• Cirrus-HYBRID
  • Cirrus HYBRID Aspirating Fire & Smoke Detectors

Cirrus HYBRID Aspirating Fire & Smoke Detectors

Part No. Various
  • The first and only ‘Combined Fire & Smoke’ Aspirating Detector
  • Unique ‘Cloud Chamber Detection’ (CCD) – primary detection technology
  • Optical ‘Scatter Chamber Detectors’ (SCD) – secondary detection technology
  • Independent and integrated intelligent alarm signal decision making
  • The largest sensitivity range aspirating detector Zero% obs/m to 20% obs/m
  • HYBRID ‘Smart Signal‘ to verify alarms and discriminate false alarms
  • 7” full colour multi-function touch screen LCD display
  • Live camera stream from up to 6 IP colour cameras
  • Fault finding video feature

Product Details

Cirrus HYBRID is the only aspirating detector available to identify the optically invisible fire particulate by utilising the unique ‘Cloud Chamber Detection’ (CCD) technology.

Combined Cloud Chamber ‘Fire’ and optical ‘Smoke’ detection

History tells us that in reality there are really only two types of aspirating detector technology. These technologies are ‘Cloud Chamber’ aspirating detection identifying optically invisible fire particulate, and laser or LED ‘Optical’ aspirating detection identifying small amounts of visible smoke.

Depending on the materials burning, particularly in the many modern applications for aspirating detection systems, some fires burn with only a small amount of visible smoke, whereas others burn with greater volumes of visible smoke.

Cirrus HYBRID detects these wide-ranging ‘smokier’ fire types too. Early Warning Smoke Detection (EWSD) is provided using high performance optical ‘Scatter Chamber Detectors’ (SCD) that identify both small and larger smoke particles entering the detector.

By utilising the two most effective methods of aspirating system technologies (CCD and EWSD) in a single detector the Cirrus HYBRID detector provides a device able to detect fire and smoke over the largest range of fire types.

However, what makes this totally new and genuinely unique concept in aspirating fire and smoke detection technology so different is that these two technologies work both independently from each other, and through the use of complex algorithms also interact together, to provide true intelligent alarm decision making. The result of this synergy of technologies is a device that can verify true alarm conditions across the largest range of fire types. A further and equally as important result of this synergy of technologies, is the discrimination of unwanted or false alarms which have historically and still continue to plague so many optical only aspirating detectors.


Cirrus HYBRID (Scanner)Cirrus HYBRID (Non-Scanner)
Supply Voltage20-28 VDC
Current Consumption @ 24VDC, 100% Fan 4 pipe840mA quiescent | 940mA alarm685mA quiescent | 785mA alarm
Operating Temperature Range
Temperature Range Tested to EN54-20
0˚C to 45˚C (32˚F to 113˚F)
0˚C to 55˚C (32˚F to 131˚F)
Application Sampled Air Temperature-20˚C to 60˚C (-4˚F to 140˚F)
Humidity10 – 93%RH (no icing / non-condensing)
IP RatingIP30
Cable Access10 x 20mm knock outs
Cable TerminationScrew terminal blocks (0.2 – 2.5mm2, 30 – 12AWG)
Pipe Outer Diameter25mm, push to fit tapered inlet
Alarm IndicationsPre-alarm, Fire 1, Fire 2, Fire 3
Other IndicationsSupply Healthy, General Fault,
7-inch LCD colour touch Screen Display
Fault ContactRated at 30VDC 1A maximum [Normally closed]
Programmable Output Contacts5 contacts rated 30VDC 1A [Volt-free change over contacts with 28 programming options]
Programmable Inputs3 monitored inputs that may be configured for Isolate, Reset, Silence, Day/Night, Battery Fault and Mains Fault
Camera6 Protec specified IP cameras
Event Log / Data Retention24,000 events stored on FIFO basis (alarms, actions, faults and data points) (Approx 30 day historical graph data)
Variable Sensitivity Settings7 day programmable settings with 2 time zones per day. Day-time/Night-time setting
Sensitivity RangeIncipient Detection Range:
0.002micron to 1.0micron in diameter.
Concentrations of 10,000 particles per cc to 10 million particles per cc.Optical Detection Range:
0.01%obs/m to 20%obs/m
Threshold Settings recommended maximumClass A – 11 holes per pipe @ 130CFS
Class B – 22 holes per pipe @ 400CFS
Class C – 44 holes per pipe @ 600CFS
Class A – 34 holes per detector @ 130CFS
Class B – 44 holes per detector @ 400CFS
Class C – 44 holes per detector @ 600CFS
Threshold Settings Complaint maximum EN 54-20Class A – 11 holes per pipe @ 549CFS
Class B – 22 holes per pipe @ 599CFS
Class C – 44 holes per pipe @ 1000CFS
Class A – 34 holes per detector @ 130CFS
Class B – 44 holes per detector @ 422CFS
Class C – 44 holes per detector @ 1000CFS
Sampling Pipe NetworkNumber of inlet ports: Up to four
Pipe Network Design Tool: ProFlow
Maximum pipe length: Specific to individual design. To be compliant to local design codes, and verified by ProFlow.
Airflow Monitoring‘High Airflow’ and ‘Low Airflow’ fault monitoring
Standards / ApprovalsEN 54-17, EN 54-20
AS 7240-20
Weight3.5kg (7.7lbs)
Dimensions (mm)380(H) x 250(W) x 137(D)

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