16
EN
2.00.390C - 1 User’s Manual
D Ü P E R T H A L S i c h e r h e i t s t e c h n i k G m b H & C o . K G
Frankenstr. 3
63791 Karlstein, Germany
Version March 2022
reports (if the date/time was changed, the three-character identifier of
the user who changed this setting is displayed next to the “<>” sign).
Date/Time <> Date/time before do not equal after change
Language =
Set language before equals after change
Speed
12->9 Fan speed was changed from level 12 to level 9
Cool Line 1->1 The setting for the refrigerator socket was left at “on”
(with 2.00.390C models only)
The report screen is quit by pressing the STOP/RESET key, or it returns
automatically to the standard display after a short time of inactivity.
3.7 Understanding Filter Operation and the User's Obligations
The filter enclosure can be accessed through the lateral panel of the unit
at the side to which the inlet tube connects. A two-staged filter system
is installed in this enclosure.
For servicing the particulate and activated carbon filters, observe in all
cases the safety messages in Sect. 1 above, in particular:
Caution
Wear appropriate personal protective gear when replacing the
filters, e. g., gloves or safety goggles. The kind and extent of
required gear depend on the substances being filtered; the rel
-
evant Material Safety Data Sheet contains this information.
Caution
Replacing the filters at a well ventilated location, e. g., the flue,
is recommended, as small quantities of the filtered substances
may be released.
3.7.1 Stage 1 Filter
Stage 1 of the filter system is a particulate filter that comes under Class F5
pursuant to DIN EN 779. It is able to filter particles of 1 µm - 10 µm. The
particulate filter works as a pre-filter pursuant to DIN 12927 for a main
filter (Stage 2 Filter). The effective dust-carrying capacity of the filter,
pursuant to ISO 12103-1 A4 (filter surface x dust-carrying capacity),
amounts to approx. 108 g.
3.7.2 Servicing/Replacing the Particulate Filter
If the filter is subject to a final pressure drop of 450 Pa maximum, it has
to be replaced or the absorbed dust has to be removed; it has to be re
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placed at least every year pursuant to DIN 6022. The final pressure drop
is indicated by the exhaust air monitor by an error coded E2 (“Exhaust
Air Error”). Whenever this error occurs, check also if there are any other
restrictions of the airflow.
The filter element of the Stage 1 filter may be vacuumed or patted off
carefully. While it is also water-resistant and may be wiped with water,
this should be done only very exceptionally. After wiping it with water,
it has to be left to dry completely before it is reinstalled. A replacement
filter has to be purchased exclusively from the distributor of the exhaust
air monitor.
3.7.3 Particulate Filter Disposal
The way to dispose of the particulate filter depends on the filtered sub
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stances. Comply with the requirements in force where it is used.
Hazardous substance residues may attach to the filter body.
3.7.4 Technical Specifications of the Particulate Filter
Filter Class (pursuant to DIN EN 779)
F5
Avg. Filtration Level (pursuant to DIN EN 779)
> 90%
Avg. Efficiency Level (pursuant to DIN EN 779)
> 40%
Summary of Contents for HNA-18 II ATEX F
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