How To Respond To A Pre-Alarm Warning; Pre-Alarm Alert And Action Levels; Responding To An Alert Pre-Alarm Warning; Responding To An Action Pre-Alarm Warning - Notifier AFC-600 Operating Manual

How to Operate the Control Panel with a Pre-Alarm Warning
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AFC-600 Operations PN 51033:A 3/8/99
Technical Manuals Online! - http://www.tech-man.com
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The 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 if you want to get an early warning of incipient or potential fire
conditions. The Pre-Alarm function provides one of two levels of Pre-Alarm as follows:
• Alert – a non-latching condition that causes a Pre-Alarm when a detector reaches
the programmed Pre-Alarm level.
• Action – a latching condition that causes a Pre-Alarm when a detector reaches the
programmed Pre-Alarm level.
Figure 18 shows a sample screen for an Alert Pre-Alarm message.
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An Alert Pre-Alarm automatically restores to normal when the detector sensitivity,
programmable to one of nine settings, drops below the programmed Alert level.
Zone F09 automatically clears when no Pre-Alarm conditions exist.
Figure 19 shows a sample screen for an Action Pre-Alarm message.
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An Action Pre-Alarm latches until you reset the system—even if the detector sensitivity
drops below the Action level. Zone F09 activates—but Zone Z00 (general alarm) and
the MPS-6 trouble and alarm relays do not activate. The fifth zone programmed, not the
first four, in the detector's CBE activates. A subsequent alarm condition for this
detector clears the Action indication from the LCD display.
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