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Apollo Cat O. XP95 Sounder VAD Base with Isolator 45681-705APO

GBP 72.02
1

Apollo 55000-739APO XP95 Open-Area VAD Cat. C - White Body Red Flash C-3-8

Apollo Cat O. XP95 VAD Base with Isolator 45681-709APO

Apollo Discovery Cat O. Discovery Sounder VAD Base with Isolator 45681-700APO

Apollo Discovery Cat O. Discovery Sounder VAD Base with Isolator 45681-700APO

Apollo Discovery Cat O. Discovery Sounder VAD Base with Isolator 45681-700APOThe Discovery Sounder VAD Base makes full use of the Discovery protocol. For ease of commissioning a Magnetic Wand can be used to test and adjust each sounder VAD locally.Key FeaturesEN54-23 certifiedFlash rate of 0.5HzIt is possible to set individual volume of the sounder from the panel15 pairs of tones including IMO code 1A General Emergency Alarm and IMO Code 2 All ClearBuilt in isolatorBrand InformationDiscovery 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 opticalheat multisensor which can be used to protect against many types of fire risk. The other is a carbon monoxideheat multisensor which protects against both smouldering fires and those generating heat.OperationThe Discovery Multisensor construction is similar to that of the optical detector but uses a different lid and optical mouldings to accommodate the thermistor heat sensor. The Discovery OpticalHeat Multisensor Detector contains an optical smoke sensor 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 five modes provide response behaviour which incorporates pure heat detection pure smoke detection and a combination of both. The multisensor is therefore useful over the widest range of applications. The signals from the optical smoke sensing element and the temperature sensor are independent and represent the smoke level and the air temperature respectively in the vicinity of the detector.The detectors micro-controller processes the two signals according to the mode selected. When the detector is operating as a multisensor the temperature signal processing extracts only rate-of-rise information for combination with the optical signal. In these modes the detector will not respond to a slow temperature increase even if the temperature reaches a high level. A large sudden change in temperature can however cause an alarm without the presence of smoke if sustained for 20 seconds.

GBP 78.12
1

Apollo Intelligent Open Area Red Sounder Sonos - 55000-001APO

Apollo Intelligent Red Open-Area Sounder Beacon - 55000-005APO

Apollo Discovery Marine Optical Smoke Detector 58000-600MAR

Apollo Discovery Marine Optical Smoke Detector 58000-600MAR

Apollo Discovery Marine Optical Smoke Detector 58000-600MARThe Discovery Marine Optical Smoke Detector works using the light scatter principle and is ideal for applications where slow-burning or smouldering fires are likely.Operating PrinciplesThe Discovery Marine Optical Smoke Detector has a white moulded polycarbonate case with wind-resistant smoke inlets.The indicator LEDs are colourless when the detector is in quiescent state and red in alarm. Within the case is a printed circuit board which on one side has the light-proof chamber with integral gauze surrounding the optical measuring system and on the other the signal processing and communications electronics.An infra-red light emitting diode within its collimator is arranged at an obtuse angle to the photo-diode. The photo-diode has an integral daylight-blocking filter.The IR LED emits a burst of collimated light every second.In clear air the photo-diode receives no light directly from the IR LED because of the angular arrangement and the chamber baffles. When smoke enters the chamber it scatters light from the emitter IR LED onto the photo-diode in an amount related to the smoke characteristics and density. The photo-diode signal is processed to provide an analogue value for transmission when the detector is interrogated.Maintenance ServiceDetectors should be maintained according to BS 5839-1 or other locally applicable code. Test Equipment can be ordered from us which can test smoke and heat detectors. Detectors should not be cleaned in the field except for careful removal of exterior dirt with a damp cloth.Key FeaturesResponds well to slow-burning smouldering firesSuitable for bedrooms and escape routesUnaffected by wind or atmospheric pressureRemote test featureRejection of transient signals

GBP 59.16
1

Apollo Discovery Sounder Beacon Base with Isolator 45681-393APO

Apollo Series 65 Conventional Duct Smoke Detector - 53546-021APO

Apollo Orbis Conventional Duct Smoke Detector - 53546-023APO

Apollo 45681-330APO Intelligent Sounder Visual Indicator Base with Isolator

Apollo Discovery Manual Call Point with Isolator 58100-908APO

Apollo Discovery Marine Manual Call Point 58100-970MAR

Apollo Intelligent Open-Area Clear Beacon - 55000-010APO

Apollo Discovery Red Open-Area Sounder Beacon - 58000-005APO

Apollo XP95 Sounder Beacon Base - 45681-331APO

Apollo SA5500-351APO Open-Area Sounder VID Red Body Red Flash

Apollo Discovery CO Heat Multisensor 58000-305APO

Apollo Discovery CO Heat Multisensor 58000-305APO

Apollo Discovery CO Heat Multisensor 58000-305APOThe Discovery COHeat Multisensor Detector is good at detecting deep-seated smouldering fires which give off a lot of CO as well as flaming fires. They are ideal for use in hotel bedrooms where steam may bepresent dusty environments or even where simulated smoke may bepresent.The Discovery COHeat 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 COHeat 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 58C.Brand InformationDiscovery 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 opticalheat multisensor which can be used to protect against many types of fire risk. The other is a carbon monoxideheat multisensor which protects against both smouldering fires and those generating heat.Operating PrinciplesDiscovery 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.Maintenance ServiceDetectors should be maintained according to BS 5839- or other locally applicable code. Test equipment can be ordered from us which can test smoke and heat detectors.Key Features Responds to smouldering and flaming firesLess susceptible to false alarms caused by steam and dustFive response modesRemote test feature

GBP 77.17
1

Apollo SA5501-350APO Open-Area Sounder VID White Body White Flash

Apollo SA5501-351APO Open-Area Sounder VID White Body Red Flash

Apollo SA5500-350APO Open-Area Sounder VID Red Body White Flash

Apollo Discovery Clear Open-Area Sounder Beacon - 58000-007APO

Apollo XP95 Sounder VAD Base DIN-Tone with Isolator 45681-707APO

Apollo XP95 Intelligent Duct Smoke Detector - 53546-022APO