General Introduction
Various specifications: DN40 DN50 DN80 DN100 DN150. One meter with one IC card, use water by IC card. When water meter receives data from IC card, it will open valve and begin water supply. After purchased water volume is used up, it will stop water supply. FS-L is separate structure, which is composed of controller, waterproof electric ball valve and transmitting water meter.
Controller Models
FS-L-DC model, which is suitable for DN40 water meter, powered by high lithium cells and with no energy consumption technology to guarantee long service life of cells.

FS-L-AC model, which is suitable for DN50/80/100/150 water meters, can supply larger current when open or close valve. Controller is powered by 220V AC and storage battery, 220V AC will charge up storage battery at ordinary time. When power cut, storage battery will supply power for 2-3 days.? In case of the voltage of storage battery is lower and not enough for power supply, water meter will close valve automatically.

Main Performances
1. Waterproof electric ball valve, imported from Taiwan, made from UPVC industrial material, erosion and aging resistance.

2. Powered by 220V AC and storage battery. If AC is failure, storage battery can go into operation. When storage battery is below capacity, valve will close automatically to stop water supply.

3. When remaining water volume is 20 tons, controller will close valve automatically to alarm consumer. Water supply can be resumed by swiping customer’s IC card on the induction area again.

4. If controller still receives digital signals from transmitting water meter after close valve, the screen of controller will show negative number, and only when customer prepays for new purchased water volume and swipes his IC card on water meter, the negative number can be reduced until it becomes positive number to avoid illegal water use.

5. Timing operation of valve, which can effectively prevent locking with rust due to long time idle state.