Dual Aspirating Smoke Detector ASD, Discovery loop powered Air Sampling unit, Two optical detectors, VDS Approved
Includes aspirating fan, can be installed up to 50m away from the sampling point, IP65 rated enclosure, VDS Approved.
The Discovery Aspirating Smoke Detector (ASD) of Context Plus is a point based professional air-sampling unit, designed to complement analogue addressable system technology. It combines standard field serviceable smoke detectors with a stand-alone air sampling solution to provide protection of difficult to access, environmentally demanding, aesthetic or architecturally restricted areas.
Air is drawn from the protected area through one or two perforated 25mm pipes per channel. A powerful fan together with sophisticated air-flow monitoring and control circuitry ensures that transport delays are minimised and air-flow is kept within working limits. System status and flow control is continuously displayed (per channel), with on-board fault relays allowing remote fault monitoring of each channel. Power management ensures that operating current is kept to a minimum, allowing superior performance and optimisation of external power supply and standby battery resources.
• EN 54-20 approved
• Dual sampling unit
• Addressable monitoring of fail-safe fault relays. Two On-board fault relays allowing remote fault monitoring of each channel.
• The Discovery Aspirating Smoke Detector (ASD) can be installed up to 50m away from the sampling point
• IP65 rated enclosure
• Uses the Discovery Optical Analogue Addressable Detector, Discovery detectors offer effective false alarm management by a combination of EN 54 approved operating modes and sophisticated algorithms. Drift compensation further reduces the likelihood of false alarms caused by a build-up of dust in the sensing chamber.