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Intelligent Heat Detectors


Signature Series Model SIGA-HFSAB & SIGA-HRSAA Intelligent Heat Detectors gather analogue information from their fixed temperature and/or rate-of-rise heat sensing elements and converts it into digital signals. The detector’s on-board microprocessor measures and analyses these signals. It compares the information to historical readings and time patterns to make an alarm decision. Digital filters remove signal patterns that are not typical of fires. Unwanted alarms are virtually eliminated. The microprocessor in each detector provides four additional benefits - Self-diagnostics and History Log, Automatic Device Mapping, and Fast, Stable Communication.
Note: Some features described here may not be supported by all control systems. Check your control panel’s Installation and Operation Guide for details.
  • 9° C/min rate-of-rise/57° C ft. and 57 ° C fixed temperature type 
  • Intelligent detector c/w integral microprocessor 
  • Non-volatile memory 
  • Automatic device mapping 
  • Electronic addressing
  • Identification of defective detectors 
  • Twin RED/GREEN status LEDs
  • Standard, relay, fault isolator, and audible mounting bases 
  • Designed and manufactured to ISO 9001 standards 
  • Heat Sensing Element: 
    SIGA-HFSAB:  Fixed Temperature
    SIGA-HRSAA: Fixed & Temperature/ Rate-of-Rise
  • Alarm Point: 
    SIGA-HFSAB:  Alarms at 57oC Ambient
    SIGA-HRSAA: Alarms at 57oC Ambient or Temp. increase above 9oC per min
  • Operating and Storage Environment: 
    Operating Temp: 0oC to 38oC
    Storage Temp: -20oC to 60oC)
    Humidity: 0 to 93% RH, Non-Condensing.
  • Operating Voltage: 15.2 to 19.95 Vdc (19 Vdc nominal)
  • Operating Current: Quiescent: 45μA @ 19 V Alarm: 45μA @ 19V. Pulse Current: 100 μA (100 msec)
  • Construction & Finish: High Impact Engineering Polymer - White
  • Compatible Mounting Bases: SIGA-SB Standard Base, SIGA-RB Relay Base, SIGA-IB Isolator Base, SIGA-AB4, SIGA- AB4G Audible Bases
  • LED Operation: On-board Green LED - Flashes when polled On-board Red LED - Flashes when in alarm. Com- patible Remote Red LED (model SIGA-LED-AU) Flashes when in alarm
  • Compatibility: Use With SIGNATURE Loop Controller
  • Address Requirements: Uses one device address
  • UL
  • ULC
  • MEA
  • CSFM
  • FM
  • ActivFire
Note: Some features described here may not be supported by all control systems. Check your control panel’s Installation and Operation Guide for details.
  • 9° C/min rate-of-rise/57° C ft. and 57 ° C fixed temperature type 
  • Intelligent detector c/w integral microprocessor 
  • Non-volatile memory 
  • Automatic device mapping 
  • Electronic addressing
  • Identification of defective detectors 
  • Twin RED/GREEN status LEDs
  • Standard, relay, fault isolator, and audible mounting bases 
  • Designed and manufactured to ISO 9001 standards 
  • Heat Sensing Element: 
    SIGA-HFSAB:  Fixed Temperature
    SIGA-HRSAA: Fixed & Temperature/ Rate-of-Rise
  • Alarm Point: 
    SIGA-HFSAB:  Alarms at 57oC Ambient
    SIGA-HRSAA: Alarms at 57oC Ambient or Temp. increase above 9oC per min
  • Operating and Storage Environment: 
    Operating Temp: 0oC to 38oC
    Storage Temp: -20oC to 60oC)
    Humidity: 0 to 93% RH, Non-Condensing.
  • Operating Voltage: 15.2 to 19.95 Vdc (19 Vdc nominal)
  • Operating Current: Quiescent: 45μA @ 19 V Alarm: 45μA @ 19V. Pulse Current: 100 μA (100 msec)
  • Construction & Finish: High Impact Engineering Polymer - White
  • Compatible Mounting Bases: SIGA-SB Standard Base, SIGA-RB Relay Base, SIGA-IB Isolator Base, SIGA-AB4, SIGA- AB4G Audible Bases
  • LED Operation: On-board Green LED - Flashes when polled On-board Red LED - Flashes when in alarm. Com- patible Remote Red LED (model SIGA-LED-AU) Flashes when in alarm
  • Compatibility: Use With SIGNATURE Loop Controller
  • Address Requirements: Uses one device address
  • UL
  • ULC
  • MEA
  • CSFM
  • FM
  • ActivFire