VEGA VEGAFLEX 61 4 … 20 mA_HART two-wire User Manual
Page 57
-
I
nspection window
P
olyester foil
Voltage supply
O
perating voltage
-
N
on-Ex instrument
14 … 36 V DC
-
EE
x-ia instrument
14 … 30 V DC
-
EE
x-d-ia instrument
20 … 36 V DC
O
perating voltage with lighted indicating and adjustment module
-
N
on-Ex instrument
20 … 36 V DC
-
EE
x-ia instrument
20 … 30 V DC
-
EE
x-d-ia instrument
20 … 36 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
750
500
250
14
18
16
20
22
24
26
28
30
32
34
36
Ω
V
4
1
2
3
Fig. 35: Voltage diagram
1
HART load
2
Voltage limit EEx-ia instrument
3
Voltage limit non-Ex/Ex-d instrument
4
Operating voltage
Electrical protective measures
P
rotection, depending on housing version
-
P
lastic housing
IP
66/IP 67
-
A
luminium housing, stainless steel
housing - investment casting, stainless
steel housing - electro-polished
IP
66/IP 68 (0.2
bar)
4)
-
A
luminium and stainless housing, in-
vestment casting (optionally available)
IP
66/IP 68 (1
bar)
4)
A
suitable cable is the prerequisite for maintaining the protection rating.
VEGAFLEX
61 • 4 … 20
mA/HART two-wire
57
10 S
upplement
31833
-
EN
-100426