VEGA VEGASWING 83 fail safe and signal conditioning instrument VEGATOR 526 Ex - Manual (Page 19)

VEGASWING 81 W5 Ex.C, 83 W5 Ex.C fail safe 19
Electrical connection
3.2 Connection plan VEGATOR 526 Ex
The following figures show the currentless condition.
Sensor 1
1 2 3
2
4
6
8
12
20
28
24
22
10
14
16
18
30
32
z
z
2
4
6
8
12
20
28
24
22
10
14
16
18
30
32
d
d
E Ex i
2 N (-)
8
8
10
18
20
d b z
2 L1 (+)
30
32
+
-
Supply voltage
Fail safe relay
Level relay
Coded
pin
Separating wall
Not Ex-area
Ex-area
Connection with
overvoltage arresters
Meas. data input
(intrinsically safe
signal circuit)
Terminal socket with multipoint
connector
(part of housing type 589-10 Ex)
Type 589… (WHG etc.) Coordination of the
terminal socket or the
multipoint connector
Oscillator of VEGASWING
8… W5 Ex
Overvoltage arrester
Overvoltage arrester
Recurring test acc. to WHG
Key (opener) to interrupt the circuit
to the signalling or control facility
18
20