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  8. Addressable Heat Detector
  9. Addressable Heat Detector
    Dahua

    Addressable Heat Detector

    Stock Code: HY-2311

    Monitors heat build-up and identifies fire by temperature
    The addressable heat detector mounts on the ceiling and measures ambient temperature continuously. Alongside the fixed 62°C ± 3°C threshold it also evaluates a dynamic rise of 1 to 30 K/min and signals the alarm with the indicator light.
    150 m²Coverage below 4 m
    62°C ± 3°CFixed Detection Threshold
    A2RSensor Class
    DC 24VOperating Voltage
    –10°C to +50°COperating Temperature
    EN54-5Compliance Standard
    Key features
    Dual thresholdIt weighs the fixed 62°C ± 3°C threshold together with a rise rate of 1 to 30 K/min.
    CoverageIt covers 150 m² at installation heights below 4 m and 80 m² between 4 m and 12 m.
    Remote indicatorIt supports a remote indicator connection.
    Low currentStatic current stays at 250 µA or below and alarm current at 350 µA or below.
    Easy installationNon-loosening screws on the base terminal speed up mounting.
    Durable contactsThe contact material resists acid and rust.
    Technical Specification
    Surveillance AreaInstallation height below 4 m: 150 m²
    Installation height between 4 m and 12 m: 80 m²
    Alarm ModeIndicator light alarm
    Remote IndicatorSupport
    Working PrincipleHeat detection
    Sensor ClassA2R
    Fixed Detection Threshold62°C ± 3°C (144°F ± 37.4°F)
    Dynamic Detection1 to 30 K/min
    Operating VoltageDC 24V
    Operating CurrentStatic current: ≤ 250 µA
    Alarm current: ≤ 350 µA
    Operating Temperature–10°C to +50°C (14°F to 122°F)
    Operating Humidity≤ 95% RH (no condensation)
    Dimensions (with base)Φ100 mm × 46.3 mm (Φ 3.94" × 1.82")
    Weight (with base)102 g (0.22 lb)
    InstallationCeiling Mount
    Compliance StandardEN54-5
    Response Time Limits (Rate of Rise of Air Temperature)
    Response Time Table
    K/minLower Limit (min)Lower Limit (s)Upper Limit (min)Upper Limit (s)
    1290460
    3713160
    549100
    1020530
    2010313
    30040225

    Datasheet

    HY-2311

    18/12/2025

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