Electrical Connection - WIKA ELS Betriebsanleitung

5. Commissioning, operation
EN
Ensure that the sealing faces of the vessel or float switch are clean and
do not show any mechanical damage.
5.2 Mounting
Observe the torque values of screws specified in pipefitting work.
■
In the selection of the mounting material (sealings, screws, washers
■
and nuts), take the process conditions into account. The suitability
of the sealing must be specified with regard to the medium and
its vapours. In addition, ensure it has corresponding corrosion
resistance.
The float switch is mounted to the vessel from the outside
■
Mount the float switch correctly for the design of the process
■
connection.

5.3 Electrical connection

The electrical connection must only be
■
made by qualified skilled personnel.
Connection details and switching
■
functions are given on the connection
diagram on the instrument and the
connection terminals are appropriately
marked (exception: Versions with only
one normally closed or normally open
contact).
Seal the cable bushing  at the
■
connection housing .
The mains connection lines to be
■
provided must be dimensioned for
maximum instrument current supply
and comply with IEC 227 or IEC 245.
12
WARNING!
Ensure that the functional check does not start any
unintended processes.








Operating instructions float switch, model ELS