Apollo Discovery CO-Heat Multisensor Detector - 58000-305
The Discovery CO/Heat Multisensor Detector contains a CO detection cell and a thermistor temperature sensor whose outputs are combined to give the final analogue value. The way in which the signals from the two sensors are combined depends on the response mode selected. The CO/Heat Multisensor detects the presence of carbon monoxide or heat or a combination of both. The Multisensor construction is similar to that of a CO detector but uses a different lid in order to expose the thermistor to the surrounding air. The signals from the CO sensing cell and the thermistor are independent and represent the amount of CO or the temperature present in the vicinity of the detector. When the detector is used in heat only mode (Mode 5) it operates as an A1R rate-of-rise heat detector with a static threshold of 58°C.
In stock
SKU
58000-305
£38.84
£46.61
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.
Operation
Discovery detectors are designed to be operated with purpose-designed control and indicating equipment that makes full use of their features. Discovery can, however, be connected to any fire control panel which can operate existing ranges of Apollo analogue addressable detectors with the previously noted rule, that the control and indicating equipment must not have a drift algorithm operating on Discovery devices. Contact the fire control panel manufacturer for guidance.
Device Addressing
Mode 1 has very high sensitivity to carbon monoxide combined with moderate sensitivity to heat. This gives a high overall sensitivity to both smouldering and flaming fires. Mode 2 is set to report the presence of carbon monoxide only. Mode 3 has moderate sensitivity to carbon monoxide combined with moderate sensitivity to heat and is used for general applications. Mode 4 has lower than normal carbon monoxide sensitivity combined with moderate heat sensitivity making it suitable to areas where a certain amount of carbon monoxide might be considered normal. Mode 5 has no response at all to carbon monoxide and acts as a rate-of-rise heat detector. Notes: 1. If the Multisensor is to be used in mode 5 heat detector spacing & coverage should be applied. Observe the recommendations of BS 5839-1 or other applicable code. 2. The notes on carbon monoxide detectors on pages 16-17, particularly concerning application, limitations and precautions, should be read carefully. 3. In situ testing of the multisensor detector should be carried out as for CO detectors in response mode 2 and for heat detectors in response mode 5. Both CO and heat sensors must be tested in modes 1, 3 and 4. 4. The CO/Heat Multisensor Detector cannot be tested with Discovery Test Set.
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