Structure and function
Function
3
36 | 108
Building Technologies
A6V10305793_m_en_--
Fire Safety
2016-02-15
3.3.2.2 Warning levels for CO
The functions described in this section are only available on the OOHC740.
Measured values above a response threshold depending on the parameter set for
CO are not the only basis for reaching a warning level for CO. The CO progression
is also observed over a longer period of time and evaluated using algorithms.
Neural fire detector OOHC740 can convey the following warning levels to the
control panel in the form of a technical message:
Warning level
for the Technical CO
Alarm
Meaning
Comment
0
No danger
Normal condition
1
Advance warning
level 1/
CO loading
Increased CO concentration (MAK value = 30 ppm CO
exceeded)
2
Warning
High CO concentration
3
Alarm, evacuation
The CO concentration has reached dangerous levels.
This warning level requires parameters to first be set for the CO
evaluation.
The warning level is not available in degraded mode operation or
in default parameterization!
The evaluation of the warning level and the decisions to be taken (e.g. activation
of remote transmission) are configured in the fire detection system.
3.3.2.3 Danger levels for 'Technical Ambient Supervision Message'
The point detectors can transmit the following danger levels to the fire control
panel:
Danger level
Meaning
Comment
0
No danger
Normal condition
2
Warning
Possible danger, threshold value
reached
The evaluation of the danger level and the decisions to be taken are configured in
the fire detection system.
