Flame Detector




Flame Detector


A flame detector is a fire detection device that senses the presence of flame by detecting characteristic radiation emitted by fire (UV, IR, or both). Unlike smoke detectors, flame detectors can respond very quickly, often within milliseconds to a few seconds.



They are commonly used in

  • Oil & gas plants
  • Chemical industries
  • Power plants
  • Warehouses & fuel storage
  • Turbine enclosures
  • Battery energy storage systems (BESS)


Types of Flame Detectors

  • Detects UV radiation (180–260 nm range) emitted by flames
  • Very fast response (milliseconds)
  • Can be triggered by welding arcs or lightning (false alarm risk)


IR (Infrared) Flame Detector

  • Detects infrared radiation patterns from fire
  • More resistant to false alarms than UV
  • Works well in smoky environments


UV/IR Dual Flame Detector

  • Combines UV + IR sensing
  • Reduces false alarms
  • Faster and more reliable than single-spectrum detectors


Triple IR (IR3) Flame Detector

  • Uses three IR wavelengths
  • High immunity to false alarms
  • Detects hydrocarbon fires at long distances


Key Features to Look For

  • Detection range (10m–60m typical)
  • Explosion-proof certification (ATEX / IECEx for hazardous areas)
  • Fast response time
  • Immunity to false alarms
  • IP66/IP67 weather protection
  • Relay outputs / 4–20mA / Modbus integration