Website: www.shuibiaojiage.com www.bjshuibiao.com Nanchang Smart IC Card Water Meter Sensor: A household smart card sensor is installed below the dial in the counting mechanism of the water meter. This sensor rotates synchronously with the counting gear, and the household smart card information stored in the smart card sensor is completely synchronized with the mechanical reading of the water meter, forming a specific mathematical function relationship. At the water meter collection terminal, using A/D conversion, the household smart card information is directly displayed as the water meter reading. (1) The built-in remote display system installs a sensor on the gear side of the water meter's flat end. A sensor is installed on the water meter drive bracket. When the gear rotates once, the sensor emits a signal. Once the signal is received by the sensor, it is transmitted through wires to the circuit board inside the display calculation part, where the IC chip on the circuit board analyzes the signal to display the reading. This household smart card water meter is an early type, so its design is not very mature because it requires all sensing and sensing components to be installed inside the water meter. The first drawback is that the household smart card components are not suitable for long-term operation in humid environments. Therefore, over time, the household smart card components may short-circuit or become damaged; additionally, the sensor and sensor must be turned on the gear and drive bracket, making it impossible to remove the water meter core for calibration or replacement. This presents significant difficulties in production and processing, and this system is certainly not suitable for wet water meters, as high process requirements lead to expensive costs, which have prevented widespread use. (2) Single Head External Remote Display System The single-head external remote display system is a re-improvement and redesign based on the shortcomings of the built-in remote display system. Its main feature is that most of the household smart card components are installed externally on the water meter, fundamentally improving the problems that exist during production and use. The designer modifies the observation glass of the ordinary water meter into an observation glass with an internally packaged sensor, and installs a reed switch on the water meter's indicator dial, with a magnetic steel installed on the water meter's pointer. During normal use, the pointer rotates continuously, and each time the magnetic steel passes the sensing point, the reed switch closes once to emit a signal. The sensor inside the observation glass of the water meter receives the signal, which is then transmitted through external wires to the IC chip of the display part for analysis, and finally displayed on the LCD screen. The meter reader only needs to connect the meter reading device with the transmitting device, and the reading work can be completed in just a few seconds.

Nanchang Smart IC Card Water Meter Main Performance Parameters and Dimensions Double Power Base Meter, Pure Water Base Meter Orders Need Special Instructions Specific Parameters:
1. Working Power Supply: Rechargeable Lithium-Ion Battery;
2. Static Working Current: 5uA;
3. Normal Working Current: ≤20uA;
4. One Meter Multi-Card Lifespan: >100,000 times;
5. Working Environment: 0℃～40℃ (Cold Water); 0℃∽95℃ (Hot Water)
6. Maximum Reading: 99999.99 m3;
7. Working Pressure: ≤1.0Mpa
8. Read/Write Distance: ≤20mm
9. Read/Write Time: <3S
10. Valve Closing Time: ≤7S Major Features of Daxing Household Smart IC Card Water Meter:
1. Uses a vertical design, meaning that the Yantai household smart card water meter has no exposed electrodes, offering good moisture resistance and ease of use.
2. User cards are encrypted with dual keys, one card, one key.
3. Features one card to one meter or one card to multiple meters.