Pre-Alarm Programming Pre-Alarm (AWACS™) ApplicationsAFP-200 PN 15511:H2 10/14/2002 165Latching and Non-Latching Pre-Alarm LevelsSome applications only require one level of Pre-Alarm, but the Pre-Alarm must belatching. To program a latching (non-restoring) Pre-Alarm, select ALERT=00% andselect an Action level. To program a non-latching (self-restoring) Pre-Alarm, selectACTION=00% and only select an Alert level.Note: Only the Action level will provide ACS point annunciation.G.3.3 Self-Optimizing Pre-Alarm FunctionNote: Self-Optimizing Pre-Alarm mode only operates with FSP-751 photoelectricdetectors. Self-Optimizing Pre-Alarm does not function when selected for ionizationdetectors.DescriptionThe control panel software (PN 73609 or higher) includes a Self-Optimizing Pre-Alarmselection, where the control panel automatically sets the optimal Pre-Alarm sensitivityfor each photoelectric detector (FSP-751). When a detector senses smoke above thecalculated optimal Pre-Alarm level, the control panel latches into an Action LevelPre-Alarm (refer to Figure 155 on page 165). The software compensates for electricalnoise transients, dust buildup, and other environmental factors.Figure 155 Sample of Action Level Pre-AlarmApplications include computer rooms, electrical equipment rooms, andtelecommunication facilities where environments are clean and stable and earlywarning is essential. Self-Optimizing mode is not recommended for applications (suchas cigarette smoking areas) where false smoke indications are present.ProgrammingYou can select Self-Optimizing for a photoelectric detector as follows:1. From the Special Zone Change screen, select the 99=PREALM to display thePre-Alarm screen as shown in Figure 156.Figure 156 Sample Pre-Alarm Screen with Self-Optimizing Settings2. 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 samplescreen for a detector selected for Pre-Alarm. For detailed information on pointPRE-ALARM@SMOKE (PHOTO)DETECTOR ADDRESS 03ACTION:1.31/1.50%03:02P 11/30/00 D03Address of detector in AlarmDate and time of occurrencePRE-ALARM@ZONE@99ALERT=00%@OF@ALARMACTION=01%@OF@ALARMAlert=00% of AlarmAction=01% of AlarmStatus banner forPre-Alarm Zone 99Technical Manuals Online! - http://www.tech-man.com
