Learn the principles of operation in thermal mass flow meter technology and how thermal dispersion mass flow meter technology works. Find out more about Sierra's line of heavy and light industrial thermal mass flow meters at: http://www.sierrainstruments.com/prod...

Industrial thermal mass flow meters, also known as thermal dispersion or immersible thermal mass flow meters comprise a family of instruments for precision measurement of total mass flow rate of a fluid, primarily gases, flowing through closed conduits such as pipes & ducts.

Applications are as diverse as: clean energy, natural gas distribution, flare gas, compressed air in manufacturing facilities, semiconductor manufacturing, wastewater aeration, natural gas to burners & boilers, carbon dioxide for chilling food & fermenting beverages, nitrogen & oxygen in production plants, Argon for making iron & steel, & the list goes on & on.

Standard accuracy is 1% of full scale flow, but recent innovation, as with Sierra's QuadraTherm thermal meter, has pushed accuracy to 0.5% of reading rivaling that of coriolis meters.

Thermal flow meters are often more economical than other mass flow meters & have become extremely popular due to high turndown (up to 1000 to 1) giving ability to measure very low to very high flows with the same instrument. Since they are rugged, reliable, have no moving parts, easy to insert via hot-tap, have negligible pressure drop, & an economical solution, thermal technology has been a rapidly adopted over the last decade.

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