» Intelligent Environmental Alarm System: AlarmGuard

The Aqualeak AlarmGuard Multizone Alarm System has been designed to monitor environmental alarms such as water leaks, oil or chemical leaks, temperature or overtemperature, humidity, remote fire sensors, proximity sensors...  etc. in a large number of separate areas of one or more buildings where a conventional BMS system may not be in use.  The AlarmGuard also inputs alarms from non-Wayscale alarm systems via their no-volt signalling relays.

The AlarmGuard control Unit is provided with audio-visual alarm display via an alarm sounder and indicator lights for system live, power fault, line fault and alarm detected. It is also provided with a LCD display providing customer defined alphanumeric information on all alarms such as : WATER LEAK DETECTED <Sector 28 Floor3 Room 57>. The unit is provided with no-volt relays for common alarm, common fault, new alarm and power fault. Battery backup is an available option as is a History Log with time, day and date of up to 250 alarm events.

The AlarmGuard system has been specifically designed to be versatile from the site cabling point of view. As a normal ‘zonal’ alarm system, the AlarmGuard carries out all of the alarm detection processing on board. The controller is connected by individual leader cables to the sensors or alarm systems being monitored. 

If the distance between the zone and the control unit is quite long then the AlarmGuard system becomes ’intelligent’ and utilises ‘zone processing’ carried out remotely within ‘zone processor nodes’ located in the areas being monitored. These are connected to the controller by signal cable which can be 'branched' or 'teed' as often required to as many areas as required with no return signal lines. Connected to the nodes would be appropriate sensors.

The AlarmGuard System is also 'reactive'. When the system locates the alarm it can prevent further damage by providing signals via the same data-network to selective powerdown, valve shutdown, or remote alarm facilities in the monitored area. Multiple alarms and remote shutdowns can therefore be signalled via a single data cable.