terminal
2-wire
3-pin
3-conductor without switch output
3-pin
3-conductor with switch output
7-pin
3-conductor with Modbus RTU
(RS485)
5-pin
+
5 6 7
Operating voltage
and output
2-conductor
+
Δp
p2
p1
+U
b
-U
b
24 V DC
7
6
Output
DE80
Power supply
-U
b
+U
b
+U
b
-U
b
Fig. 9:
Electrical connection of a 2-conductor
+
5 6 7
Operating voltage
3-conductor without switch output
+
Δp
p2
p1
+U
b
-U
b
24 V AC/DC
7
6
Output
+Aout 1
Analogue output
5
+Aout 1
(~)
(~)
DE80
Power supply
+U
b
-U
b
+U
b
-U
b
Fig. 10:
Electrical connection of a 3-conductor without switch output
