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Apollo SA5100-710APO Soteria Multi-Sensor Detector Dual OpticalHeat

Apollo SA5100-810APO Soteria Tri-Sensor Detector Dual OpticalHeatCO

Apollo Dual Switch Manual Call Point SA5900-011APO

Apollo Intelligent Base Mounted UV Dual IR Flame Detector 55000-023APO

Apollo XP95 DIN-Rail Dual Isolator - 55000-802APO

Apollo Exd Conventional UV Dual IR Flame Detector 55000-065APO

Apollo Marine DIN-Rail Dual Isolator 55000-770MAR

Apollo Conventional Dual IR Flame Detector 55000-060APO

Apollo Intelligent Dual IR Flame Detector 55000-280APO

Apollo Conventional UV Dual IR Flame Detector 55000-064APO

Apollo Exd Conventional Dual IR Flame Detector 55000-061APO

Apollo XPander Dual Input Output Channel Unit - XPA-IN-14012-APO

Apollo RW1000-760APO REACH Multi-Sensor Detector OpticalHeat Black Body

Apollo RW1000-600APO Reach Optical Smoke Detector

Apollo RW1000-660APO REACH Optical Smoke Detector Black Body

Apollo Series 65 CS Heat Detector with Flashing LED 55000-136APO

Apollo Series 65 A1R Heat Detector with Flashing LED 55000-121APO

Apollo MiniDisc Remote Indicator 53832-070APO

Apollo Marine Intelligent Base Mounted UVIR2 Flame Detector 55000-028MAR

Apollo Marine Intelligent Base Mounted UVIR2 Flame Detector 55000-028MAR

Apollo Marine Intelligent Base Mounted UVIR2 Flame Detector 55000-028MARThe Marine Intelligent Base Mounted UV Dual IR Flame Detector is designed to protect open indoor areas where open flaming fires may be expected. The detector has a UV and dual IR sensors responding to different wavelengths in order to discriminate between flames and spurious sources of radiation. They are used in aircraft hangers generator rooms diesel and gas turbines and paint works.OperationThe detector is sensitive to ultraviolet and low-frequency flickering infra-red radiation emitted by flames during combustion. Since it requires both UV and IR radiation the detector can operate in applications where a basic single UV or single IR detector would be inappropriate. The detector is set to respond to ultraviolet 185 - 260nm and low-frequency flickering infra-red 0.75 - 2.7ym radiation at 1 - 15Hz in order to detect all flickering flames including those invisible to the naked eye e.g. those emitted by hydrogen fires.The detector has one UV and two IR sensors responding to different wavelengths in order to discriminate between flames and spurious sources of radiation. False alarms due to electrical discharges from lightning or arc welding and flickering sunlight are minimised by combining the UVIR signals.Key FeaturesResponds to stationary flames with no flickerSensitive to low-frequency flickering IR radiation emitted by flames during combustion.Compact flame detector which fits into Discovery Marine basesLoop-poweredFalse alarms due to factors such as flickering sunlight are avoided by a combination of filters and signal processing techniques

GBP 1177.80
1

Apollo Series 65 CR Heat Detector with Flashing LED 55000-131APO

Apollo XPander Remote Indicator Module - XPA-IN-14102-APO

Apollo Series 65 BR Heat Detector with Flashing LED - 55000-126APO

Apollo Series 65 BR Heat Detector - 55000-127APO

Apollo Series 65 BR Heat Detector - 55000-127APO

Apollo Series 65 BR Heat Detector - 55000-127APOThe Series 65 Heat Detector monitors temperature by using a dual thermistor network which provides a voltage output proportional to the external air temperature. There are 12 heat detectors in the Series 65 range designed to suit a wide variety of operating conditions. Apollo Series 65 smoke heat detector range are a direct replacement for the earlier Series 60 devices. Series 65 detectors have a wide voltage range 9-33 volt DC and can be integrated on to security systems when used with the 12 volt relay base 45681-508.The heat detector operates by using a matched pair of thermistors to sense heat. One thermistor is exposed to the ambient temperature the other is sealed. In normal conditions the two thermistors register similar temperatures but on the development of a fire the temperature recorded by the exposed thermistor will increase rapidly resulting in an imbalance of the thermistors and causing the detector to change to the alarm state.A1R BR and CR are Rate of Rise detectors designed to detect a fire as the temperature increases but they also have a fixed upper limit at which the detector will go into alarm if the rate of temperature increase has been too slow to trigger the detector earlier.Key Features Can be used for applications where smoke detectors are unsuitableIdeal for environments that are dirty or smoky under natural conditionsWide operating voltageFlashing LED and magnet operated test switch option

GBP 14.72
1

Apollo Series 65 CS Heat Detector - 55000-137APO

Apollo Series 65 CS Heat Detector - 55000-137APO

Apollo Series 65 CS Heat Detector - 55000-137APOThe Series 65 Heat Detector monitors temperature by using a dual thermistor network which provides a voltage output proportional to the external air temperature. There are 12 heat detectors in the Series 65 range designed to suit a wide variety of operating conditions. Apollo Series 65 smoke heat detector range are a direct replacement for the earlier Series 60 devices. Series 65 detectors have a wide voltage range 9-33 volt DC and can be integrated on to security systems when used with the 12 volt relay base 45681-508.The heat detector operates by using a matched pair of thermistors to sense heat. One thermistor is exposed to the ambient temperature the other is sealed. In normal conditions the two thermistors register similar temperatures but on the development of a fire the temperature recorded by the exposed thermistor will increase rapidly resulting in an imbalance of the thermistors and causing the detector to change to the alarm state.A1R BR and CR are Rate of Rise detectors designed to detect a fire as the temperature increases but they also have a fixed upper limit at which the detector will go into alarm if the rate of temperature increase has been too slow to trigger the detector earlier.Key Features Can be used for applications where smoke detectors are unsuitableIdeal for environments that are dirty or smoky under natural conditionsWide operating voltageFlashing LED and magnet operated test switch option

GBP 14.72
1