VEGA VEGASWING 83 fail safe and signal conditioning instrument VEGATOR 526 Ex - Manual (Page 10)

10 VEGASWING 81 W5 Ex.C, 83 W5 Ex.C fail safe
Product description
Relay output (fail safe)
Number 1 switching relay (closing contact, floating)
Mode A/B-switch
A - max. detection or overfill protection
B - min. detection or dry run protection
Contact 1 spdt each
Contact material AgNi and Au plated
Turn-on voltage min. 12 V DC
max. 250 V AC, 48 V DC
Switching current min. 10 mA DC
max. 2 A AC, 1 A DC
Breaking capacity max. 125 VA AC, 60 W DC
Fail safe relay (not fail safe)
Number 1 fail safe relay (spdt, floating)
Contact material AgCd and au plated
Turn-on voltage min. 10 mV
max. 250 V AC, 48 V DC
Switching current min. 10
µ
A
max. 2 A AC, 1 A DC
Breaking capacity max. 125 VA AC, 54 W DC
Indicating elements
LED in front plate
- green on
operating voltage on
- yellow switch point control
- red fault signal
Set-up key (green) ready for set-up
Approvals
Max. values U
O
= 18,9 V; I
K
= 95 mA; P = 647 mW
Characteristics linear
EEx ia IIC EEx ia IIB
Max. permissible outer inductance (mH)
≤
0,5
≤
1
≤
1,5
≤
2
≤
0,5
≤
1
≤
1,5
≤
2
Max. permissible outer capacitance (nF)
≤
52
≤
40
≤
27
≤
15
≤
200
≤
190
≤
177
≤
160
EEx ib IIC EEx ib IIB
Max. permissible outer inductance
≤
4 mH
≤
15 mH
Max. permissible outer capacitance
≤
240 nF
≤
1,1
µ
F
The intrinsically safe circuits are reliably galvanically isolated from all not-intrinsically safe
circuits up to a peak value of 375␣ V of the nominal voltage.