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Page 158
TITANUS
PRO·SENS
®
TECHNICAL MANUAL
10.
Glossary
Technical Term
Definition
A
aerosol
also
: smoke aerosol
An aerosol is a floating particle in the microscopic
or submicroscopic particle size range. They
consist of unburned parts of the fire load,
intermediate products of the oxidation and finely
divided carbon (soot).
air flow sensor
Sensor for monitoring the total air flow in the pipe
system, i.e. checking the pipe system for blockage
and fracture; according to the requirements of the
air flow monitoring
→
→
→
→
single-hole monitoring and
the detection of a fracture at the end of the pipe
system can be realized.
air sampling smoke detection system
Active system of which the underpressure to take
air samples is produced by a ventilator fan
belonging to the system. The air samples are then
passed to a detection unit (smoke detector,
detector head or detector module).
Alarm
a) Acoustic and/or optical signal activated
through
→
→
→
→
smoke detectors to indicate a fire.
b) Freely adjustable alarm threshold. The
activation of the alarm definitely means the
detection of a fire. The fire department is
informed.
alarm current
An increased current in the
→
→
→
→
alarm state
(
→
→
→
→
quiescent current).
alarm state
The state of a fire detection installation or a part of
it as a reaction to an existing danger.
automatic smoke detector
Automatic detectors are detectors which detect
and analyze physical parameters which serve to
create danger-warning signals. Automatic smoke
detectors are e.g.
→
→
→
→
point-type detectors and
→
→
→
→
air sampling smoke detection systems.
C
central fire panel
Central part of a fire detection installation which
supplies the detectors with power, receives
signals to display them optically and acoustically
and, if required, transmits them and which checks
the installation for faults.
CMOS
C
omplementary
M
etal
O
xide
S
emiconductor,
complementary MOS technology
collective alarm
A non-differentiated, i.e. non-localizable
→
→
→
→
alarm,
which is indicated at a superior system.
collective detection system
Conventional detection line technology for which
all detectors connected to the same detection line
have the same collective address (common
indication and operation without identification of
the individual detector).
collective fault
A non-differentiated, i.e. non-localizable
→
→
→
→
fault
signal which is indicated at a superior system.
D
detection line
Monitored transmission line (
→
→
→
→
primary line)
through which the smoke detectors are connected
to the
→
→
→
→
central fire panel.
detection reliability
The detection reliability is the measure of reliability