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Stratos HSSD-2 • INSTALLER’S HANDBOOK • Iss. 12
3.4.9 Auto FastLearn enable / disable (Yes/No - Address 001-127)
Setup menu > Alarm levels
As default, this function is set to Yes. This ensures that if the detector is powered down
for any reason (e.g. for maintenance or to be moved to a new area), a FastLearn is
commenced automatically on power-up. There may be occasions when it is desirable to
power down the detector for short periods of time, and it is highly likely that ambient
contaminant levels will be the same on power-up. Under these circumstances it may not
be desirable that the detector should to go through the whole learning process again.
To this end, this function can be set to No before power-down, where upon it will return
to the original settings on power-up.
3.4.10 Time Delay Override (Yes/No - Address 001-127)
Setup menu > Alarm actions
If this function is set to Yes, then the detector will ignore any pre-set time delays in the
event of an unacceptably 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.
3.4.11 Cascading alarms (Yes/No - Address 001-127)
Setup menu > Alarm actions
Setting this function to Yes means that only when the detector’s controller has gone
into Pre-Alarm does the controller start counting down the main Fire delay i.e. the time
delays on Pre-Alarm and Fire 1 are cumulative. The Aux alarm is not included in the
cumulative delay since it may be set to a higher level than either the Pre-Alarm or Fire
1 levels.
3.4.12 Latching alarms (Yes/No - Address 000-127)
Setup menu > Alarm actions
When this function is set to Yes it requires a reset on the front panel or a remote reset
to clear an alarm condition. It may be applied to the Command Module or a Standard
Detector.
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