Digital pressure switch systems and methods
AssigneeGeneral Air Products, Inc.
InventorsTrent J. Kowalski, Ron E. McClellan, Richard A. West
Life of this patent
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Abstract
A digital pressure switch is configured to be connected to a fluid pump. The digital pressure switch includes a pressure sensor configured to measure pressure inside a closed system, one or more relays configured to be connected to the fluid pump for activation and deactivation of the fluid pump, an amperage sensor configured to measure an amperage draw of an electric motor of the fluid pump, and a controller configured to process data from the pressure sensor and/or data from the amperage sensor and to activate or deactivate the motor of the fluid pump based on the data from the pressure sensor and/or the data from the amperage sensor, using the relays.
Claims23
A digital pressure switch configured to be connected to a fluid pump, the digital pressure switch comprising:
- a housing;
- a pressure sensor configured to measure pressure inside a closed system;
- one or more relays configured to be connected to the fluid pump for activation and deactivation of the fluid pump;
- one or more controllers configured to process data from the pressure sensor and to activate or deactivate the motor of the fluid pump based on the data from the pressure sensor, using one or more of the one or more relays;
- a first valve connector configured to connect a plurality of drain valve arrangements disposed outside the housing to a timed drain valve electrical circuit;
- and
- a second valve connector configured to connect a plurality of unloading valve arrangements disposed inside and outside the housing to an unloading valve electrical circuit.
A method of monitoring a closed system using a digital pressure switch configured to be connected to a fluid pump,
- the digital pressure switch comprising:
- a housing;
- a pressure sensor configured to measure pressure inside the closed system;
- one or more relays configured to be connected to the fluid pump for activation and deactivation of the fluid pump;
- one or more controllers configured to process data from the pressure sensor and to activate or deactivate the motor of the fluid pump based on the data from the pressure sensor, using one or more of the one or more relays;
- a first valve connector configured to connect a plurality of drain valve arrangements disposed outside the housing to a timed drain valve electrical circuit;
- and
- a second valve connector configured to connect a plurality of unloading valve arrangements disposed inside and outside the housing to an unloading valve electrical circuit,
- the method comprising:
- acquiring first pressure data representative of pressure inside the closed system from the pressure sensor.
Dependencies are inferred from the claim text.