Wiring Plan, Ex-D-Ia Double Chamber Housing - Siemens SITRANS LG270 Operating Instructions Manual

Connection compartment
Electronics compartment
22
Fig. 12: Connection compartment - double chamber housing
1 Voltage supply, signal output
2 For display and adjustment module or interface adapter
3 For external display and adjustment unit
4 Ground terminal for connection of the cable screening
5.5

Wiring plan, Ex-d-ia double chamber housing

Fig. 13: Electronics compartment - Ex-d-ia double chamber housing
1 Internal connection to the connection compartment
2 For display and adjustment module or interface adapter
3 Internal connection to the plug connector for external display and adjust-
ment unit (optional)
Note:
HART multidrop mode is not possible when using an Ex-d-ia instru-
ment.
SITRANS LG270 - Operating Instructions
4...20mA
+
1
2
( ) (-)
1
4...20mA
+
1 2
5
( )
(-)
1
2
3
Display
5 6 7 8
4
2
6 7 8
3
PBD-51041507