KROHNE OPTISWITCH 3000C Relay EN - Manual (Page 13)

5 Connecting to voltage supply
5.1 Preparing the connection
Generally not the following safety instructions:
l
Connect only in the complete absence of line voltage
Connect the power supply according to the following diagrams.
Oscillator VB60R is designed in protection class 1. To maintain
this protection class, it is absolutely necessary that the ground
conductor is connected to the internal ground terminal. Take
note of the general installation regulations. As a rule, connect
OPTISWITCH 3000 C to vessel ground (PA), or in case of
plastic vessels, to the next ground potential. On the side of the
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 the "Technical data"
in the "Supplement".
OPTISWITCH 3000 C 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 steps
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 the opening lever of the terminals downward, you will
hear the terminal spring closing
8 Check the hold of the wires in the terminals by lightly
pulling on them
Note safety instructions
Select power supply
Selecting the connection ca-
ble
OPTISWITCH 3000 C - with relay output 13
Connecting to voltage supply
30059
-EN
-060830