Product description | 11
4.1 Functional
principle
The smoke alarm utilises the
scattered-light principle. Light
beams are regularly sent out in
the measuring chamber, which are
then absorbed by the measuring
chamber. As soon as smoke enters
the measuring chamber, the light
beams are deected by the smoke
particles (scattered) and hit a lens.
This triggers the alarm, which is
signalled by the smoke alarm by
means of a loud alarm sound and the
red ashing LED in the test button.
4.2 Features
Contamination compensation:
The smoke alarm automatically
adapts to normal changes in its
environment and thus guarantees
a constant level of sensitivity and a
long service life.
Contamination forecast:
During the functional check, the
smoke alarm calculates whether
a secure operation can be
guaranteed for another 15 months
if the level of contamination
remains the same.
Continuous automatic self-check:
In normal operation, the smoke
alarm regularly carries out
an automatic self-check and
therefore only needs to be
checked once a year
(see chapter “Maintenance”).
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