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5 wiring plan, ex-d-ia double chamber housing – VEGA VEGAFLEX 86 4 … 20 mA_HART two-wire Coax probe User Manual

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5 Connecting to power supply

VEGAFLEX 86 • 4 … 20 mA/HART two-wire

42284-EN-130612

5.5 Wiring plan, Ex-d-ia double chamber housing

5 6 7 8

1

2

+

( )

(-)

3

1

2

4...20mA

Fig. 16: 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. 17: 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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