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During system tests or maintenance, it is important that any control equipment
is inhibited to avoid unwanted actuation or alarms.
The following factors should also be taken into consideration:
● Identify all high risk fire ignition sources. Ensure that enough detectors are
used to adequately cover the hazardous area.
● Locate and position the detector so that the fire hazard(s) are within both the
field of view and detection range of the device.
● For best performance, the detector should be mounted on a rigid surface in
a low vibration area.
● Extremely dense fog or blizzard conditions could eventually block the vision
of the detector.
● For indoor applications, if dense smoke is expected to accumulate at the
onset of a fire, mount the detector on a side wall (approximately 1 meter,
3 feet) down from the ceiling.
● The flame simulator can be used to verify correct detector positioning and
coverage.
● The detector has one sensitivity setting, this is factory set, and no changes
can be made to set-up.
● The detector carries out continuous internal hardware diagnostic testing to
ensure correct operation is relayed to the control system. It can also be set
to indicate dirty optics if this function is switched on. The detector should be
subjected to a background light level of at least 1 LUX in every 16 hour
period for 1 hour.
● The diagnostic test interval – the maximum time taken to execute all
diagnostics and act on a detected hardware fault (via 4-20 mA output) is
500 ms.
● The detector is not designed to annunciate diagnostic failures of signal
returns via external wiring. Control systems and fire panels generally have
fault monitoring for such an eventuality.
Instructions for use
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Dräger Flame 5000
2
Intended use
Dräger Flame 5000 is intended for use in an area which may contain potentially
explosive atmosphere to detect a flame or fire. Dräger Flame 5000 can be used
as a flame detector only, or video surveillance camera or as a combined unit. It
can be used to monitor and trigger the necessary control actions upon the
detection of fire or flame in a given environment.
2.1
Limitations on use
● The Dräger Flame 5000 is not approved for use in oxygen-enriched
atmospheres.
● As the Dräger Flame 5000 responds to visible flames, the
Dräger Flame 5000 should not be installed where its operational position
embraces open flames, e.g. directly pointed at the flare stacks.
● Some fuels burn with an invisible flame which the Dräger Flame 5000
cannot detect (e.g. smoke, dense fog and other airborne particulates). The
performance of the Dräger Flame 5000 may be affected.
● The Dräger Flame 5000 is insensitive to arc welding with respect to
spurious trips. However, close proximity arc welding (e.g. within 1 m)
generates too much brightness for the Dräger Flame 5000 to operate within
specification.
● If the device is required to comply with EN54-10 and VdS, the optical fault
must be disabled for applications where total darkness is experienced.
For further details or enquiries please contact Dräger.
2.2
Understanding the system
2.2.1
Principle of operation
The Dräger Flame 5000 can operate "stand alone" or can be integrated with an
approved control system. The detector is typically located throughout the
installation in order to achieve specific detection coverage and ensure that site
performance requirements are met. The detector is capable of providing live
colour video images and fire alarm/fault signalling to the control equipment. The
detector incorporates within a single unit an imaging device, digital signal
processing hardware, and firmware algorithms to process live video images and
Intended use
5
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