Flame Intensity Monitor (FI)

Overview

Williamson Flame Intensity Monitors (FI) are the single-wavelength sensors of choice for a variety of flare applications where the more sophisticated dual-wavelength flare products are not appropriate or are not required. This lower-cost technology is also commonly used as a pilot flame detector for ground flares and landfill flares where the viewing distance is less than about 300 feet or 100 meters. Products specifically designated for flame intensity monitoring applications include:

  • Pilot Monitoring of Hydrogen, Ammonia or CO Flames
  • Pilot Monitoring of Ground Flares and Landfill Flares
  • Flame Intensity Monitoring

FI2 vs. FI5

The Flame Intensity monitor is available in two different wavelengths – the FI2 and the FI5.

FI5
  • Sensitive to CO, CO2, and H-C flames.
  • Not available in EXP configuration.
  • Only available with D/40 optical resolution
  • Typically preferred for CO flares
FI2
  • Sensitive to H2, NH4, and H-C flames.
  • Available in N4, EXP and EXPSS configurations.
  • Available in D/35, D/100, and D/200 optical resolutions
  • Typically preferred for Hydrocarbon flares

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Key Product Features

  • Thoughtful wavelength selection for maximum sensitivity
  • Model FI2 is recommended for Hydrogen and Ammonia, Model FI5 is recommended for CO Flames
  • Ideal as a Pilot Monitor for Ground Flares and Landfill Flares
  • Increased sensitivity compared to UV flame detectors
  • Adjustable Sensitivity for Optimum Performance

Common Applications

  • Pilot Monitoring of Hydrogen, Ammonia or CO Flames
  • Pilot Monitoring of Ground Flares and Landfill Flares
  • Flame Intensity Monitoring

Product Specifications

Options & Accessories

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