Patent ID: 11959471
Assignee: WATERS TECHNOLOGIES CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 7:
8. A peristaltic pump system comprising:
a peristaltic pump having a pump motor;
a temperature sensor disposed in an ambient environment of the peristaltic pump;
a memory module configured to store data defining a predetermined correspondence of a motor speed of the pump motor to the ambient temperature to produce a volumetric flow rate from the peristaltic pump; and
a processor in communication with the peristaltic pump, the temperature sensor and the memory module, the processor configured to determine the motor speed or a motor operation duration that delivers a selected volume of liquid from the peristaltic pump based on a temperature sensed by the temperature sensor and the predetermined correspondence of the motor speed of the pump motor to the ambient temperature, wherein the predetermined correspondence of the motor speed to the ambient temperature comprises previously acquired data indicating the motor speed used to produce the volumetric flow rate as a function of ambient temperature and as a function of a storage condition of the peristaltic pump, the processor further configured to provide a control signal to the peristaltic pump to operate the pump motor at the determined motor speed or motor operation duration.