Positive displacement metering system

A positive displacement metering system comprising:

• a) a water fill cylinder assembly, a water meter, and a primary valve, wherein when said primary valve is closed, water is diverted to said water fill cylinder assembly, and when said primary valve is open, water freely flows through said water meter to a property being monitored;
• b) said water fill cylinder assembly having a piston and a spring located within said cylinder assembly;
• c) said piston having a magnet thereon, located within said water fill cylinder assembly;
• d) two or more sensors mounted on said cylinder assembly;
• wherein water flows into said cylinder assembly and moves said piston, compressing said spring, whereby said two or more sensors detect a position of said magnet on said piston with respect to said water fill cylinder assembly and a timing of a movement of said piston, and thereby measures a true displacement volume and rate of flow;
• and
• wherein said two or more sensors includes three sensors including an override sensor, and thereby times the movement of said piston for measuring the true displacement volume and rate of flow.

A method for making a positive displacement metering system comprising:

• a) providing a water fill cylinder assembly, a water meter, and a primary valve, wherein when said primary valve is closed, water is diverted to said water fill cylinder assembly, and when said primary valve is open, water freely flows through said water meter to a property being monitored;
• b) providing a piston having a magnet thereon, located within said water fill cylinder assembly;
• c) providing two or more sensors mounted on said cylinder assembly;
• wherein water flows into said cylinder assembly and moves said piston, compressing said spring, whereby said two or more sensors detect a position of said magnet on said piston and a timing of a movement of said piston, and thereby measures a true displacement volume and rate of flow;
• wherein said water fill cylinder assembly and said two or more sensors are connected to and in communication with a data acquisition unit and a control panel, whereby said data acquisition unit uses acquired timing data to determine rate of flow;
• and
• wherein said data acquisition unit and the control panel is in communication with said two or more sensors and can switch between standard operation logic and small leak detection logic.

A method for making a positive displacement metering system comprising:

• a) providing a water fill cylinder assembly, a water meter, and a primary valve, wherein when said primary valve is closed, water is diverted to said water fill cylinder assembly, and when said primary valve is open, water freely flows through said water meter to a property being monitored;
• b) providing a piston having a magnet thereon, located within said water fill cylinder assembly;
• c) providing two or more sensors mounted on said cylinder assembly;
• wherein water flows into said cylinder assembly and moves said piston, compressing said spring, whereby said two or more sensors detect a position of said magnet on said piston and a timing of a movement of said piston, and thereby measure a true displacement volume and rate of flow;
• and
• wherein said two or more sensors includes three sensors including an override sensor, and thereby times the movement of said piston for measuring the true displacement volume and rate of flow.