2.3. Intended use
The filter unit is intended for the extraction and filtration of grinding dust. The filter unit is also suitable for
extracting aluminium and magnesium dusts. (Please also see the section on “ATEX operation”)
WARNING
Improper use can damage parts and be a danger to life and limb!
The device must not be used for the extraction of oil-laden welding fume, explosive gases,
hybrid mixtures, etc. The device must not be operated in explosive zones.
Explosion hazard!
If aluminium and a spark producing material are processed alternately, the wet cyclone
separator and the ducting have to be cleaned from dry, adhering dust before the material is
changed.
As the accumulation of aluminium grinding dust produces a potential risk of explosion, the
interior of the WNA-AL protected against sparking due to the explosion-proof engine and the
grounded internal parts. The operator has to ensure that in the environment of the unit, such
accumulations are not produced, e.g. in ensuring a sufficient ventilation of the space.
3. Safety instructions
3.1. Definition of the hazard symbols
The device is constructed according to the state of the art and the recognised safety regulations.
Nevertheless, during use threats to life and limb of the user or other persons may arise. The impairment
of the machine or other property are also possible. In these instructions we warn by using corresponding
indications.
WARNING
WARNING
These instructions are made in case of risks that can lead to injury or death.
CAUTION
CAUTION
These instructions are made in case of risks that can lead to injury.
NOTICE
NOTICE
These instructions are made in case of risks that can lead to material damages.
Information notes are no hazard warnings; they call attention to useful information.
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18.11.2021