Addressable Optical Smoke Detector with Isolator

Referencia: DOD-220A-I


The 200 series of analogue detectors' addresses are assigned through the PGD-200 programmer. The use of this tool saves double address mistakes, because the programmer automatically handles the address to be assigned.

Connections between the analogue system's detectors and modules must be made with a 2 x 1.5 mm2 twisted and shielded cable with a maximum length of 2 Km. To meet the EN-54 requirements, the wiring must be done in a closed loop. Precise short-circuit isolators must be installed to facilitate the location of possible faults. The loop accepts up to 250 elements.

The DOD-220A-I smoke detector is based in an optical dark chamber, which, thanks to its design, avoids unwanted air flows and facilitates the guidance of the smoke to the optical sensor. The detection principle is based on the Tyndall effect; the detector goes into alarm status due to the scattered light caused by the smoke particles being received by the optical sensor. The camera is protected to avoid the entrance of dirt and insects. This detector also incorporates compensation algorithms which avoid false alarms due to the dirtiness of the optical chamber, postponing equipment maintenance.

The 200 series detectors require the Z-200 base in order to connect. This connection base includes a blocking option which avoids it being tampered with. A tool is needed to remove the detector from the base.

Detectors in this series have non-polarity technology, facilitating system wiring and saving a huge amount of time in commissioning the system.

The protected area is 60 m2 and the maximum installation height is 12 meters.

The isolator  protects the system from short circuits in the loop, and its function is to disconnect the loop section between the 2 isolators that are nearest to the short circuit, allowing the rest of the installation to work without trouble. 


     Elegant design and low profile
     Dirtiness compensation
     Dirtiness and insect protection
     Two-wire connection without polarity
     Remote indicator port
     Compatible with DETNOV’s analogue fire control panel
     EN54-7 and EN54-17 approved
     Addresses from 1 to 250 in the loop


DOD-220A-I smoke detectors are suitable for those areas in a fire detection system in which a fire will cause more heat than smoke, or in which the daily activity temperature is usually very high.

Technical features

Loop features:
   Operating voltage: From 22 to 38VDC
   Quiescent current consumption: < 300 μA
   Alarm current consumption: < 11 mA

2 x 1.5 mm2 twisted and shielded cable to Z-200 base

Operating temperature: From -10ºC to +70ºC
Relative humidity: 95% without condensation
IP Index: IP20

Physical features
Head (height x Ø): 42 mm x 100 mm
Base (height x Ø): 5 mm x 100 mm
Material: ABS

EN54-5 y EN54-17
Certificate number: 0370-CPD-1859


Head (height x Ø): 42 mm x 100 mm
Base (height x Ø): 5 mm x 100 mm


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