VEGA VEGAVIB 55 - transistor (NPN-PNP) - Manual (Page 15)

5 Connecting to voltage supply
5.1 Preparing the connection
Generally note the following safety instructions:
l
Connect only in the complete absence of line voltage
Connect the power supply according to the following diagrams.
Take note of the general installation regulations. As a rule,
connect VEGAVIB 55 to vessel ground (PA), or in case of
plastic vessels, to the next ground potential. On the side of the
instrument housing there is a ground terminal between the
cable entries. This connection serves to drain off electrostatic
charges.
The data for power supply are stated in chapter "Technical
data" in the "Supplement".
VEGAVIB 55 is connected with standard cable with round
cross section. An outer cable diameter of 5 ... 9 mm (0.2 ...
0.35 in) ensures the seal effect of the cable gland.
If cable with a different diameter or wire cross section is used,
exchange the seal or use an appropriate cable connection.
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) 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 wiring 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 Tighten the compression nut of the cable entry. The seal
ring must completely encircle the cable
Note safety instructions
Select power supply
Selecting connection cable
VEGAVIB 55 - - transistor (NPN/PNP) 15
Connecting to voltage supply
29303
-EN
-070109