AHR-871 Mechanical Rate of Rise Heat Detector

  • AHR-871

Characteristics

  • Heat-sensing diaphragm can operate for unlimited number of times and is not affected by room temperature. The conducting parts use gold coating to avoid oxidation.
  • Uses glass tube to avoid humidity and stabilize the ventilation function. Glass tube also can expel non-fire heat to avoid false alarms.
  • The unit is completely sealed; its function is not affected by humidity, dust or insects.
  • This detector has passed strict quality control through automatic repetitive testing and been calibrated automatically under stable temperature and humidity conditions. Thus, quality and reliability are consistent from the first detector produced to millionth.     

Specification

AHR-871 Mechanical Rate of Rise Heat Detector

ModelAHR-871
Type2 wire3 wire4 wire
Alarm ContactN/A  N/A0.8A @30V DC, 0.4A @125V AC
Voltage Range12 ~ 30V DC
Alarm Current @24V DC 470Ω40mA40mA35mA
Alarm TemperatureComply to EN54
Ambient Temperature-10℃ ~ +55℃
MaterialFire-proof plastic
Dimensions111mm(Dia.) x 45mm(H)
WeightAbout 130g
ColorWhite

Effective Alert Area

Construction/HeightUnder 4M4M ~ 8M
Fire-proof Building90 M245 M2
Ordinary Building50 M230 M2

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