Optical heat detector
>> Dual-technology detectors (smoke-heat) work according to the light scattering principle caused
by smoke particles present in the air (TYNDALL effect) and on temperature monitoring within
the area where they are installed. A micro controller analyses and compares the signal received
from a precision heat detector of the NTC type, and activates the alarm if tempe rature goes
over 58°C. The smoke detector features an automatic gain control function; a microcontroller
calculates reading compensation to keep constant sensitivity
>> Supply voltage: 20 Vdc (modulated voltage from -15% to + 10%)
>> Average absorption at rest: 250 uA @ 20 Vdc
>> Alarm absorption: 2 mA @ 20 Vdc
>> Static alarm threshold: 58°
>> Two-colour LED: red alarm - green normal operation
>> Max relative humidity: 93%
>> Operating temperature: 0 ÷ +50°C
>> Weight: 70 g
>> Dimensions: ø 90 x 40 (H) mm
>> Certified EN54 part 5 class A1, part 7 and part 17, No. 1293-CPD-0139
