DETNOV DOD-220A optical smoke detector

 

Addressable optical smoke detector, with dirt compensation and algorithm verification. Led status indicator anti-theft system and output for remote pilot indicator PAD-10 or buzzer BUD-200. White color. Non polarity installation. Requires connection base Z-200 or Z-200-H. CPR certificate EN54-7. Dimensions: 100 x 40 mm.

 

The new 200 series of addressable detectors has been developed using the most innovative technical advances. Its completely new design makes the 200 series one of the most elegant on the market, ideal for facilities in which the balance between functionality and aesthetics is necessary.

DETNOV's 200 range of analogue detectors is made up of 4 detector types, all of them available with and without isolator. They are a 58oC rise-of-rate detector, a 78oC heat detector, an optical detector and an optical- heat detector. All of them are compatible with DETNOV's CAD-150 family of analogue control panels.

The 200 series of analogue detectors' addresses are assigned through the PGD-200 programmer (Isolator version support auto adressing). 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 (changing the seccion of the cable, number of element and using calculation software loop can reach up to 3500m). 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 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.

 

Features

o Elegant design and low profile 

o Remote indicator port

o Dirtiness compensation 

o Compatible with DETNOV’s analogue fire control panel EN54-7 and EN54-17 approved

o Dirtiness and insect protection 

o Addresses from 1 to 250 in the loop

o Two-wire connection without polarity 

o DTD-220A-I with isolator

 

DOD-220A 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.