Calibration Laboratory Brochure


“Fox Thermal Facility and Calibration Laboratory Capabilities" describes the importance of actual gas calibrations for gas flow measurement instrument accuracy.


Two important advancements in calibration and flow measurement technology were conceived by the Engineering team in the state-of-the-art calibration facility at Fox Thermal:

  • Accuracy specification that exceeds regulatory requirements for monitoring devices
  • In-situ Calibration Validation for mandated verification of device calibration
  • Gas-SelectX gas selection tool for field-selectable gases/gas mixes without re-calibration at the factory


Fox Thermal manufactures thermal mass flow meters commonly used to provide highly accurate gas flow measurement for industrial and oil & gas applications. Benefits of Fox Thermal meters in these applications include:

  • Direct mass flow measurement at very low flow rates
  • Superb turndown for upset conditions: up to 1000:1
  • Easy to install – insertion and inline styles available
  • Rugged, low-maintenance design - available with remote sensors


Fox thermal mass flow meters provide the real-time measurement required for sophisticated combustion control systems, as well as other critical flow measurement applications. These include compressed air monitoring, wastewater aeration, hydrogen monitoring, landfill gas monitoring, purge monitoring, and the measurement of flare, combustor, vent and natural gases.

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