12
5 Connecting to power supply
Conductive probe EL 9 •
41050-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 9 in the operating
instructions manual of the corresponding controller.
You can find suitable controllers in chapter "
Technical data
".
The instrument is connected with standard two-wire cable without
shielding. If electromagnetic interference is expected which is above
the test values of EN 61326 for industrial areas, shielded cable should
be used.
Make sure that the cable used has the required temperature resist-
ance and fire safety for max. occurring ambient temperature
Use cable with round cross-section. A cable outer diameter of
5 … 9 mm (0.2 … 0.35 in) ensures the seal effect of the cable gland.
If you are using cable with a different diameter or cross-section,
exchange the seal or use a suitable cable gland.
5.2 Wiring plan
You can find the electrical connection of EL 9 in the operating
instructions manual of the corresponding controller.
1
3
2
Fig. 4: Connection compartment
1 Ground
2 Max.
3 Outer ground terminal
Instruments with Ex or WHG approval require a line break monitor-
ing. Please note the Ex-specific safety information for installation and
operation in Ex areas.
The line break monitoring is required for probes with approval accord-
ing to WHG (WRA) or Ex.
Note safety instructions
Voltage supply
Connection cable
Connection compartment
Line monitoring with
VEGATOR 131, 132
