optical smoke detector
>> Smoke detectors work according to the light scattering principle caused by smoke particles
present in the air. The smoke detector features an automatic ga in control function; a
microcontroller calculates reading compensation to keep constant sensitivity and corrects any
level increase due to dust depositing into the analysis cell. S moke detectors should be installed
in places protected against draughts which may divert the flow o f combustion particles and in
places where the common activities performed do not cause the c ombustion of gases
>> Supply voltage: 20 Vdc (modulated voltage from -15% to +10%)
>> Average absorption at rest: 250 uA @ 20 Vdc
>> Alarm absorption: 2 mA @ 20 Vdc
>> Two-colour LED: red alarm - green normal operation
>> Max relative humidity: 93%
>> Operating temperature: 0 ÷ +50°C
>> Weight: 70 g
>> Dimensions: ø 90 x 31 (H) mm
>> Certified EN54 part 7 and part 17, No. 1293-CPD-0138
