Patent ID: 11927584
Assignee: SHENZHEN ANGEL DRINKING WATER INDUSTRIAL GROUP CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 7:
8. A water hardness detection method by using the sensor of claim 1, comprising:
opening the first valve, closing the second valve, injecting raw water into the raw water pipe, locating both the first probe and the second probe in the raw water, and measuring the first potential between the first probe and the second probe;
opening the second valve, closing the first valve, injecting softened water into the softened water pipe, locating the first probe in the raw water, locating the second probe in the softened water, and measuring the second potential between the first probe and the second probe; and
determining, by the processor, the water hardness of the softened water according to the potential difference between the first potential and the second potential.