Vega VEGAMET 391 - Wiring Plan for Four-Wire Sensor

+ + + + + --
9
10 11 12
14
15
13
OK
ESC
on
1 2 3 4 5 6
87 11103 95421 6 12
1718 141522 1620212324 19 13
2930 262734 2832333536 31 25
+-
L+
N-
5 4 3
6
1 7 82
Fig. 5: Terminal assignment with four-wire sensor
1 Operating relay 1
2 Operating relay 2
3 Operating relay 3
4 Operating relay 4
5 Operating relay 5
6 Operating relay 6
7 Current output
8 Operating voltage of the signal conditioning instrument
9 Measurement data input with sensor supply (active input)
10 Connection for HART modem for sensor parameter adjustment
11 Measurement data input (passive input), not with Ex-ia version
12 Digital input 1 … 4
13 Common ground for digital input 1 … 4
14 4 … 20 mA/HART sensor (four-wire version)
15 Power supply for four-wire sensor
Wiring plan for four-wire
sensor
VEGAMET 391 • 4 … 20 mA/HART signal conditioning instrument 15
5 Connecting to power supply
36032-EN-091116