The large-diameter IC card intelligent water meter (butterfly valve) - YS series is designed and manufactured jointly by Lianyungang Tengyue Electronic Technology Co., Ltd. and well-known domestic and foreign enterprises in accordance with the technical requirements of CJ/T133-2012 Chinese Urban Construction Industry Standard "IC Card Cold Water Meter" and Chinese National Standard GB/T778-2007 "Drinking Cold Water Meter and Hot Water Meter".

1. Maximum allowable error:

1.1. The maximum allowable error from the low flow zone including the minimum flow to the boundary flow (excluding) is ± 5%.

1.2. From the high flow zone including the boundary flow to the overload flow (inclusive), when the water temperature is ≤ 30 ° C, the maximum allowable error is ± 2%; When the water temperature is greater than 30 ° C, the maximum allowable error is ± 3%.

2. Working temperature: Cold water meter: (0.1-30) ℃; Hot water meter: (0.1-90) ℃.

3. Work pressure: ≤ 1.0MPa ； Pressure loss: ≤ 0.063MPa.

4. Installation environment: Class B.

5. Electromagnetic environment: E1- Residential, commercial, and light industrial.

6. Working current: Static (10-13) uA.

7. Working environment temperature: (5-55) ℃.

8. Sensitivity level of flow profile: U10、D5。

1. When using this form, users should go to the business office of the management department to open an account, file a record, and purchase a user card for the corresponding water volume. The user card must be used on the designated form for the first time, otherwise it may cause unnecessary losses;

2. Place the RF card in the card swiping area, and the LCD display "rd IC" indicates that the card is being read; Display 'END' to indicate successful card swiping operation; If 'Err XX' is displayed, it may indicate a problem. Please reposition the card and try again. If there are still issues, please contact the management department; (Swiping the card will be accompanied by a flashing light prompt)

3. When the remaining amount in the table is less than the set alarm value (which can be set by the management department), the valve will close and an alarm will be triggered. At the same time, a recharge request sign will be displayed to remind the user to recharge in a timely manner. After the user discovers that the valve is closed, they can swipe their user card to open the valve. When the remaining amount decreases to zero, the valve will automatically close, and the user needs to purchase a recharge again before opening the valve;

4. If the user card is lost, the corresponding card replacement procedures must be handled at the management department, and the original user card will be invalidated at the same time;

5. When it is necessary to change the table, use the "information transfer card" to configure the information into the new table, and the user card can continue to be used.

1. The selection of water meter diameter should be based on the diameter of the pipeline at the installation location and the flow rate being equal to or less than the commonly used flow rate of the water meter.

2. The installation location should be chosen in a place that is convenient for disassembly and easy to read the water meter measurement data. It should avoid exposure to sunlight, rain, water, pollution, and environments with external magnetic interference. During periods of freezing, in addition to wrapping the water meter and water pipe, when not in use, close the inlet valve of the water meter and open the outlet valve and faucet to prevent damage to the water meter due to freezing expansion.

3. During installation (especially for new pipe sections), it is necessary to avoid introducing debris such as hemp thread, tape, sand and gravel into the water meter pipeline, which may cause measurement failures of the water meter.

4. The water meter should be installed horizontally with the dial facing upwards, and the direction of the arrow on the watch case should be consistent with the direction of water flow in the pipeline. In order to ensure accurate measurement of the water meter and prevent vibration from affecting its service life, the water meter should be installed far away from the water pump. A flow straightening device or a straightening straight pipe section should be installed upstream of the water meter, and the length of the straightening pipe section should be greater than 5 times the diameter of the water meter.

5. If the water meter is installed at the inlet pipe of a boiler or solar water heater, it should be prevented from being damaged by backflow of hot water.

6. Installation diagram of water meter: