The Soteria Dimension Optical Detector contains two daylight filtered photo-diodes and three IR emitters in different positions and angles. Different combinations of these are used to act as smoke sensors and proximity sensors to measure the smoke level at the detector and to detect any physical obstruction or interference of the detector.

As this detector is chamberless, an IR LED emits light outside the detector. The light is scattered by smoke back towards the detector and registered by a photo-diode.

A pair of microprocessors control these sensors, setting the sensor timings and using a digital phase-sensitive detection algorithm to reduce noise and the effect of background light. They then provide digital filtering for transient rejection, compensation for drift and temperature and ultimately make an alarm decision.

Key Features:

• Low profile design
• Utilises digital CoreProtocol communications
• Compatible with Discovery and XP95 systems
• Integrated switchable isolator as standard
• 8-way DIL switch addressing
• Drift compensation
• FasTest for quicker testing
• Tricoloured LED status indicator
• Polycarbonate moulding for colour stability and strength
• Comprehensively tested to exceed EN 54-7 and EN 54-17 standards
• Locking mechanism (grub screw)