The AlarmSense Open-Area Sounder Visual Indicator is designed for use in open-areas.

Operation

AlarmSense sounders and manual call points are fitted to the same zone as detectors. In quiescent state, the zone is powered at between 9V and 15V, nominally 12V, at which only detectors and call points operate. Sounders require 24V to operate.

When an alarm is detected on a zone, the control panel increases the line voltage to 24V on that zone causing the sounders to produce a continuous 'Evacuate' sound. Any voltage-sensitive output devices - relay modules or other alarm devices - also operate.

When the voltage is increased to 24V, the detector alarm current will reduce to 1.5mA. The detectors are latched in alarm until they are reset by reducing the voltage to less than 2V for greater than 1 second.

Output devices will de-activate each time the voltage is reduced to 12V unless otherwise stated in their specification.

It is possible to generate an 'Alert' tone by pulsing the supply voltage from 12V to 24V and the sounders configured to continuous output. Pulse frequency of 1 second on, 1 second off, is recommended for compliance with BS5839 Pt1.

System Compatibility

The AlarmSense Open-Area Sounder Beacon can only be used in a system that is powered and controlled by purpose designed AlarmSense fire control panels. Please contact us for further details on AlarmSense compatible control equipment.

Key Features

• Synchronised flashing red LED on sounder visual indicators and visual indicators
• Polarity insensitive
• IP65 rated
• Apollo tone - synchronised with AlarmSense sounders and sounder visual indicator bases