optical smoke sensors

Optical smoke sensors are used for detecting visible smoke that appears during the majority of fires. It allows to detect smoke in its initial stage, where the material has just started to burn, which usually comes long before the outburst of open flame and the noticeable increase in temperature. The sensors feature resistance to wind, pressure changes and water vapour condensation. They have large sensitivity to visible smoke.

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PARAMETER VALUE
operating voltage 24V (9 ÷ 28)
max. monitoring current 60 [μA]
alarm current 30< [mA]
operating temperature range -10 ÷ 50 [°C]
max. relative humidity 93 [%]
dimensions of sensor, incl. socket Ø103 x 55 [mm]
weight, incl. socket ~0,155 [kg]
color white

 


Optical sensor comprises of a set of two LEDs.

  • infrared LED – emits a light beam. 
  • receiving LED is placed in a labyrinth tunnel. Upon penetration of smokethe sensor starts transition into alarm state