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5 Connecting to power supply
Conductive probe EL 8 •
32655-EN-220324
5 Connecting to power supply
5.1 Preparing the connection
Always keep in mind the following safety instructions:
Warning:
Connect only in the complete absence of line voltage.
•
The electrical connection must only be carried out by trained,
qualified personnel authorised by the plant operator.
•
Always switch off power supply, before connecting or disconnect-
ing the instrument.
You can find the electrical connection of EL 8 in the operating
instructions manual of the corresponding controller.
You can find suitable controllers in chapter "
Technical data
".
To ensure the seal effect of the rubber cover, the instrument is con-
nected with standard cable with round cross-section.
Make sure that the cable used has the required temperature resist-
ance and fire safety for max. occurring ambient temperature
Remove the black rubber cover and punch a small hole in the upper
side of the rubber cover with a sharp tool (e.g. a ball pen).
Note:
Do not use a knife or similar for puncturing
Push the connection cable through this opening.
5.2 Wiring plan
The ground connection of the controller must be on the same electri-
cal potential of the conductive vessel.
The EL 8 can be equipped optionally with a grounding eye. Connect
the ground cable according to the following illustration.
Note safety instructions
Voltage supply
Connection cable
Push cable through
Ground connection