Apollo Discovery Marine Multisensor Detector -58000-700MAR

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Product Code
58000-700MAR
SKU
OXO00284
Brand
APOLLO FIRE DETECTORS
In stock
Available
Condition
New

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Apollo Discovery Marine Multisensor Detector -58000-700MAR The Discovery Multisensor Detector construction is similar to that of the optical detector but uses a different lid and optical mouldings to accommodate the thermistor (heat sensor). The sectional view shows the arrangement of the optical chamber and the thermistor. The Discovery optical/heat 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. Key Features Ideal for a wide range of applications High immunity to false alarms Unaffected by wind or atmospheric pressure Remote test feature Rejection of transient signals

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