5 wiring plan, ex-d-ia double chamber housing – VEGA VEGAFLEX 86 4 … 20 mA_HART two-wire User Manual
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5 Connecting to power supply
VEGAFLEX 86 • 4 … 20 mA/HART two-wire
41844-EN-130612
5.5 Wiring plan, Ex-d-ia double chamber housing
5 6 7 8
1
2
+
( )
(-)
3
1
2
4...20mA
Fig. 22: Electronics compartment, 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:
If an instrument with Ex-d-ia approval is used, HART multidrop op-
eration is not possible.
4...20mA
2
1
2
+
( )
(-)
1
Fig. 23: Connection compartment, Ex-d double chamber housing
1 Voltage supply, signal output
2 Ground terminal for connection of the cable screen
Electronics compartment
Connection compartment
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