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Stratos-Micra • INSTALLER’S HANDBOOK • Iss. 1
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3.9 ClassiFire 3D -
Alarm levels and delays
tab
If this function is ticked, then the detector will ignore any pre-set time delays in the
event of a rapid increase in smoke density, thereby minimising response time to 'rapid
growth' fires. This function would normally only be used where there were long time
delays programmed on the alarm levels. This function is disabled by default.
3.10 Demo mode -
Alarm levels and delays
tab
Demonstration mode is an operating mode whereby the normal 24-hour learning
period is bypassed, so that the detector can reach high sensitivity after only the 15
minute FastLearn period. This can be used so that initial smoke testing and other com-
missioning can be carried out.
However, it must be understood that, since the alarm levels will be based solely
upon the sparse data gathered during the FastLearn period, there is a risk of nui-
sance alarms due to normal variations in ambient smoke levels. For this reason,
the detector should not be left in Demo mode for normal use when connected to
a fire panel.
3.11 Day start / Night start –
Day/Night switching
tab
These values are the times to the nearest hour at which the day/night switching is
desired to take place on the detector. Entries are made in 24-hour format, e.g.
19
for
7pm. Day and night switching is intended so that the detector may automatically select
a different sensitivity when the protected area is unoccupied and fewer contaminants
are being produced. ClassiFire automatically detects the change in smoke level after the
protected area is left, and if the time at which this happens is 70 minutes of
the programmed switchover time it selects the night-time histogram. This means that
changes in time setting, e.g. changing to summer time, may be ignored as the detec-
tor will take this into account. The default times for day and night start are 08:00 and
19:00 respectively
Note that if the environment actually becomes more contaminated during the
night period for any reason then ClassiFire will adapt to that too, reducing the
night-time sensitivity.
3.12 Disable Day / Night switching
–
Day/Night switching
tab
If day/night switching is not desirable, the
Disable day/night switching
box
may be ticked to leave the detector permanently in day mode.
3.13 Remote Isolate
-
Alarm actions
tab,
Remote input
subgroup
This function prevents the detector or Command Module from sending alarm notifica-
tions to the connected fire panel when the relevant activating terminals are shorted
together via volt-free contacts. It may be used during detector maintenance or smoke
testing.
When the function is enabled, entering a value of 01, 02 or 03 to the numeric field to
the left of the tick-box assigns the “I/P 1”, “I/P 2” or “I/P 3” terminals of a connected
relay/input card respectively as the activating terminals.
Remote terminals 4 and 5 are retained for future expansion.
When a unit is isolated, the FAULT light will be illuminated on the detector and a fault
signal will be sent to the fire panel, Command Module or SenseNET™.
Note: This function is only available via the optional Input/Relay Card. This board
is fitted in the same manner as an APIC card (see section 7.3). Only a single expan-
sion port is available, so an APIC card cannot be fitted at the same time as an
Input/Relay card.
