Installation Tips and Rules 5
Heat detectors are used in rooms where smoke
detectors are unsuitable, for example, where smoke
normally occurs. The heat detector reacts when
the temperature sensor in the detector reaches a
certain temperature. The detector can either react if
the temperature reaches a certain level, or by rapid
temperature rise over a given period.
MultiSensors are a combination of heat and smoke
detectors, and can be used where there is danger of
flaming fires, such as in kitchens. They can also be
used as pure heat detectors by disconnecting the
smoke part during periods when smoke will occur.
SPECIAL DETECTORS
Aspirating detectors are suitable in areas where early
detection is required, and in particularly dusty, damp
or clean rooms. In an aspiration system, air samples
are taken from the monitored area via a pipeline to a
centralized detection unit. The pipes are perforated
with holes that make up the detection points.
Beam detectors are used in wide-open spaces instead
of an array of smoke detectors. The detector protects
a given area by sending signals (IR beam) between a
transmitter and receiver, and detects the attenuation
or changes in frequency by heat or smoke.
Flame detectors are particularly suited for use in
connection with general protection of large open
areas where fire is expected to spread very rapidly.
They detect radiation from fires, by detection based
on UV radiotherapy, IR radiation or a combination
of the two. Autronica oers an optimal solution for
facade protection using flame detection.