10
4 Mounting
Conductive probe EL 9 •
41050-EN-220324
4 Mounting
4.1 General instructions
In general the level switch can be mounted in any position. The instru-
ment must be mounted in such a way that the probe is at the height of
the requested switching point.
The probe is provided with a special hexagon for tightening. Due to
the hexagon shape, the housing itself can be used to screw the instru-
ment in.
The wrench size is stated in chapter "
Supplement
" under "
Dimen-
sions
".
Use the recommended cables (see chapter "
Connecting to power
supply
") and tighten the cable gland.
You can give your instrument additional protection against moisture
penetration by leading the connection cable downward in front of the
cable gland. Rain and condensation water can thus drain off. This
applies mainly to outdoor mounting as well as installation in areas
where high humidity is expected (e.g. through cleaning processes) or
on cooled or heated vessels.
Fig. 2: Measures against moisture ingress
The process fitting must be sealed if there is gauge or low pressure
in the vessel. Before use, check if the sealing material is resistant
against the measured product and the process temperature.
The max. permissible pressure is specified in chapter "
Technical
data
" or on the type label of the sensor.
4.2 Mounting instructions
If EL 9 is mounted in the filling stream, unwanted false measurement
signals can be generated. For this reason, mount EL 9 at a position in
the vessel where no disturbances, e.g. from filling openings, agitators,
etc., can occur.
This applies particularly to instrument versions with a longer probe.
Switching point
Handling
Moisture
Pressure/Vacuum
Inflowing medium
