2 connection procedure – VEGA VEGACAL 65 For connection to a signal conditioning instrument User Manual

Page 16

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5 Connecting to power supply

VEGACAL 65 • For connection to a signal conditioning instrument

30320-EN-130917

suppressed, but the protective effect against high frequency interfer-

ence signals remains.

Take note of the corresponding installation regulations for Ex applica-

tions. In particular, make sure that no potential equalisation currents

flow over the cable screen. In case of grounding on both sides this

can be achieved by the use of a capacitor or a separate potential

equalisation.

5.2 Connection procedure

Proceed as follows:
1. Unscrew the housing cover
2. Loosen compression nut of the cable entry
3. Remove approx. 10 cm (4 in) of the cable mantle, strip approx.

1 cm (0.4 in) of insulation from the ends of the individual wires

4. Insert the cable into the sensor through the cable entry
5. Lift the opening levers of the terminals with a screwdriver (see

following illustration)

6. Insert the wire ends into the open terminals according to the wir-

ing plan

7. Press down the opening levers of the terminals, you will hear the

terminal spring closing

8. Check the hold of the wires in the terminals by lightly pulling on

them

9. Connect the screen to the internal ground terminal, connect the

outer ground terminal to potential equalisation

10. Tighten the compression nut of the cable entry. The seal ring must

completely encircle the cable

11. Screw the housing cover back on
The electrical connection is hence finished.

Fig. 7: Connection steps 6 and 7

Connection cable

for Ex applications

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