Vega ATEX, Safety Instructions

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16 VEGAMET 841, 842, 861, 862 • Installation in Zone 2
61274-01-191219
9 Electrical data
VEGAMET 841, 842
Non-intrinsically safe circuit
Supply circuit:
Terminals 91[+, L], 92[-, N] U = 24 … 65 V DC (-15 … +10 %)
P = 4 W (VEGAMET 841), 5 W (VEGAMET 842)
U = 100 … 230 V AC (-15 … +10 %), 50/60 Hz
P = 13 VA (VEGAMET 841), 15 VA (VEGAMET 842)
U
m
= 253 V AC (only for Ex ia)
Relay output:
Relay 1: terminals 61, 62, 63
Relay 2: terminals 64, 65, 66
Relay 3: terminals 67, 68, 69 1 A AC (cos phi > 0.9), 250 V AC, 250 VA
1 A DC, 60 V DC, 40 W
U
m
= 253 V AC (only for Ex ia)
Current output circuit:
I
out
1, terminals 41[+], 42[-]
In addition only VEGAMET 842:
I
out
2, terminals 43[+], 44[-]
I = 0/4 … 20 mA
U ≤ 16 V DC
Load ≤ 500 Ohm
U
m
= 253 V AC (only for Ex ia)
Intrinsically safe circuit
Supply and signal circuit:
4 … 20 mA-Sensor 1: Terminals 1[+], 2[-]
In addition only VEGAMET 842:
4 … 20 mA sensor 2: Terminals 4[+], 5[-] In type of protection intrinsic safety Ex ia IIC, IIB/IIIC.
For connection to a certified, intrinsically safe circuit.
U
o
≤ 23.3 V DC
I
o
≤ 109.8 mA
P
o
≤ 639.6 mW
Characteristics: linear
C
i
negligibly small
L
i
negligibly small
The maximum values given in the table can be used as concentra-
ted capacitances and concentrated inductances.
The values for IIC and IIB are also permissible for dust explosi-
ve areas.
Ex ia IIC IIB, IIIC IIA
Permissible external inductance L
o
0.2 mH 0.5 mH 0.5 mH 2 mH 10 mH
Permissible external capacitance C
o
120 nF 88 nF 580 nF 470 nF 770 nF
ATEX