Thermal gas mass flow meters outperform other flow measurement technologies, and Fox Thermal leads the industry for accuracy, quality, and innovative design.
Fox is the only thermal mass flow meter manufacturer with digital sensor technology.
Unlike many competing gas flow meters, thermal mass flow meters measure gas flow without moving parts like rotors. This design makes thermal mass flow meters less prone to mechanical issues and much easier to maintain.
Many flow measurement tools measure volumetric flow or the space that gas molecules occupy. Thermal flow meters directly measure mass flow, or the number of gas molecules within a space, providing more accurate data.
Since Fox Thermal Mass Flow Meters directly measure mass flow, they are not influenced by the temperature and pressure changes that volumetric flow meters may require additional compensation to overcome.
All thermal Gas Mass Flow Meters from Fox utilize the thermal sensing principle, a proven, accurate direct mass flow measurement technology. This technology performs at high levels of accuracy for a wide variety of gases.
Fox Thermal Flow Meters use a constant temperature differential (constant Δ T) technology to measure the mass flow rate of air and gases.
Fox Models FT2A and FT3 are equipped with the PowerPro™ Sensor, while Models FT1, FT4A & FT4X have the DDC-Sensor™.
Both thermal mass flow sensors consist of two temperature sensors, or Resistance Temperature Detectors (RTDs).
The sensor elements are constructed of a reference-grade platinum wire wound around ceramic mandrels inserted into stainless steel tubes.
Fox products are used to measure gas flow in a wide range of industries, including industrial plants, process heating facilities, water and wastewater treatment plants, and oil and gas upstream/production and midstream.
Other common applications include emissions monitoring, biogas flows, and monitoring compressed air lines for losses.
For a full list of industries and applications, please visit https://www.foxthermal.com/applications/.
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Explore the key differences between Thermal Mass Flow Meters and other technologies, plus what makes Fox Thermal Mass Flow Meters the better choice for virtually any application.
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