Autronica Autroprime BS-200M - Dynamic Filtering (DYFI+)

System Characteristics
System Description, Autroprime Interactive Fire Detection System, 116-P-APRIME-SYSTEMD/XGB 2007-10-10,
Autronica Fire and Security AS
Page 15
2.20 Interactive Detectors with Dynamic Filtering
(DYFI+)
Autroprime features detectors with the digital filter technology DYFI+.
False alarms are virtually eliminated, and the system provides the
earliest possible warning of a potential fire - before it becomes a
problem.
The DYFI+ digital filtering is present in each detector. Each detector
has three different filter functions:
The smouldering fire filter provides
accurate and quick detection in the event
of a smouldering fire, i.e. in a situation
where a potential fire with no flames
develops during a longer period.
The transient filter virtually eliminates false
alarms caused by phenomena that are not
related to a real fire. Such phenomena can be
short pulses caused by, for example, vapour,
cigarette smoke etc.
The pollution filter maintains the chosen
sensitivity throughout the detector’s entire
lifetime, even with a polluted detector..