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The LaserPLUS detector is the central element of the VESDA smoke detection product range. Using unique detection principles, the LaserPLUS has an alarm sensitivity range of 0.005%–20% obscuration/m (0.0015%–6.25% obscuration/ft).
The LaserPLUS is classed as a “Very Early Warning Smoke Detector” which means that it detects fire at the earliest possible stage and reliably measures very low to extremely high concentrations of smoke.
Air is drawn into the LaserPLUS through a network of air sampling pipes by a high efficiency aspirator. Each inlet pipe has an airflow sensor that monitors airflow changes in the pipes. Air is exhausted from the LaserPLUS and may be vented back into the protected zone.
Inside the LaserPLUS, a sample of air is passed into the laser detection chamber via a dual-stage air filter. The first filtration stage removes dust and dirt from the air sample before entering the laser detection chamber for analysis. The second stage provides ultra fine air filtration to provide very clean air that is used to protect the optical surfaces inside the detector from contamination. The detection chamber uses a stable Class 1 laser light source and carefully positioned sensors to achieve the optimum response to a vast range of smoke types.
The status of the detector, and all alarm, service and fault events, are transmitted to displays and external systems via VESDAnet.