8 DUSTOMAT 21-67 H 09302-52-00
5. Intended use
The ESTA dust extractor has been manufactured according to the state of the art
and in compliance with safety regulations. It is suitable for commercial use, such
as in industrial firms and workshops.
The DUSTOMAT H-type devices are not only suitable for extracting dry, toxic
dusts with exposure limit values smaller than
0.1 mg/m³, but also for extracting (and separating) toxic dusts with occupational
exposure limit values (OELVs) including carcinogenic dusts. Since carcinogenic
dusts may also be extracted using dust-class-H devices, here – especially in
relation to air recirculation – the provisions of
TRGS 560 must apply.
They are fitted with a dust-class-"M" pre-filter and a dust-class-"H" main filter
(backup filter cassette) (high risk) and are tested based on Annex AA of standard
EN 60335-2-69.
Conductive extraction equipment (e.g., extraction hoods on machines) and
conductive parts of processing machines (e.g. devices in protection class II) that
are not earthed (grounded) through the dust extractor must be earthed in some
other way to prevent electrostatic charges.
The maximum allowable extraction port diameter for devices in dust class H is 140
mm.
It is forbidden to connect a dust source with a suction connection whose
diameter is greater than that of the dust extractor.
When connecting a suction hose, make sure to use only electrically
conductive hoses and that the electrical connection between the hose and
the port is perfect. If a so-called “spiral hose” is used, the metal spirals must
be stripped and pressed to the bare wall of the extraction port with a pipe
clamp after the hose is attached. Only metal should be used as tube
material.
The device must not be used or stored outdoors or under wet conditions.
The dust extractor
’s discharge openings must not be closed or covered. Otherwise,
the device will get impermissibly hot and will no longer work.
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