1. Usage environment of IC card water controller: Any location with running water faucets can utilize the controller to achieve water-saving purposes. For example: bathrooms, collective and individual apartments, water boiler rooms, etc. The product design fully considers aspects such as waterproofing, safety, practicality, and operability.

2. Energy-saving method of IC card water controller: The smart card water-saving device is mainly used to control solenoid valves and simultaneously achieve billing based on time and water flow during usage.

3. Power supply for IC card water controller: The IC card water controller is uniformly powered by a dedicated power supply cabinet (220V to 12V) from the equipment room or substation. Each transformer can supply power to 20 to 40 IC card water controllers, with a distance requirement of within 500 meters. The water-saving control unit and water-saving valve operate at a safe AC voltage of 12V, without high voltage or 220V AC voltage, ensuring user safety. The solenoid valve uses a low-energy consumption coil to ensure operation at lower current.

4. Waterproof measures for IC card water controller: The outer shell of the IC card water controller is designed with waterproof materials. The data cable entry and exit points use waterproof connectors. A rubber ring is pressed into the groove at the junction between the bottom cover and the top cover, and the rubber groove adopts a labyrinth design. Wiring requirements should be synchronized with decoration, with lines running inside walls for safety. If wall modification is not possible, piping can be used for wiring.

5. Billing settings for IC card water controller: Each IC card water controller can be individually set with a ratio of water volume to time, converting to a time-based billing model. A flow rate and time correspondence table is set according to the customer's water pressure and pipe diameter (unit: yuan/minute). Billing standards can also be set based on flow rate as needed.

6. Main uses of IC card water controller: