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Properties
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Extended optical detection thanks to dual wavelengths (blue and infrared): The
aspirating smoke detectors FDA241 and FDA221 use dual-wavelength technology to
trigger an alarm at the earliest possible moment. They are designed to protect small and
medium-sized business-critical environments for monitoring areas of up to 800 m
(FDA241) or 500 m
system via their aspirating holes. The air is fed into a uniquely designed detection
chamber, in which tiny smoke particles are detected by scattered light.
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Lower mounting and service costs due to its easy accessibility design for very short
installation and/or dismantling proceedings.
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Configuration by using the USB interface to upload the device configuration enables very
short start-up sequences. All detector configurations, downloading event-log,
maintenance work, and alarm and fault management processes can be carried out by
USB interface or at a central location – the fire control panel. This ensures better control
while also reducing the costs of the overall solution.
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'Out-of-the-box' mounting and commissioning: Installation is simple thanks to combined
functions for normalizing smoke values and airflow, as well as appropriate presettings for
alarm and fault thresholds.
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ASD filter box FDAZ292 available as an accessory: Dust and other dirt is filtered out of
the aspirated air and does not get into the aspirating smoke detector. The filters in the
ASD filter box are easy to replace.
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Via relay outputs, fault and alarm conditions can be transmitted to the available control
panel (stand-alone application).
Use
Aspirating smoke detectors are used for early detection of smoke-generating fires. They are
especially suited to applications in which point detectors are pushed to their limits, cannot be
used or can only be used with restrictions.
The aspirating smoke detector continually takes air from the monitored area using a
connected pipe system with defined aspirating holes. The air is supplied to the detection
chamber and is analyzed for smoke particles using the detector installed there. The
sensitivity of the detector can be adjusted.
The position and size of the aspirating holes are calculated with the 'FXS2056 ASD Asyst
Tool V2' software. The calculation ensures that the air passes from the aspirating hole to the
detector in the time specified and with the required calculated sensitivity.
The 'FXS2056 ASD Asyst Tool V2' software is replacing the 'FXS2055 ASD Asyst Tool'
software.
Examples of application
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Rolling stock (e.g. railway carriages, highspeed trains, subways, trams, etc.)
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Cavities such as false ceilings or false floors
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Clean rooms
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Rooms the height of which is greater than that permitted for point detectors
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Rooms with electromagnetic fields which influence the function of point detectors
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Large rooms up to 800 m²
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Separate monitoring of control cabinets and electronics cabinets
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Data centers
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Telecommunication centers
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Mounting lines
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Cable tunnels
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Conveyor belts
2
Smart Infrastructure
Fire Safety
(FDA221). The detectors continually suck in air through a pipe
2
2
fsac_ds_asd_fda2x1_v1_en.doc
2020-03
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