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1 Safety instructions
•
In order to guarantee the correct condition of the unit for the operating time it
is necessary to use the unit only for media to which the wetted materials are
sufficiently resistant (→ Technical data).
• The responsibility whether the unit is suitable for the respective application lies
with the operator. The manufacturer assumes no liability for consequences of
misuse by the operator. Improper installation and use of the unit result in a loss
of the warranty claims.
• The unit complies with the standard EN 61000-6-4. In domestic areas
(EN 61000-6-3) the unit must be installed in closed metal tanks / pipes.
2 Functions and features
The unit monitors the level of liquid, aqueous media in tanks and pipes. It is in
particular intended for the detection of coolants (e.g. R134a, R22 or R717) and
oils. It can be used for point level detection and run-dry protection.
• The unit can be operated at medium temperatures of -20...85 °C.
• Tank pressure: -1…40 bar.
3 Installation
The device is either installed and sealed directly via the G1/2 internal thread or via
a suitable mounting adapter.
For direct installation via the internal thread:
► Use suitable sealing material or a suitable (for refrigeration systems) seal-
ing method.
The sensor housing must be in electrical contact with the metal
process connection.
For installation via mounting adapter:
A correct fit and function of the unit and ingress resistance of the
connection are only ensured using ifm adapters.
Available accessories: www.ifm.com → Data sheet search → Accessories
► Observe the installation instructions of the adapter used.
► Weld or install the adapter into the tank / pipe.
► Slightly grease the thread of the sensor using a lubricating paste which is
suitable and approved for the application.
