VEGA VEGAMET 624 - Manual (Page 15)

15
5 Connecting to power supply
VEGAMET 624 • 4 … 20 mA/HART
28969-EN-130701
17 18 19 20 21 22
9 10 11 12
1 2 3 4
23 24 25 26 27 28
13 14 15 16
5 6 7 8
L1 N
+ -
+ - + - + -
+ -
1 7 2 3
8 9
4 5 6
+ -
11
12
10
Fig. 4: Wiring plan VEGAMET 624 with four-wire sensors
1 Internal operating relay 1
2 Internal operating relay 2
3 Internal operating relay 3
4 Internal current output 1
5 Internal current output 2
6 Internal current output 3
7 Voltage supply of VEGAMET 624
8 Measurement data input with sensor supply (active input)
9 Measurement data input (passive input), not with Ex-ia version
10 Internal fail safe relay
11 4 … 20 mA/HART sensor (four-wire version)
12 Power supply for four-wire sensor
Wiring plan for four-wire
sensors