ISW1598 Smart Prepaid Water Meter Charged by RFID or IC Card

ISW1598 Prepaid Water Meter Charged by Smart RFID or IC Card

ISW1598 RFID or IC Card Smart Prepaid Water Meter 

I. Introduction of RFID or IC card prepaid water meter

ISW1598 Smart Prepaid Water Meter by RFID or IC Card is a smart digital water utility device that uses a physical smart card embedded with an encrypted microchip to manage and transfer water credits. Operating on a strict “pay-before-use” model, the meter reads credit tokens directly from the card to update its internal balance. When the loaded water volume drops to zero, the meter commands an internal motorized electronic ball valve to shut off the water supply immediately.

II.How the IC Card Prepaid System Operates

The setup manages water distribution locally without relying on real-time internet connections through a physical data loop:

i.   The Vending Station: The user takes their assigned IC card to a property management desk, utility office, or self-service vending terminal. Upon payment, the management software uses a specialized card reader to write the encrypted volume of water purchased (typically measured in cubic meters or gallons) onto the card’s microchip.

ii.  Card Tapping & Balance Update: The user places or slides the IC card over the meter’s induction zone. The meter reads the encrypted token, updates its memory, and adds the newly bought credits to its current balance. At the same moment, the meter pushes the current battery level and diagnostic alerts back onto the card to upload to the utility during the next refill.

iii. Sensing & Automatic Valve Isolation: As water flows through the line, a high-precision pulse or ultrasonic sensor tracks consumption, subtracting it from the balance. If the credit balance runs low, an integrated LCD panel sounds a warning alarm. If the balance hits absolute zero, a brief electrical pulse triggers the low-power magnetic latching ball valve to seal shut.

III. Key Advantages & Hardware Features

• Immunity to Signal Dead Zones: Water meters are frequently installed in concrete underground pits, deep utility basements, or outdoor metal boxes where cellular (4G/NB-IoT) or Wi-Fi signals cannot penetrate. IC card meters require no network to function, avoiding ongoing cellular data fees or signal drops.

• Robust Waterproof Design: Premium IC card meters feature an IP68-rated waterproof casing. The electronic motherboard and internal battery are entirely sealed inside a resin-filled compartment, meaning the unit can continue operating normally even if it is completely submerged in a flooded meter pit.
• Anti-Tamper & Maintenance Protection: The internal microcontroller constantly monitors for interference. If a user attempts to bypass the meter with a strong magnet or detach the casing, the internal valve immediately locks shut and will not reopen until a specialized master maintenance card is applied.
• Anti-Locking Valve Cycles: To prevent the motorized ball valve from seizing due to pipe scaling or mineral buildup from stagnant water, the internal system runs an automatic self-cleaning cycle once or twice a month, briefly spinning the valve open and closed.

IV. Main Technical Parameters of RFID Prepaid Water Meter

V. The main technical parameters of RFID Prepaid Water Meter