product overview

The ZNSB series rechargeable IC card intelligent hot and cold water meter (including contact and non-contact) is based on a cold water meter with a transmitter as the measuring base, IC card, as a medium, is a prepaid measuring instrument composed of an electronic controller and an electric ball valve. It adopts a high-performance and high-efficiency RISC structure microcontroller on the circuit, and integrates various control circuits such as clock, LCD driver, alarm driver, pause, wake-up function, etc. of the controller into a dedicated module in a highly integrated manner, making the water meter highly anti-interference, reliable, high-precision and low-power performance. Its compact structure design and beautiful appearance are used to quantitatively supply drinking cold water flowing through the tap water pipeline. The meter automatically opens the valve and supplies water according to the amount of water purchased by the user. When the water volume reaches the alarm value or runs out, the valve is automatically closed and the water is cut off, thus achieving the goal of "buying water first, using water later". It can also record the operation status of water meters, display the operation status of water meters through computer and system management software, implement effective monitoring, change the unfavorable situation of overdue water bills and household meter reading, save manpower, material resources, and financial resources of property or water supply departments, and improve management efficiency.

This meter is particularly suitable for the renovation of old cities, the construction of intelligent communities, and the "one meter, one household" project. It is easy and convenient to install, and does not require the renovation of the original pipelines. As long as the original water meter is removed or replaced, the "one household, one card, one meter" system can be achieved. The "one household, one meter" renovation project can be widely implemented in a short period of time, saving a lot of funds for urban water network renovation.

PRODUCT FUNCTION

1. Pre order water usage: Insert the user card that matches the purchased water with the smart water meter into the smart water meter. If the remaining amount in the meter is greater than 0, the IC card smart water meter can open the valve to supply water.

2. Query function: It can query the cumulative water consumption, remaining water consumption, and current purchase water consumption.

3. Measurement and statistics: The device can automatically deduct user consumption, with a deduction of 10L for each count, and can correctly accumulate the newly purchased consumption in the card with the remaining consumption in the device. Accurately accumulate consumption figures.

4. Alarm and valve closing: When the remaining water volume is 5 cubic meters, the smart water meter will display an "alarm" prompt and close the valve, reminding the user to purchase water in a timely manner. Then, the user card paired with the smart water meter can be brought close to the smart water meter before the valve can be reopened until the water volume reaches zero, and the IC card smart water meter will automatically close the valve. The 'alarm' disappears when the re purchased water volume exceeds 5m3.

5. Function card recognition: When a valid user card or function card is inserted into the IC card smart water meter, the water meter can prompt the current date and read the data from the card into the meter for normal operation. When illegal or scrapped cards are inserted into the IC card smart water meter or other operation errors occur, the smart water meter will sound an alarm and display the "error" character.

6. Anti magnetic function: When a magnet with a magnetic induction intensity of ≤ 0.15T approaches the smart water meter, the IC card smart water meter can work normally. When the water meter is artificially damaged by strong magnetic force (>0.15T) or other means, the water meter will display the characters "stolen" and "closed valve", and the valve will be closed. When the magnetic field leaves, the water meter will open the valve to supply water, and the characters "stolen" and "closed valve" will disappear.

7. Anti theft function: The water meter adopts a fully sealed installation and is equipped with an anti damage card seal. If it is disassembled without authorization, the water meter card seal will be damaged.

8. Undervoltage protection function: When the power supply voltage is lower than the set value, the IC card smart water meter displays the "undervoltage" character and closes the valve within 1 minute. The water meter rechecks the battery. If the voltage has been charged above the set value, the "undervoltage" character disappears and the valve is opened to supply water after 5 minutes.

9. Charging function: When the power supply is under voltage, the water meter will close the charging switch, allowing charging. When the charger is plugged in, the charging indicator light will turn green. When the power supply is fully charged, the water meter system will disconnect the charging switch and prohibit charging. The charging indicator green light of the charger is off.

10. Valve self checking function: It has the characteristics of low pressure loss, low wear, low power consumption, and no scaling, achieving the purpose of rust prevention and blockage prevention. It performs monthly self checking of the on/off valve.

Product Features

1. The unique design of the "Chunchao" brand ZNSB series IC card smart water meter is a patent with national appearance application.

2. The design of our company's rechargeable smart water meter has a national appearance application patent. It uses a 3.6V rechargeable lithium battery imported from Japan, with a long service life (the control circuit uses imported low-power components). It is corrosion-resistant, leak free, and has overcharge, overdischarge, overcurrent, and short-circuit protection functions. Compared with water meters that use ordinary batteries or lithium-ion batteries without charging functions as power sources, it is both environmentally friendly and safe, reduces the cost increase for users due to battery replacement, and also avoids data loss caused by battery replacement.

3. Adopting a connected structure with a base valve, compared with the commonly used split structure, it has high concentricity, less pressure loss, and accurate measurement.

4. Electric ball valves are driven by metal gears. Compared to the resin materials commonly used by manufacturers, it is more wear-resistant and has a longer service life.

5. Adopt wet base table. Compared with dry water meters, it effectively prevents the omission of pulse signals, has high accuracy, stable performance, and small errors.

6. The shell is made of polycarbonate material imported from Japan. Anti exposure to sunlight and rain, anti smashing of debris, anti shattering of glass, with strong impact resistance, anti-aging, corrosion resistance, and durability.

7. Each control unit in this table adopts advanced fully sealed technology, which is waterproof, moisture-proof, and has strong anti-interference ability.

TECHNICAL INDEX

1. Working power supply: rechargeable lithium-ion battery 3.6V;

2. Static working current: 5uA;

3. Normal operating current: ≤ 20uA;

4. IC card lifespan:>100000 cycles;

5. Working environment: 0 ℃~30 ℃;

6. Maximum reading: 99999.99 m ³;

7. Work pressure: ≤ 1.0Mpa

8. Read write distance: ≤ 20mm

9. Read and write time:<3S

10. Valve closing time: ≤ 4S

11. Cold water gauge water temperature: 0-30 ° C Hot water gauge water temperature: 0-90 ° C

12. Main technical parameters

Indication error limit:

(1). From including the minimum flow to excluding the boundary flow in the low zone ± 5%.

(2). From including boundary flow to high zone including overload flow, ± 2%.

External dimensions and weight