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This product is suitable for multi-user public water use occasions. Users can pre order water bills with their card, place the card in the card sensing area to start water supply, swipe the smart water meter to deduct the remaining amount based on usage, and remove the card to stop water supply. This system is used in conjunction with the MF1/CPU card water control system software to complete daily business management such as user file creation, account opening, sales inquiry, report statistics, and bill printing. Suitable for shower control, public water control, hot water supply and other occasions.

A multi card smart water meter is an automatic metering and settlement instrument for water supply with multiple cards, and its IC card is issued in the form of a recharge card. Any system recharge card with currency information can be used on a multi card water meter within a set range It is suitable for public water use areas, student apartments, etc., and can be used as an on-site water supply fee settlement tool. The user inserts a valid contactless recharge card into a multi card water meter, which opens the valve to supply water and deducts the water usage fee from the card in real time. After removing the recharge card, the water meter will close the valve and stop supplying water.
1、 Swipe card, use one meter, use multiple cards. Main features of water meter:
1. One meter with multiple cards: One water meter can accept different recharge cards. A recharge card is used by one user and can be used on a designated water meter. Real time deduction of amount based on water usage during use. No cost to cut off water supply.
2. Battery voltage detection function: Do not open the valve when under voltage, and do not accept recharge cards.
3. Abnormal detection function: When the water meter encounters external strong magnetic interference that affects its normal measurement, the water meter valve will close. After the magnetic interference is eliminated, the valve can be opened with a recharge card.
4. Recharge card water usage function: After entering the water usage state, each metering pulse water meter deducts the remaining amount of the recharge card by one pulse equivalent fee based on the charging unit price, and updates the current service record. When the card is withdrawn or the remaining amount is deducted to zero, or when there is an error or abnormality in reading or writing the card, the water meter will exit the water usage state.
5. Digital display function: The digital display screen of this water meter can display the remaining amount, cumulative water consumption, valve status, low battery warning, wrong card warning, etc.
6. Sealing: Using radio frequency technology for wireless transmission of information, with good sealing, it can withstand water, moisture, and human attacks.
2、 Swipe card for one meter, use multiple cards for water meter operation mode
2.1 Real time flow measurement mode
When the user uses it, place the card in the sensing area, and the water control machine displays the card balance and opens the valve to release water. The water will be charged in real-time according to the set rate, and the screen will display the card balance. Once the card is removed, the water supply will be stopped.
2.2 Flow Calculation Mode
When the user uses it, insert the card into the card slot or place it in the sensing area. The water control machine displays the card balance, deducts the current amount, and opens the valve to release water.
2.3 Meter Reading Card Data Collection
After the user consumes, the water control machine screen displays the total amount of uncollected data, and a meter reading card is created using software to collect consumption data. Place the meter reading card in the sensing area, and when the screen of the water control machine displays - PASS -, the collection is complete. The screen displays 0:00.
3、 Technical parameters of water control machine
3.1 Card type: Cards that comply with Mifare standards;
3.2 Operating distance: 50mm;
3.3 Operating frequency: 13.56MHz;
3.4 Card reading time:<0.3 seconds;
3.5 Operating voltage: 12v;
3.6 Environmental temperature: 0 ℃ -100 ℃;
3.7 Output control mode: 12V 1A;
3.8 Card Issuance Quantity: Unlimited;
3.9 billing accuracy: 0.01 yuan/ton;
3. Accumulated total consumption of A: 9999.99;
3. B can set the maximum consumption amount and frequency for the current day and month;
4、 Installation instructions and precautions for water control machine
4.1 The water control machine has an inner diameter of 15 (4 pipes), please pay attention to the direction of the inlet end during installation;
During installation, please try to place the water control machine horizontally as much as possible to avoid inaccurate billing. It can also be placed vertically, and some errors are generally acceptable;
4.3 The rated power of the water control machine is 12W, and the rated power supply is 12V, 1A;
4.4 Can be used in both cold and hot water environments;