3.3 Function
3.3.1 Parameter sets
The detection behavior of the detectors is influenced by the parameter sets, so that
it can be specifically adjusted to the fire phenomena and environmental conditions
to be expected in the environment to be monitored.
The parameter sets for smoke and heat detection are programmed in the
detectors. During commissioning, the optimum parameter set must be selected for
the conditions at the place of installation. This is carried out using the control panel.
3.3.2 Danger levels
The detector's signal processing efficiently distinguishes between fire events and
deceptive phenomena. The basis for reaching a danger level is not only given by
measured values exceeding a 'response threshold'; moreover, the smoke density
progression is observed over a longer period of time and assessed by the
algorithms.
Fire detectors can transmit the following danger levels to the control panel:
Danger level
Meaning
Comment
0
No danger
Normal condition
1
Check the situation.
A different parameter set should
potentially be selected (inappropriate
application)
2
Warning
Possible danger
3
Alarm
Fire
The evaluation of the danger level and the decisions to be taken (e.g., activation of
remote transmission) are configured in the control panel.
3.3.3 Diagnosis levels
The detector monitors its operation largely autonomously. The signals of all
sensors are permanently monitored. In particular, the temperature sensors, light
emitters, and light receivers are monitored to ensure that they are functioning
correctly. Signal processing takes account of the monitoring results and adapts its
behavior accordingly.
The following diagnosis levels are derived from the different control measurements:
●
Normal
●
Observe information
●
Replacement recommended
●
Replacement necessary
●
Fault
When an error occurs which impairs the correct functionality of the detector, a fault
message is reported to the control panel. To correct the cause of the fault,
additional information is available in the detector. The diagnosis levels can be read
out using the FXS2061-O Wireless-Diagnose-Tool. You will find more information
in document A6V10425605.
Structure and function
Function
3
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