Principle and repair of prepaid water meter

The prepaid water meter is a kind of water meter that measures the amount of water and realizes the prepaid charge. It works as follows:

Through the electronic metering unit, the amount of water is converted into an electrical pulse signal in time, and the water consumption is accumulated after calculation, and the data is stored in the water meter chip.

The user prepaid the water bill into the water meter chip, and the system will reduce the prepaid water volume. When the water consumption reaches the prepaid water volume, the water meter will close the water valve and stop the water supply.

When users need to use water, they first need to buy a prepaid water card and insert the card into the IC card slot on the water meter.

Users can choose to buy a certain amount of water bills and recharge these fees to the IC card.

During the watering process, the water meter will automatically deduct the corresponding fee according to the user's water consumption until the account balance is insufficient, and the water meter will automatically close the valve and stop the water supply1.

Common failures of prepaid water meters and their repair methods are as follows:

Unable to recharge: Check whether the battery of the prepaid water meter is low or the battery polarity is properly installed to troubleshoot the battery failure. If the battery is working, check whether the gift card is normal or the reader is faulty.

Inaccurate metering: After a long period of use, the chip with a prepaid water meter may cause errors and a new chip needs to be replaced. At the same time, it is also necessary to check whether the water valve of the water meter is tightly structured and there is no leakage of water.

Non-stop rotation: When the prepaid water meter cannot rotate at the specified time interval, it may be a structural failure of the water valve, and the internal water meter needs to be cleaned or repaired.

Leakage: When the water meter leaks, it is necessary to check the seal of the water meter, especially at the water pipe interface. If the internal water meter is leaking, the internal seal needs to be replaced.

In short, the prepaid water meter may also fail during daily use. If it is simply insufficient power, card failure and other problems, it is relatively easy to solve. However, some structural problems need to be handled by professional maintenance personnel.