major function

Control function: Recharge pre deposited water fees through purchasing water cards, pay first before use, and eliminate the phenomenon of water fee arrears.

Query display: The LCD can display the current sufficient water volume, remaining purchased water volume, and accumulated water volume used, making it convenient for users to query.

Protection function: The valve automatically closes when there is insufficient voltage, abnormal signal, or external magnetic interference.

Prompt alarm: Promptly prompt when the battery is under voltage, the remaining water level is insufficient, misoperation, magnetic interference, and other situations occur.

Automatic statistics: Automatically track the actual monthly water usage of users, facilitating management by operators.

Anti blocking: Adopting patented design of anti freezing circuit and valve anti blocking to prevent the malfunction of the water meter actuator.

Automatic maintenance: The self check function is set in the table to detect the flexibility of the valve and prevent battery sleep. The detection time can be set according to the user's needs.

Data retention: User data can be saved for more than ten years, and will not be lost when the battery is dead or disconnected.

Battery replacement function: When the water meter battery is low, users can replace the battery themselves without affecting their normal water use, while reducing the cost and workload of battery replacement for management departments.

Battery replacement and valve closing: When the user removes the battery from the meter, the water meter automatically closes the valve, prohibiting the user from using water. The user needs to replace the battery before normal use, to avoid malicious removal of the battery for water use.

technical parameter

Water temperature: 0.1 ℃ -30 ℃

Work pressure: ≤ 1.0MPa

Pressure loss: ≤ 0.063MPa

Working voltage: 4.5V (3 AA batteries)

Working current: ＜ 40mA

Static current: ＜ 3μA

Static power consumption: 3.6VX3 μ A ＜ 10.8 μ VA

Electromagnetic compatibility of IC card water meter: meets the relevant requirements of GB/T17626.2, GB/T17626.3-2007, and GB/T17626.4

IC card accelerated wear test: meets the relevant requirements of GB/T778.3-2007

Valve performance: When the water pressure is 0.02 MPa and 1.0 MPa respectively, it can reliably close and operate flexibly without any abnormal phenomena when water is supplied at the common flow rate (Q3).

Durability of IC card water meter socket: The insertion rate is less than 20 times/min, and after repeated insertion and removal of 10000 times, the socket can be used normally.

Basic table parameters