5.4 Wiring in hazardous area
Hazardous area applications
Special
requirements apply to the location and interconnection of sensor and transmitter. See
"Installation in hazardous area (Page 12)"
The following shows how to connect the device in various applications.
Current output in passive and active modes
31
32
-
31
32
+ Loop
- Loop
R
1
R
2
Vs
R
3
31
3
2
R
L
+ Loop
- Loop
Ex
Non Ex
Isolator
Current output passive with HART
+ Loop
- Loop
Barrier / Isolator
Current output passive
R
s
=R
1
+R
2
+R
3
= Σ R
s
<
V
s
- V
smin
I
Loop max
R
s
=R
1
+R
2
+R
3
= Σ R
s
<
V
s
- V
smin
I
Loop max
Barrier / Isolator
Current output active with and without HART
R
L
< 650Ω
Connecting
5.4 Wiring in hazardous area
SITRANS MAG 6000 I/6000 I Ex de
Operating Instructions, 08/2018, A5E02083319-AH
37
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