VEGA D77 Hydrostatic pressure transmitters - Manual (Page 17)

Pressure transmitters D76 and D77 17
+
+ - -
1 2 3
-
Powered by a PLC with active input circuit
Processing via PLC.
Pressure transmitter
terminals
U
K
U
H
PLC
4 … 20 mA
Note:
An ammeter for local control of the output current can be connected to terminals 1 and 3. This
measurement can be carried out during operation, without interrupting the supply cable.
+ - -
1 2 3
!
Powered by a VEGA signal conditioning instrument
Standard wiring for nonstandardized output.
Pressure transmitter
terminals
U
H
0/4 … 20 mA
Analogue transmission, not
standardised
U
K
DISBUS
Electrical connection
Ammeter for local control
Ammeter for local control