VEGA VEGABAR 74 4 … 20 mA_HART User Manual
Page 32
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-
M
in. bending radius at 25 °C/77 °F
25
mm (0.985 in)
-
D
iameter
approx. 8 mm (0.315 in)
-
C
olour - standard PE
B
lack
-
C
olour - standard PUR
B
lue
-
C
olour - Ex-version
B
lue
Voltage supply
S
upply voltage
-
N
on-Ex instrument
12 … 36 V DC
-
EE
x ia instrument
12 … 29 V DC
P
ermissible residual ripple
-
<
100 H
z
U
ss
<
1 V
-
100 H
z … 10 kHz
U
ss
<
10
mV
L
oad
see diagram
1000
710
500
250
12
18
16
14
20
22
24
26
28
29
30
32
34
36
Ω
V
1
4
2
3
Fig. 10: Voltage diagram VEGABAR 74
1
HART load
2
Voltage limit Ex instrument
3
Voltage limit non-Ex instrument
4
Voltage supply
L
oad in conjunction with VEGADIS 12
see diagram
S
upplement
32
VEGABAR
74 - 4 … 20
mA/HART
28432
-EN
-070718
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