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    Sounder Beacon

    S-A491 Intelligent Sounder Strobe is a kind of audible and visual alarm device installed in field, which can be initiated by fire alarm control panel in fire control center or by manual call point installed in field. Having been initiated, it will generate strong audible and visual alarm signal to warn people in field.

    Both shallow base with 25.5mm high and deep base with 40mm high are available, deep base is used if there is no special statement in this manual.

    • Providing two tones.
    • Using several high red LEDs as light source.
    • Initiated by shorting external terminals; not affected by loop power cut.
    • Signal loop and power loop are polarity-insensitive, which is convenient for wiring and features power-off checking.
    • Standard: EN 54-3.

    S-A491 Intelligent Sounder Strobe is a kind of audible and visual alarm device installed in field, which can be initiated by fire alarm control panel in fire control center or by manual call point installed in field. Having been initiated, it will generate strong audible and visual alarm signal to warn people in field.

    Both shallow base with 25.5mm high and deep base with 40mm high are available, deep base is used if there is no special statement in this manual.

    • Providing two tones.
    • Using several high red LEDs as light source.
    • Initiated by shorting external terminals; not affected by loop power cut.
    • Signal loop and power loop are polarity-insensitive, which is convenient for wiring and features power-off checking.
    • Standard: EN 54-3.

    Specifications

    Operating Voltage Loop: 24V
    Power: 24VDC
    Standby Current Loop≤1mA
    Power≤3mA
    Action Current Loop≤5mA
    Power≤50mA
    Wiring Four-wire, connecting with polarity-insensitive loop. Polarity-insensitive two-wire for connecting power.
    Tone I Sound Level: 75dB~85dB (at 3m ahead horizontally (A weighted)
    Flashing Frequency: 0.7 × (1±20%)Hz
    Sound Pattern: 2.8KHz (430ms on /1200ms off)
    Tone II Sound Level: 85dB~115dB (at 3m ahead horizontally (A weighted))
    Flashing Frequency: 1.4×(1±20%)Hz
    Sound Pattern: 2.8KHz (430ms on /340ms off)
    Programming Mode Electronically addressed
    Programming Range Occupying 1 or 2 (when device type is 121) address within 1～242.
    Ingress Protection Rating IP33
    Operating Temperature -10°C～+50°C
    Relative Humidity ≤95%, non condensing
    Material and Color of Enclosure ABS, red (PANTONE 1795C)
    Dimension (L×W×H) ф110mm×97.5mm
    ф110mm×83mm(shallow base)
    Mounting Hole Spacing 55mm～80mm
    Weight About 355g (deep base)
    About 327g (shallow base)