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5. Maintenance
5.1 Intervals
Both filters
and
must be regularly checked for soiling.
39
40
•
Coarse dust filter
39
ery 6 months.
•
Fine filter
should be changed after no more
40
than 1000 operating hours (filter change sym-
bol
appears in the display).
For reasons of hygiene, we recommend replacing the following parts at the intervals stated:
•
pressure measurement hose
months or sooner if soiled.
•
complete mask system every 6 to 12 months
depending on soiling
•
exhalation system in accordance with the rele-
vant operating instructions
See section entitled "Cleaning" in the relevant op-
erating instructions.
Servicing should be carried out at the following intervals as a preventive measure:
1. after every 5,000 operating hours (mainte-
nance symbol
appears in the display and
should be reset after every service),
2. after no more than 2 years (see service label
on rear of device).
3. after 10,000 hours or 4 years, clean or re-
place all parts in the air flow.
4. Replace service label
new data (see "8. Spare parts" on page 48).
Cut out the month at a sharp angle using a
punch or nail scissors. Affix the new service la-
bel to the left-hand side next to the filter flap.
In Germany, a safety control as laid down in §6 of the German law relating to owners of medical devices
[Medizinprodukte-Betreiberverordnung] must also be carried out every 2 years as specified.
needs to be changed ev-
every 6
11
with one with the
71
71
23
Maintenance
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