Why Thermal Mass Flow Meter Technology is Recommended for Best Accuracy

It is no secret that price and, more importantly, performance influence the purchase of all new products. Measurement control and accuracy are critical in industrial processes and lab experiments.

Inaccurate flow reading or poor control over the flow can compromise a study, impact on product quality, and result in inefficient processes.

So What Type of Flow Meter Technology Should You Choose for the Highest Accuracy?

Differential pressure systems, which consider speed as the most significant factor, and other competitive “indirect-type” mass flow measurement technologies, must calculate mass flow and can only measure volumetric flow. As it measures the flow of gases directly at the molecular level, thermal mass flow technology is an industry standard for mass flow control of gases.

In essence, the technology counts and controls each and every gas molecule that flows through the instrument to provide excellent precision.

In order to optimize the flow process, the factor to be taken into consideration is the weight or molecular mass. The gas mass flow rate is not affected by pressure or temperature effects, as mass flow controllers measure the rate directly.

Accurate, reliable, smooth, and steady gas mass flow rate can be obtained, irrespective of pressure fluctuations happening upstream or the temperature of the gas.The following video shows how the thermal mass flow controller technology works.

Working mechanism of the capillary thermal mass flow controller technology

Sierra has been developing precision gas mass flow controllers (MFC) for more than 40 years. Sierra’s SmartTrak mass flow controller lineup has a record of more than 100,000 successful installations, proving the high-performance of the systems.

 

This information has been sourced, reviewed and adapted from materials provided by Sierra Instruments.

For more information on this source, please visit Sierra Instruments.

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