A Dirty Little Secret: Case Study on Thermal Flow Meter Calibration for Natural Gas Service

A Dirty Little Secret: Case Study on Thermal Flow Meter Calibration for Natural Gas Service


MARINA, Calif. – Fox Thermal announced today the publication of the case study titled “A Dirty Little Secret: Case Study on Thermal Flow Meter Calibration for Natural Gas Service”. This case study describes the challenges users face when the natural gas composition varies from place to place. A flow meter calibrated for a “standard” natural gas mix may result in compromised flow measurement accuracy if the natural gas composition in the pipe doesn’t match the standard mix the flow meter has been calibrated to measure. This problem can be faced by users across industries in a variety of applications. Any process that involves the use of natural gas can be affected.  This case study can be used as a reference for industry professionals looking to specify flow measurement technology used in the measurement of natural gas and:

  • Changing gas compositions without compromising accuracy
  • Mandated monitoring devices with an accuracy of ±2%, ±5%, or ±7.5% or better
  • Harsh and remote environments

Fox thermal flow meters are commonly used to provide accurate gas flow measurement for industrial applications.  Benefits of Fox meters in these applications include:

  • Gas-SelectX® gas selection tool for field-selectable gases/gas mixes without re-calibration at the factory
  • Direct mass flow measurement at very low flow rates
  • Superb turndown for upset conditions – up to 1000:1
  • Accuracy specification that exceeds regulation requirements for monitoring devices
  • In-situ Calibration Validation for mandated verification of device calibration
  • 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 metering, wastewater aeration, hydrogen monitoring, landfill gas monitoring, purge monitoring, and the measurement of flare, combustor, vent and natural gases.

This case study has been published electronically and is available for download or in print version by request at https://www.foxthermal.com/literature/natural-gas-calibration-case-study.php


Fox Thermal is a rapidly growing manufacturer of thermal mass flow meters for gas flow measurement in industrial process and oil & gas applications.  With the demand for monitoring devices growing each year, Fox strives to become the leader in innovative products and to provide exceptional customer service. Fox’s commitment to producing quality, cost-effective instruments has helped the company build strong relationships with its customers at home and abroad.  More information on Fox Thermal can be found at http://www.foxthermal.com/

3 Ways Technology is Going to Shape the Oil and Gas Industry Free to Download Today

Oil and gas operations are commonly found in remote locations far from company headquarters. Now, it's possible to monitor pump operations, collate and analyze seismic data, and track employees around the world from almost anywhere. Whether employees are in the office or in the field, the internet and related applications enable a greater multidirectional flow of information – and control – than ever before.

Related posts