VEGA VEGASCAN 693 - Manual (Page 15)

15
5 Electrical connection
VEGASCAN 693 • 15-channel HART signal conditioning instrument
29252-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
+ -
+ -
+ -
5
6 7 8
9
1 2
4
3
Fig. 4: Connection example VEGASCAN 693 with four-wire sensors
1 Measurement data input with sensor supply (active input)
2 Measurement data input (passive input), not in Ex ia
3 Internal fail safe relay
4 Distributor
5 Voltage supply of VEGASCAN 693
6 HART four-wire sensor with Multidrop address 1
7 HART four-wire sensor with Multidrop address 2
8 HART four-wire sensor with Multidrop address 3
9 Power supply for four-wire sensors
Wiring plan for four-wire
sensors