Differential heat detector
>> Differential heat detectors control the temperature increase inside 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 increases by over 5°C per
minute
>> 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° C
>> Two-colour LED: red alarm - green normal operation
>> Relative humidity max: 93%.
>> Operating temperature: 0 ÷ +50°C
>> Weight: 70 g
>> Dimensions: ø 90 x 40 (H) mm
>> Certified EN54 part 5 class A1R and part 17, No. 1293-CPD-0141
