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An ASD consists of one or two independent sampling tubes with sampling apertures, and with a highly sensitive smoke sensor in each case.

Airflow monitoring ensures that the sampling tubes are constantly checked for pipe breakage and the sampling apertures monitored for soiling. A high-performance fan sucks in air from the room or facility being monitored through the sampling tube into the evaluation unit.

There the air is continuously evaluated by the smoke sensors. The display and control panel of the evaluation unit indicates the smoke concentration of the sampled air, as well as other alarm, fault and status messages.

Any increase in smoke concentration levels is detected very early on. Pre-signals and one or two main alarms can be programmed, and signalled via potential-free relay contacts or directly to the SecuriLine loop.

Universal aspirating smoke detector with one or two sampling pipes for large monitoring areas.

Aspirating System Design
Smoke sensorHigh-sensitivity smoke sensor with high-power LED, LVSC smoke chamber and
patented lint filter
Monitoring area5760m2
Direct integration in SecuriFire fire detection system
Yes, with XLM-35 module (alarm, pre-signal, faults, day/night sensitivity switching, reset etc.)
Smoke level indicatorOptional (version -3 and -4)
Programming (PC tool)ASD Config
Calculation of sampling pipesASD PipeFlow
ApplicationsHigh-bay and deep-freeze warehouses, large data centers, historic buildings, large/high halls, ect.
Aspirating System Design
Supply voltage rangeEn 54 : 10.5 – 30 VDC
FM/UL : 12.4 – 27 VDC
Power consumption Typical for 24 VDC260-290 mA
Sampling tubes/smoke sensors1 or 2
Alarm sensitivityAlarm : 0.02 –10%/m (0.00087–0.457 dB/m)
Pre-signal:0.002%/m (0.0000869 dB/m)
Alarm levels 5 (3 pre-signals, alarm, alarm 2) adjustable pre-signals 10 – 90%
Autolearning, day/night switchingConfigurable
Connection to SecuriFire FACPFunctions: Alarm, alarm 2, pre-signal 1– 3, fault, reset
Optional module :XLM 35 Config over Line, analogue values
Optional modulesQuantity:4
Types: 2/1 RIM 35, SIM 35,SLM/XLM 35, MCM 35
Number of sampling aperturesEN 54-20 Class A:2 x 18
EN 54-20 Class B:2 x 56
EN 54-20 Class C:2 x 120
NFPA 72 (UL/FM):2 x 120
Max Monitoring area5760 m2
System limits as per EN 54-20 Class CMax. quantity Sampling apertures: 2x120
Max. length to last sampling point : 2x110m
Max. overall length for all sampling tubes: 300m
System limits without conformity to standardsMax. overall length for all sampling tubes: 2x400m
ConfigurationClose operation: EasyConfig
PC tool: ASD Config
Calculation of sampling tubesASD PipeFlow: • Full support for all product versions

• Asymmetrical configurations

• Genuine simulation, no table values
Fan/sampling systemSuction pressure:> 420 Pa
Service life (MTTF):> 65,000 h (at 40 °C)
Performance levels:5
Suction noise: < 32 dB (A)
Soundproof housing:< 20 dB (A)
Airflow monitoring1 air flow sensor
HousingEN 60529 prot. category : IP 54
Dimensions (W × H × D) : 265 × 348 × 148 mm
Cover, grey:RAL 280 70 05
Base, anthracite violet:RAL 300 20 05
Material: ABS blend, UL 94-V0
Weight (approx.):3850 g
Cable entries:4 × M20, 1 × M25

PackagingCardboard (W × H × D) :
415 × 285 × 175 mm
Operating temperature/humidity–30 – +60°C/95% RH (amb. air max. +40 °C)
Event memory/analogue valuesOn board:430 events
With SD Card: up to 1 year (with MCM 35)

ABS Pipes and fittings

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Pipe flow calculations

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System accessories

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