OSD64 Optical Smoke Detector

OSD64 сonventional-addressable electrooptic smoke detector is intended for fire detection accompanied with low smoke concentration inside the monitored closed rooms of various buildings and structures as well as for a “Fire” signal transition to the R3500 receiving and control panel.
Power supply from ACL (28 - 36 V)
Detector sensitivity 0,05 to 0,20 dB/m
The detector remains functional when affected by air flow rate  
background luminance of artificial or natural light sources up to 10 m/s up to 12000 lx
LED flashing frequency in stand-by / "Fire" mode 0,2 Hz/2 Hz
Detector overall dimensions of the with base, no more than Ø93×44 mm
Detector weight, including base, no more than 120 g
Operating temperature range from -25 to +55°С spec.des. from -40 to +70°С
Average service life, at least 10 years
The detector performs the following functions:
  • smoke concentration measurement;
  • measuring results processing using special algorithms and "Fire" signal transmission to receiving and control panel;
  • detector operation mode indication;
  • automatic dust compensation of  smoke chamber to exclude false alarms;
  • functioning test with a button or OT-1 special optical tester.

Power supply and data exchange of the detector is performed via a two-wire ACL. The detector does not respond to humidity changes and to the presence of flame and natural or artificial light.

The detachable connection between the sensor and the base provides easy installation, mounting, and maintenance of the detector.

Circular contacts allow easy mounting of the detector without orientation with respect to the socket.

To facilitate ACL shielded cables installation, cable mounting plate is provided on the base (option).

It can be mounted on dropped ceiling using a special socket combined with mounting rings.


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