Siemens OOHC740 - Specification

Planning
Fire detection
4
56 | 108
Building Technologies
A6V10305793_m_en_
--
Fire Safety
2016-02-15
4.2.2.3 Specification
The following table shows the characteristics and fields of application of the
parameter sets of the point detectors OOH740 and OOHC740.
No. Name Optical Thermal
Typ. Response
time
from - typ. - to
Sensitivity,
open fire
Sensitivity,
smoldering fire
Static
activation
temperature
Differential activation
temperature
(temperature
increase >10 K/min)
Differential
activation
possible from:
[s] [%/m] [%/m] [°C] ∆T [K] [°C]
8 'High Suppression' 60 - 80 - 360 2.3 8 80 25 30
5 'Suppression'
2
90 - 160 - 760 3.2 11.4 80 29 30
12 'Suppression CO'
1
75 - 150 - 760 2.3…3.2
4
8.6…11.4
3
80 29 30
7 'High Compensation' 80 3.2 11.4 80 29 30
0 'High Compensation' 80 3.2 11.4 80 29 30
2 'Robust' 80 3.2 11.4 80 29 30
4 'Balanced' 40 - 64 - 300 2.3 8 80 25 30
10 'Balanced CO'
1
25 - 50 - 300 1.4…2.3
4
5…8
3
80 25 30
6 'Fast Response' 20 - 30 1.6 5.6 80 22 3
9 'High Sensitive Fast' 20 - 30 0.8 2.8 60 16 3
11 'Super Sensitive'
5
12 1.0 1.5 60 8 3
14 Application-specific parameter sets
15
1
The CO signal helps to speed up alarm activation in the event of smoldering fires but cannot
trigger fire alarms on its own.
2
Only for OOHC740: If the 'Suppression (5)' parameter set is needed, 'Suppression CO (12)' should
be used for new applications.
3
Depends on CO proportion.
4
In the case of open fires, the proportion of CO in the fire gas make-up is low. With high proportions
of CO, the sensitivity could theoretically increase by up to 0.9 %/m with open fires (i.e. instead of
2.3 %/m to 1.4…2.3 %/m, for example).
5
Only in the OOH740 from ES ≥20
The static activation temperature of 80
°C is above the operating temperature
range permissible for continuous periods.
The point detector may only be used in continuous operation within the specified
temperatures!