Introduction:

As the basic infrastructure for interactive communication between users and water companies, NB IoT smart water meters can achieve functions such as data storage, data transmission, real-time monitoring, and data analysis, thereby innovating and developing in meter reading, charging, management, service, and improving efficiency. In addition, with the establishment of big data platforms for water supply enterprises and the continuous improvement and upgrading of customer service and business systems, it is possible to gradually push information such as water usage, water bills, and abnormal water usage to users, guiding them to use water scientifically and save water.

Technical parameters of NB IoT smart water meter:

(1) Ultra low power NB IoT wireless remote transmission, no need for relay or concentrator support;

(2) Dual pulse measurement, anti magnetic interference;

(3) Support customization of third-party communication protocols;

(4) Support remote on/off valve operation;

(5) Caliber: DN15, DN20, DN25

(6) Prepayment function: WeChat and Alipay recharge and payment are supported;

(7) Working voltage: 3.6V (typical value)

(8) Static current: ≤ 10uA

(9) Measurement method: Double reed tube measurement

(10) Reporting time: ≤ 10S (may vary depending on network conditions)

Advantages of NB IoT smart water meter:

(1) Adopting telecom industrial grade SIM cards (patch type), resistant to high and low temperatures (-40 ° C -+105 ° C), anti vibration (20HZ-2000HZ), and read/write cycles (500000 times);

(2) Remote reading: Proactively report readings on a periodic basis;

(3) Remote valve control: capable of remotely closing and opening valves;

(4) Prepaid: Supports prepaid and pre order quantities, and closes the valve for overdue payments;

(5) Warning system: Alarm prompts such as battery undervoltage, abnormal measurement, pre order quantity, and prepaid usage reaching threshold;

(6) Internal/External Antennas: Supports internal/external antennas, stable and reliable signals, achieving full coverage without blind spots;

(7) High sampling accuracy: Based on our module photoelectric, Hall, reed switch, and magnetic switch sampling, the water meter remote transmission has a reading accuracy of 99.99%.

NB IoT smart water meter price reference:

1. DN15 iron shell: 100 yuan DN15 copper shell: 150 yuan

2. DN20 iron shell: 180 yuan DN20 copper shell: 260 yuan

3. DN25 iron shell: 220 yuan DN30 copper shell: 300 yuan

Installation method of NB IoT smart water meter:

(1) Horizontal installation, with the surface facing upwards, the direction of the arrow on the case is the same as the direction of the water flow; The installation location should prevent exposure to sunlight, flooding, freezing, and pollution, and facilitate disassembly and meter reading. When installing a new pipeline, it is necessary to wash away the sand, gravel, hemp fibers, and other debris inside the pipeline before installing the water meter to avoid water meter malfunction.

(2) Valves should be installed upstream and downstream of the water meter, and they should be fully opened when in use.

(3) Necessary straight pipe sections or equivalent rectifiers should be installed upstream and downstream of the water meter, and the length of the upstream straight pipe section should not be less than 10D. The length of the downstream straight pipe section shall not be less than 5D (D is the nominal diameter of the water meter). For the vortex phenomenon caused by bent pipes or centrifugal pumps, a rectifier must be installed before the straight pipe section.

(4) When installing the water meter, it should be noted that the outlet of the downstream pipeline of the water meter should be at least 0.5m higher than the water meter. Due to insufficient water flow in the pipeline, the waterproof meter caused incorrect measurement.

(5) The water meter has excellent anti clogging performance, but is sensitive to sediment and weeds in the pipeline. It should be prevented as much as possible during use; If there is sediment and weeds in the pipeline, they should be cleaned up in practice, otherwise it will affect the normal measurement of the water meter.