How to Read a Flowmeter
Online Calculator to correct the reading of a flow-meter for pressure here - https://www.oxidationtech.com/ozone/o...
Formula to use - Corrected Flow = Measured flow X √ (PSI +14.7) / 14.7
A standard rotometer style flow-meter using a floating ball is commonly used on oxygen concentrators and ozone generators to measure gas flow-rates. This standard flow-meter may be used in a wide variety of applications and are therefore calibrated to read gas flow accurately at ambient temperatures and pressures of the gas passing through the flow-meter.
When the gas, either air or oxygen, passing through the flow-meter is pressurized the flow-meter will read that flow inaccurately.
An accurate flow measurement is essential to diagnose low oxygen purity from oxygen concentrators, prevent damage to oxygen concentrators, and get accurate calculations of ozone production from an ozone generator.
Flowmeters are available that are calibrated for various different operating pressure. The flowmeters we use at Oxidation Technologies on our equipment are all calibrated at 0 psi or atmospheric pressure. This allows us to get an accurate flow reading under any pressure provided the reading is corrected for pressure without questioning the original calibration pressure of the flow-meter in use.
You can read more about this here: https://www.oxidationtech.com/ozone/h...
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