Apollo Discovery Ionisation Smoke Detector -58000-500APO

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Product Code
58000-500APO
SKU
OXO00165
Brand
APOLLO FIRE DETECTORS
In stock
Available
Condition
New

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the direct replacement is the Apollo Discovery Multisensor Detector -58000-700APO. Apollo Discovery Ionisation Smoke Detector -58000-500APO The Discovery Ionisation Smoke Detector uses a low activity radioactive foil to detect fires by irradiating the air in the smoke chambers and causing a current flow. If smoke enters the chamber, the current flow is reduced leading to an alarm. Brand Information Discovery is a range of high-specification, analogue addressable fire detectors and alarm devices. 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. In addition to the familiar smoke and heat detectors, the Discovery range features two multisensor detectors. One is an optical/heat multisensor which can be used to protect against many types of fire risk. The other is a carbon monoxide/heat multisensor which protects against both smouldering fires and those generating heat. Operating The Discovery Ionisation Detector uses the same outer case as the optical smoke detector and is distinguished by the red indicator LEDs. Inside the case is a printed circuit board which has the ionisation chamber mounted on one side and the signal processing and communications electronics on the other. The ionisation chamber consists of a reference chamber contained inside a smoke chamber. The outer smoke chamber has inlet apertures fitted with insect resistant mesh. At the junction between reference and smoke chambers, the sensing electrode converts variations in chamber current into voltage changes. When smoke particles enter the ionisation chamber, ions become attached to them with the result that the current flowing through the chamber decreases. This effect is greater in the smoke chamber than in the reference chamber, and the imbalance causes the sensing electrode to become more positive. The analogue voltage at the sensor electrode is converted to a digital format which is processed to provide an analogue value for transmission to the fire control panel when the device is polled. Communication Discovery, XP95 CoreProtocol compatible Maintenance Service Detectors should be maintained according to BS 5839-1 or other locally applicable code. Test equipment can be ordered from Apollo for testing smoke and heat detectors. Detectors should not be cleaned in the field except for careful removal of exterior dirt with a damp cloth. For cleaning and recalibration detectors should be returned to Apollo Fire Detectors or to the local distributor. EMC Directive 2014/30/EU The product complies with the essential requirements of the EMC Directive 2014/30/EU, provided that it is used as described. Construction products regulation 305/2011 The product complies with the essential requirements of the Construction Products Regulation 305/2011. Key Features Responds well to fast-burning, flaming fires Designed to operate in a variety of environments Resilient to dust Five response modes Remote test feature

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