VEGA VEGABAR 87 4 … 20 mA_HART - Operating Instructions - Manual (Page 24)

24
5 Connecting to power supply
VEGABAR 87 • 4 … 20 mA/HART
45044-EN-131010
5.6 Double chamber housing Ex d ia
5 6 7 8 1 2 +
( ) (-)
3 1
2
4...20mA
Fig. 20: Electronics compartment, double chamber housing Ex d ia
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. 21: 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