VEGA VEGAWELL 51 4 … 20 mA_HART - Manual (Page 33)

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M ax. length 1000 m (3280 ft)
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M in. bending radius 25 mm (with 25 °C/77 °F)
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D iameter approx. 8 mm (0.315 in)
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colour (non-Ex/Ex) - PE black/blue
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colour (non-Ex/Ex) - PUR, FEP blue/blue
Voltage supply
S
upply voltage
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N
on-Ex instrument 9.6 … 36 V DC
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EE
x-ia instrument 9.6 … 30 V DC
P ermissible residual ripple
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< 100 H z
U
ss
< 1 V
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100 H z … 10 kHz
U
ss
< 10 mV
L
oad see diagram
1200
880
600
380
12 18 16 9,6 14 20 22 24 26 28 29 30 32 34 36
Ω
V
1
4
2
3
Fig. 10: Voltage diagram
1
HART load
2 Voltage limit Ex instrument
3 Voltage limit non-Ex instrument
3 Supply voltage
Integrated overvoltage protection
N ominal leakage current (8/20 µs) 5 kA
M in. response time < 25 ns
Electrical protective measures
P
rotection
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T
ransmitter
IP 68 (25 bar)
S upplement
VEGAWELL 51 • 4 … 20 mA/HART 33
32468
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EN
-080604