Apollo Intelligent IR² Flame Detector (55000-280APO)

The Apollo Intelligent IR² Flame Detector is designed for use in areas where flaming fires may be expected. The detector has two sensors which respond to different IR wavelengths to discriminate between flames and spurious sources of radiation. Applications include aircraft hangars, coal handling and paper manufacturing plants and woodworking environments.

Operation

The IR² Flame Detector is sensitive to low-frequency, flickering infra-red radiation emitted by flames during combustion. Since it responds to flickering radiation the IR² Flame Detector can operate even if the lens is contaminated by a layer of oil, dust, water-vapour or ice.

The IR² Flame Detector is set to respond to low-frequency radiation at 1 to 15Hz (1 to 2.7μm) in order to detect all flickering flames, including those invisible to the naked eye, eg, those emitted by hydrogen fires.

The IR² Flame Detector has two IR sensors that respond to different IR wavelengths in order to discriminate between flames and spurious sources of radiation. False alarms due to such factors as flickering lighting are avoided by a combination of filters and signal processing techniques.

Electrical Description

The Intelligent IR² Flame Detector is loop powered and needs no external supply. A remote LED alarm indicator may be connected to the flame detector.

Backward Compatibility

The Intelligent IR² Flame Detector operates only with control equipment using the Apollo XP95 or Discovery digital protocol (or any development of it).

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