Flame detector

Flame detectors have three main types: UV/IR, IR3 and Visual intelligent

UV/IR flame detectors:

  • They are able to detect ultraviolet (UV) and infrared (IR) radiation.
  • It consists of UV and IR sensors combined in a single detector.
  • IR sensors are sensitive to wavelengths of 2.5 μm to 3 μm.
  • UV sensors are sensitive to wavelengths of 0.185μm to 0.260 μm.
  • This combination provides fast response time and increased false alarm safety against radiation sources.

IR3 flame detectors:

  • It compares three specific wavelength bands in the IR spectral region and their ratio to each other.
  • One sensor monitors the 4.4 micrometer range and other sensors monitor wavelengths above and below 4.4.
  • These sensors distinguish between non-flame IR sources and real flames emitting hot CO2.
  • As a result, both the detection range and the safety against false alarms can be significantly increased.
  • It can detect the fire of 0.1 square meters of gasoline pan up to 65 meters in less than 5 seconds.

Visual intelligent flame detectors:

  • It uses a technique based on video imaging using CCD and advanced algorithms.
  • This technology processes live video images for flame features.
  • Uses dual CCDs, one used exclusively for flame detection and the other providing a live video feed.

Design Standards:

  • Flame detectors have a three-dimensional cone of vision.
  • Most models offer a field of view of approximately 90 to 120 degrees.
  • The sensitivity decreases at the edges of the field of view and the fire must be wider to be seen by the detector.