prepaid water meter

Features

1. Data Encryption and Security：Prepaid water meterUsing encryption technology, each household has one card and one code. The data transmission application of encryption technology ensures strong data confidentiality during the use of the water meter, ensuring the security of the entire data transmission process. Outsiders cannot decipher or create fake cards.

2. Electronic Metrology and StorageUsing pulse counting method to automatically measure user water consumption, in conjunction with the original rotary wing water meter, without changing the measurement accuracy of the original water meter. The intelligent water meter controller has a pulse sampling and processing circuit. At any time when the power fails, all operating data will be stored in the internal EEPROM for more than ten years.

3. Query functionThe function of limiting the amount of water purchased has been set to prevent users from hoarding too much available water. Users can check the remaining water level by inserting the water purchase card into the controller box, or use the "check card" to check the current usage status of the water meter, such as meter number, number of water purchases, alarm water level, etc.

4. Overdraft metering functionIf the valve malfunctions and the user can still use water when the purchased water is depleted, the controller will continue to measure the 'overdrawn' water volume. When the user purchases water again, the controller can automatically deduct the overdrawn "zero crossing" water amount and write the relevant information back to the user's water purchase card.

5. Anti attack and protectionCheckpoints can prevent attacks from various behaviors, such as inserting iron plates and other ineffective attacks. At the same time, the water meter can effectively prevent magnetic attacks and automatically close the valve when an external strong magnetic field approaches the controller.

6. Automatic descaling and maintenanceAn automatic descaling function has been designed to address the characteristics of hard and easy to scale water in northern China. The motor drives the valve to open and close once a month to remove scale from the valve. At the same time, the battery is discharged regularly to increase its service life.

Product performance

• Power supply and lifespan：Prepaid water meterPowered by lithium batteries, with a long usage time, such as the DN15 prepaid IC card water meter's lithium battery usage time of ≥ 6 years. Some water meters are powered by dry batteries, which automatically detect the battery level. Users can replace the battery themselves, which is convenient and reliable.

• protective performanceWaterproof design of the card holder, the entire meter can achieve spray waterproofing, with a high protection level. For example, the DN15 prepaid IC card water meter has a protection level of IP68 and can work stably in harsh environments.

• measurement accuracyThe product technical standards comply with CJ/T133-2012 and GB/T778-2007 standards, with a measurement accuracy of level 2 and compliance with ISO4046 standard, and can accurately measure water consumption.

• Stress adaptabilityThe working pressure is 1.0MPa, the experimental pressure is 1.6MPa for 15 minutes, and the pressure loss is ≤ 0.063Mpa, which can adapt to different water pressure environments.

Product Model

• DN15 prepaid IC card water meterSuitable for small flow water applications such as households, with a diameter of 15mm.

• IC card prepaid annual step water meterModels such as FS-20J support multi-level water pricing and have automatic price adjustment for excess water usage, encouraging users to save water.

• Non contact IC card dry water meterAdopting a structure of sensor and counter isolation, it can measure the flow rate of different water qualities, effectively preventing water mist and condensation caused by internal and external temperature differences. It has the advantages of accurate measurement, clear readings, anti freezing, strong circulation ability, low pressure loss, and not affected by water quality during long-term operation.