Operation Mode
Operator's Handbook, Autroprime Interactive Fire Detection System, 116-P-APRIME-OPERATE/FGB Rev. B, 2009-10-28,
Autronica Fire and Security AS
Page 25
Silent Alarm
Any fire alarm signal will be indicated at the panel without any delay,
and this is the Silent Alarm level. An output may be configured to be
activated at this level, as an example to trigger a coded message
through a voice alarm system or an output to make on site technical
personnel aware of the situation.
The delay timer T1 will be started and a countdown timer will be
shown in the display. For a Delayed detection zone the operator may
now initiate a prolonged T2 period.
Small Alarm
In the case of a Delayed Dependency detection zone there is an
automatic transfer from the initial T1 delay period to the prolonged T2
delay period. When this transfer occurs the level will be increased to
Small Alarm. Looking at a shopping centre this level may be used for
another voice alarm message making the employees start the
preparations for an evacuation. The display will show the T2
countdown.
(Small alarm level is also shown for Delayed and Dependency zones,
but should not be used as an activation criteria for outputs.)
Large Alarm
The table below shows that this level is the last one (or only) for all
types of detection zones. There are different ways of getting to this
level, either elapsed timers (T1 and/or T2), a second alarm signal or a
panel operation. If not configured otherwise, all outputs will be
activated at this level, fire brigade (FARE), sounders (FAD) and any
other outputs (FPE).
Silent Alarm Small Alarm Large Alarm
Immediate Action Detection Zone x
Delayed Action Detection Zone x x
Dependency Action Detection Zone x x
Delayed Dependency Detection Zone x x x
SOLAS Detection Zone x x
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