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TITANUS
PRO·SENS
®
TECHNICAL MANUAL
4.1.4
Sensitivity
According to EN54.20 (AS 7240.20), the sensitivity of an air sampling smoke
detection system can be divided into particular fire sensitivity classes. These
sensitivity classes describe particular example applications in which the
systems can be used. Permissible system project planning can be determined
for each classification according to Chapter 4.2.
Air sampling smoke detection systems with a higher sensitivity class according
to EN54.20 (AS 7240.20) also meet the requirements of the lower classes.
Class
Description
Example application
A
Air sampling smoke
detector with very high
sensitivity
Very early detection:
Highly diluted smoke in air
conditioned IT areas
B
Air sampling smoke
detector with increased
sensitivity
Early detection:
Diluted smoke in conventional
cooled IT areas.
C
Air sampling smoke
detector with standard
sensitivity
Standard detection:
Fire detection with the benefits of air
sampling smoke detection systems
The fire sensitivity classes A, B and C can be achieved with each detector
module available, depending on the number of aspiration apertures.
The table shows the selectable sensitivity levels of the TITANUS
PRO·SENS
®
:
Activation sensitivity (fire alarm)
TITANUS
PRO·SENS
®
Detector module
Type DM-TP-50-L
Detector module
Type DM-TP-10-L
Detector module
Type DM-TP-01-L
0.8 % light obscuration/m
0.12 % light obscuration/m
0.4 % light obscuration/m
(Standard)
0.06 % light obscuration/m
(Standard)
1 % light obscuration/m
0.2 % light obscuration/m
0.03 % light obscuration/m
0.5 % light obscuration/m
(Standard)
0.1 % light obscuration/m
0.015% light obscuration/m
Project planning for the monitored surface is always carried out according to
national specifications for point-shaped smoke detectors.
INSTRUCTION
