Air Monitoring
Mass Flow Controllers with World-Class Repeatability
Jun 01 2015
In a variety of analytical applications where mass flow products – mass flow controllers (MFC’s) and mass flow meters (MFM’s) - are used, it is often not the absolute accuracy, but the repeatability that is critical towards achieving high performance.
Repeatability is a standardised term often used with reference to measurement instruments, and adopted by ASTM and other standardisation organisations. This performance criterion is associated with the precision of measurements generated on the same material using the same test method under specific conditions.
In a recent test of randomly-selected Axetris (Switzerland) MFC’s, the majority of measurements using these devices proved to surpass the repeatability of +/- 0.1% Of Reading (O.R.). Standard MFC’s available today generally specify a repeatability range which is at least twice of this value. These test results once again enforce the superior performance delivered by Axetris mass flow products.
Axetris mass flow solutions are based on their proprietary MEMS technology, and find use in a variety of high-performance applications such as analytical instruments (e.g. Gas Chromatography), leak testing, thin film coating and bioreactor gas flow control.
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