All flowmeters present some level of flow impedance, and the degree of impedance differs among meters. When connected to a flow source, the difference in impedance loads the system to varying magnitudes. This will usually result in a change of flow from the source. Although each meter will read and display the current flow from the source respectively, the source flow will change relative to the degree of loading. For this reason, it is inappropriate to “check” the gas flow measurement of one volumetric flowmeter against that of another.
Why do I see a difference between the reading of the ProFLOW 6000 flowmeter and the reading of another flowmeter?
30 Jul 2025
GNOT5210

