A Positive Displacement Meter is a type of flow meter used to measure the volume of liquids or gases. It operates by capturing a fixed amount of fluid in a chamber and then releasing it, counting each cycle to determine the total flow. This design ensures accurate measurements, even at varying flow rates. These meters are commonly used in various industries, including water supply, oil and gas, and chemical processing. Their reliability and precision make them ideal for applications where accurate volume measurement is crucial.