Self-Optimizing Pre-Alarm Function. Notifier AFP-200

Pre-Alarm Programming

Pre-Alarm (AWACS™) Applications

Latching and Non-Latching Pre-Alarm Levels

Some applications only require one level of Pre-Alarm, but the Pre-Alarm must be latching. To program a

latching

(non-restoring) Pre-Alarm, select ALERT=00% and select an Action level. To program a

non-latching

(self-restoring) Pre-Alarm, select

ACTION=00% and only select an Alert level.

Note: Only the Action level will provide ACS point annunciation.

G.3.3 Self-Optimizing Pre-Alarm Function

Note: Self-Optimizing Pre-Alarm mode only operates with FSP-751 photoelectric detectors. Self-Optimizing Pre-Alarm does not function when selected for ionization detectors.

Description

The control panel software (PN 73609 or higher) includes a Self-Optimizing Pre-Alarm selection, where the control panel automatically sets the optimal Pre-Alarm sensitivity for each photoelectric detector (FSP-751). When a detector senses smoke above the calculated optimal Pre-Alarm level, the control panel latches into an Action Level

Pre-Alarm (refer to Figure 155 on page 165). The software compensates for electrical noise transients, dust buildup, and other environmental factors.

Address of detector in Alarm

PRE-ALARM@SMOKE (PHOTO)

DETECTOR ADDRESS 03

ACTION:1.31/1.50%

03:02P 11/30/00 D03

Date and time of occurrence

Figure 155 Sample of Action Level Pre-Alarm

Applications include computer rooms, electrical equipment rooms, and telecommunication facilities where environments are clean and stable and early warning is essential. Self-Optimizing mode is not recommended for applications (such as cigarette smoking areas) where false smoke indications are present.

Programming

You can select Self-Optimizing for a photoelectric detector as follows:

1. From the Special Zone Change screen, select the 99=PREALM to display the

Pre-Alarm screen as shown in Figure 156.

Alert=00% of Alarm

Status banner for

Pre-Alarm Zone 99

PRE-ALARM@ZONE@99

ALERT=00%@OF@ALARM

ACTION=01%@OF@ALARM

Action=01% of Alarm

Figure 156 Sample Pre-Alarm Screen with Self-Optimizing Settings

2. Set Pre-Alarm settings: ALERT=00 and ACTION=01 as shown in Figure 156.

3. Program each detector for which Pre-Alarm is desired. Figure 157 shows a sample screen for a detector selected for Pre-Alarm. For detailed information on point

AFP-200 PN 15511:H2 10/14/2002

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