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6.2 Filters
The extractor contains a 2 level filter system comprising:
• dust bag
•
fine particle filter
NEVER operate the dust extractor without the complete filtration system.
Use only the original Renfert filter (see spare parts list).
6.2.1 Replacing the Fine Particle Filter
Examine and replace the fine particle filter (6) on a regular
basis, at least once a year. It must always be replaced if the
dust drawer symbol (33, Fig. 2) blinks, despite a new dust bag
having just been replaced.
⇒
Pull the upper front panel (4, Fig. 1) forward and off.
⇒
Turn the fine particle filter in an anti-clockwise direction to
release it.
⇒
Pull the fine particle filter straight forwards and out of the unit
and dispose of it properly.
⇒
Install a new fine filter and fully insert it over the holder
bar (25).
⇒
Turn the fine particle filter in a clockwise direction and hand-
tighten it in place.
⇒
Inspect the seal on the front panel for damage and replace it,
as required.
⇒
Snap the front panel back in place.
6.2.2 Replacing the Exhaust Filter
The exhaust filter (26) primarily traps particles rubbed off the
suction turbine graphite brushes. The filter should be replaced
annually:
⇒
Remove the suction pipe (see chapter 4.5.1).
⇒
Press the lock tabs (4 pcs.) on the filter cassette (14) and pull
the filter cassette off.
⇒
Dispose of the filter and filter cassette properly.
⇒
Insert a new filter mat in the filter cassette so that the smooth,
compressed side of the filter mat faces down or outwards
when the filter is installed.
⇒
Replace the new filter cassette with the new filter.
⇒
Make sure the filter cassette is properly seated and locked in
place on all lock tabs.
6.2.3 Replacing the Electronics Filter
Cooling air for the unit’s electronics passes through the electron-
ics filter (11). The type of material trapped in the filter depends
on the ambient laboratory conditions.
⇒
The filter should be examined annually and replaced as nec
-
essary:
⇒
Press on the lock tabs (2 pcs.) on the filter cassette (11) and
pull the cassette off.
⇒
Dispose of the filter and filter cassette properly.
⇒
Insert a new filter in the filter cassette.
⇒
Re-install the new filter cassette with the new filter.
⇒
Make sure the filter cassette is properly seated and locked in
place on both lock tabs.
Fig. 19
25
6
Fig. 20
26
14
Fig. 21
11
EN
