Notifier AFP-3030 Programming Manual

Also see for AFP-3030: Operation manual Installation manual Operation manual Installation manual

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Notifier AFP-3030 Programming Manual Manual pdf 112 page image

106 AFP-3030 Programming Manual — P/N DOC-01-032:A 26/06/2015Intelligent Sensing Applications Pre-AlarmC.2.5 Cooperative Multi-Detector SensingCooperative Multi-Detector Sensing is the ability of a smoke detector to consider readings fromnearby detectors in making alarm or pre-alarm decisions. Each detector can include up to two otherdetectors in its decision. Without statistical sacrifice in the ability to resist false alarms, CooperativeMulti-Detector Sensing allows a detector to increase its sensitivity to actual smoke by a factor ofalmost 2 to 1. Ion, photo and laser detector types can participate. Cooperative Multi-DetectorSensing also allows the combination of ionization with photoelectric technology in reaching analarm decision. The figure below shows a graph representing Cooperative Multi-Detector Sensing:Figure C.5 Cooperative Multi-Detector SensingC.3 Pre-AlarmC.3.1 DefinitionThe Pre-Alarm function is a programmable option which determines the system’s response to real-time detector sensing values above the programmed setting. Use the Pre-Alarm function to get anearly warning of incipient or potential fire conditions. There are two levels of Pre-Alarm:• Alert (Refer to “Alert Level” below)• Action (Refer to Appendix C.3.3, “Action Level”, on page 107)Alert and Action Pre-Alarm settings are set with point programming. Unique Pre-Alarm sensitivitylevels (PA) for individual detectors are listed in Appendix C.4, “Detector Sensitivity Settings”, onpage 107.The LEDs on detectors polled in FlashScan mode will light steady green when in prealarm.C.3.2 Alert LevelAlert FunctionsThe control panel software, in addition to checking for alarm levels, checks for Prealarm thresholdsfor each addressable, intelligent smoke detector programmed for Pre-Alarm. If a detector’s real-time sensing level exceeds the programmed Alert threshold, the control panel indicates a Prealarmcondition for the detector. The control panel does the following functions when a detector reachesprealarm level:• The Prealarm message is sent to the History buffer and to installed printers. The message issent (and time stamped) at the time that it first occurred. This historical data could providevaluable information about the progress of a fire.• The PRE-ALARM LED flashes and the panel sounder pulses until acknowledged.• Zone Z000 (general alarm) or any other zone and the System Fault and System Alarm relaysdo not activate.SMOKE OBSCURATIONTime (minutes)AlarmCombined3 SensorsAwacs5a.cdr