Operating instructions

14
5 Connecting to power supply
VEGAMET 625 • Double channel HART
28970-EN-150129
Before setting up Ex versions, make sure the Ex separating chamber
is plugged on the left housing side (above the sensor terminals). The
pins for type and Ex coding must also be inserted correctly.
5.4 Wiring plan
17 18 19 20 21 22
9101112
1
234
23 24 25 26 27 28
13 14 15 16
56 78
L1
N
+
-
+- +- +-
+-
17 2 3
4 5 6
+-
1211
13
8
9
10
Fig. 3: Wiring plan VEGAMET 625 with two-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 625
8 Measurement data input with sensor supply (active input)
9 Measurement data input (passive input), not in Ex ia
10 Internal fail safe relay
11 HART two-wire sensor with Multidrop address 1
12 HART two-wire sensor with Multidrop address 2
13 Distributor
Wiring plan for two-wire
sensors