Notifier AFP-200 Instruction Manual page 102

The control panel software (PN 73609 or higher) includes a Self-Optimizing Pre-Alarm selection, where the
control panel determines the highest practical Pre-Alarm sensitivity for each detector. Statistical methods and
special software filters are used to automatically set the optimal Pre-Alarm sensitivity. The software compen-
sates for electrical noise transients, dust buildup, and other environmental factors.
When a detector senses smoke above the calculated optimal Pre-Alarm level, the control panel will latch into an
Action Level Pre-Alarm. The Action Level Pre-Alarm Function was described earlier in this appendix.
Applications include computer rooms, electrical equipment rooms, and telecommunication facilities where
environments are clean and stable and early warning is very important. It is not recommended for applications
where false smoke indications could exist, such as cigarette smoking.
Self-Optimizing Pre-Alarm mode will only operate with SDX-551 or SDX-751 photoelectric detector. Ioniza-
tion detectors will not Pre-Alarm when Self-Optimizing is selected.
Self-Optimizing is selected by programming Special Zone 99 for ALERT=00 and ACTION=01. Select "P" on
the point programming screen for all photoelectric detectors for which Pre-Alarm is desired. The control panel
will determine the optimal Pre-Alarm Action Level sensitivity after approximately 10 minutes of data sampling.
The B501BH sounder base may be used with AWACS to give a local audible warning before general evacuation.
This may be used to reduce the impact of false alarms from cooking, smoking, etc. in a multiple unit housing
application. An individual in the apartment would receive advanced audible warning and could eliminate the
source of the pending false alarm.
Note: The control panel will activate the LEDs on the SDX or CPX detectors on a Pre-Alarm condition (Alert
level or Action level). The detectors LEDs are used to drive the sounder base. When the LEDs on the detector
light steadily for 10 seconds the sounder base will activate. If latching operation of the sounder base is desired,
program the control panel for Action Pre-Alarm. If non-latching (self-restoring) operation is desired, program
the system for Alert Pre-Alarm operation. If all sounder-bases are to activate on alarm, wire the power for these
bases through two CMX relay contacts that will reverse the polarity to the B501BH bases on alarm.
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AFP-200 Instruction PN 15511:F2 10/11/99