Patent ID: 8671733
Filing Date: 2014-03-18
Classification: G01F

Abstract:
1. A method of calibrating a flow meter, comprising: providing a withdrawal unit having a collection chamber, a flow meter, and a vessel having a first liquid with a first gas solubility, the vessel being in fluid communication with the flow meter and the withdrawal unit, and wherein the flow meter is precalibrated for use with the first liquid; providing a second liquid, the second liquid having a second gas solubility, the second gas solubility less than the first gas solubility; replacing the first liquid with the second liquid; pressurizing the vessel; withdrawing the second liquid at a known volume per unit time from the vessel through the flow meter and into the collection chamber; measuring and comparing a withdrawal volume per unit time measured through the flow meter to a withdrawal volume per unit time measured with the withdrawal unit; and updating calibration parameters of the flow meter for use with the first liquid based on the results of the comparing.