Dräger Flame 5000, Техническое руководство

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Intended Use
Intended Use
Dräger Flame Detector 5000
For use in an area which may contain potentially explosive atmostphere. Used to monitor and trigger the necessary
control actions upon the detection of
fi re or fl ame in a given environment
Understanding the System
Principle of Operation
The Dräger Flame Detector 5000 can operate ‘stand alone’ or can be integrated with an approved control system.
Detectors are typically located throughout the installation in order to achieve speci
fi c detection coverage and ensure
that site performance requirements are met. All detectors are capable of providing live colour video images and fi re
alarm/fault signalling to the control equipment. Each detector incorporates within a single unit an imaging device,
digital signal processing hardware, and
fi rmware algorithms to process live video images and recognise fl ame
features. The detectors are capable of operating independently: external control equipment is not required for normal
functions. However, if an external controller is installed then certain additional features become available, such as
remote con
fi guration and fi rmware management. A remote operator can interrogate the detector and, during an alarm
situation, visually verify the hazard. Each detector can be individually con fi gured to operate seperately as a Flame
detector only, or Video Surveillance camera, or as a combined unit.
Detector Overview
The detector unit is comprised of two primary components, the detector enclosure, and the detector assembly. The
detector assembly should not be disassembled or tampered with in any way. The detector is shipped pre-assembled
and comes complete with all parts required for installation, including the bracket but excluding the client mounting
support, glands and cabling.
Optical Test
The camera implements an optical check for faulty or contaminated optics. The check measures the contrast in images
captured from the video sensor. If the contrast falls below a certain level, the detector will signal an optical fault. Optical
testing in the Visual Flame Detector can also be veri
fi ed manually using the Dräger FS-5000. Another manual method
is simply to view the video from the detector, if the video-out is connected.
Detector Sensitivity
The Dräger Flame Detector 5000’s response to a fi re depends on the fuel source and how it is released, fi re size and
distance, orientation to the detector and local ambient conditions. The typical parameters can be made available by
contacting Dräger Safety UK Ltd.
Explosion-Protection Approval
The explosion-protection approvals are valid fo use of the device in gas/vapour-air mixture of combustible gases and
vapours under atmospheric conditions. The explosion-protection approvals are not valid for use in oxygen eriched
atmostpheres. In the case of unauthorised opening of the enclosure, the explosion-protection approval is void.