User Manual

www.siemens.com/bt/asd
Answers for infrastructure.
ASD from Siemens –
invisibly efficient
Innovative technology for early fire detection with
outstanding reliability
New technology enables greater
detection reliability
Aspirating smoke detection (ASD) offers
early fire detection for a wide range of
applications. Air samples from the areas
requiring protection are continuously
drawn via pipes with sampling holes and
are evaluated in a detector chamber for
the presence of smoke.
The new aspirating smoke detectors
FDA221 and FDA241 from Siemens use
two wavelengths to differentiate between
smoke and deceptive phenomena. This
enables increased detection reliability even
in the most demanding environments.
In addition, FDA221 and FDA241 can be
directly integrated into a Cerberus™ PRO
fire detection system from Siemens.
The innovative detectors FDA221
and FDA241 take aspirating smoke
detection to a new level. Due to
the intelligent optical dual-wave-
length detection technology and
the patented detection chamber,
they detect fire very early and with
the highest accuracy.
Typical application areas
The new aspirating smoke detectors are
particularly suitable for application areas
where environmentally challenging con-
ditions prevail, where an aesthetically
appealing solution is desired or where
high detection sensitivity is needed.
This is the case, for example, in
–
large spaces such as lobbies, warehouses
and industrial production areas,
– hard-to-access areas like cable ducts
and metro stations,
– highly ventilated areas, including data
centers or clean rooms.