Aspirating Smoke Detector

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Design and function

The ASD 535 consists of one or two independent

sampling lines, each with a highly sensitive smoke

sensor. Air flow monitoring ensures that the

sampling lines are constantly checked for pipe

breakage and the sampling holes monitored for

pollution. A high-performance fan sucks the air from

the room or facility being monitored through the

sampling line to the evaluating processor unit.

There the air is continuously evaluated by the

smoke sensors.


The display and control panel of the evaluating

processor unit indicate the smoke concentration of

the sampled air and other alarm, fault and status

messages. Any increase in the smoke concentration

is detected very early.


Three pre-signals and two main alarms can be

programmed for each and signalled via potential free



There are four expansion slots for accommodating

modular relay interfaces and others (if required).



The ASD 535 is ideal for property and space

surveillance thanks to its excellent response

behaviour. Typical applications include:

• Space surveillance:

• High-rack warehouses and distribution centres

• Archive rooms

• Intermediate ceilings and raised floors

• Large halls

• Museums, galleries, theatres, cinemas

• Cultural artefact collections, historical buildings

• Airports

• Informatics and computer centres

• Telecommunication centres

• Laboratory and research centres

• Electronic measuring rooms

• Transformer rooms

• Clean rooms

• Refrigerated warehouse

Invisible applications:

• Protection of cultural assets

• Prison Cells

• Property surveillance:

• Telecommunication facilities

• High and low voltage distribution cabinets

• Display cases

• IT installations

• CNC control systems

• The latest generation of universal aspirating smoke detectors

• 1 or 2 sampling lines with separate air flow monitoring

• Australian standards approved system.

• VdS certified calculation software: ASD PipeFlow enables efficient, asymmetrical pipe layout

• Monitors smoke obscuration levels of < 0.001%/m

• Insensitive to pollutants thanks to particle suppression (patent pending)

• Auto-learning function

• High performance fan (> 400 Pa vacuum)

• Low noise level, compliant with ISO 11690-1

• 5 alarm levels (3 pre-alarms and 2 alarms)

• Refined smoke detection thanks to high dynamic (HD) sensors



Control Indicating Equipment (CIE) integration

ASD 535 allows for easy integration to CIE's with

easy to access and connect relays.

The display and operation of, e. g. the day/night

sensitivity controls are easy using the fire detection

control unit.


Highly sensitive smoke sensor

The SSD 535 smoke sensor was specially developed

for the ASD 535 and is the result of extensive

research. Use of a high power LED combined with a

large volume smoke chamber (LVSC) results in

unparalleled, adjustable sensitivity with low

aerodynamic resistance and supreme resistance to

pollution. This ensures a long service life and minimal

false alarm.


Easy to plan and commission

For straightforward, standard installations the

SecuriRAS ASD 535 with EasyConfig offers fast,

foolproof, computer-free commissioning.

More complex installations are calculated using the

approved ASD PipeFlow calculation software and

configured with ASD Config, the commissioning

and maintenance software. This allows for better value asymmetrical pipe layouts.


Range of accessories

An extensive range of accessories with VdS

approval are available (freezer sampling

points, filters, water separators, explosion

protection, etc.).



More Information - Downloads



Product information Sheet


Australian Standards Certificate


VDS Certification


UL Certification


IQNet Certificate


SQS Certificate





Applications Brochures - Downloads


Cold Stores


Data Centres


Elevator Shafts


High Storage


Open Spaces


Power Generation


Securiton ASD 535 Aspirating Smoke Detector

Environments for Smoke Detection
Securiton ASD 535 Aspirating Smoke Detector

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