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AHR-871 Mechanical Rate of Rise Heat Detector

AHR-871 Mechanical Rate of Rise Heat Detector

This device is used to detect changes in temperature and alert people to the presence of a fire. It is an essential component of fire protection systems in buildings and other structures.
 
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.

  • Specifications

    Model AHR-871
    Type • 2-Wire    • 3-Wire    • 4-Wire
    Alarm Contact • N/A         • N/A         • 0.8A @30V DC
    0.4A@125V AC
    Voltage Range 12 ~ 30V DC
    Alarm Current @24V DC 470Ω • 40mA   • 40mA   • 35mA
    Alarm Temperature Comply to EN54
    Ambient Temperature 0°C ~ +55°C
    Material Fire-proof plastic
    Dimensions 111mm(Dia.) x 45mm(H)
    Weight About 130g
    Color White

  • Effective alert area

    Construction/Height Under 4M 4M ~ 8M
    Fire-proof Building 90 M2 45 M2
    Ordinary Building 50 M2 30 M2
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