Working principle of anti-corrosion sewage flowmeter:

Anti corrosion sewage flowmeterThe working principle is based on Faraday's law of electromagnetic induction. In an electromagnetic flowmeter, the conductive medium inside the measuring tube is equivalent to a conductive metal rod in Faraday's test, and the two electromagnetic coils at the upper and lower ends generate a constant magnetic field. When a conductive medium flows through, an induced voltage is generated. The induced voltage generated by measuring the two electrodes inside the pipeline. The measuring pipeline achieves electromagnetic isolation from the fluid and measuring electrode through non-conductive lining (rubber, Teflon, etc.), as shown in the figure.

Anti corrosion sewage flowmeterAdvantages and unique selling points:

1. The most important component of the sensor - the coil - is designed and rigorously tested to ensure the measurement accuracy of the product

2. The signal electrode undergoes thorough electrostatic shielding treatment to ensure that small signals are not interfered by the coil and to guarantee measurement accuracy at low flow rates

3. The coil is isolated from the outside world to ensure its long-term insulation strength, which in turn guarantees the long-term measurement accuracy of the sensor

4. All welding processes of the sensor are carried out using argon arc welding technology. Although the cost is high, it can ensure the reliability of welding (welding is the main production process of the sensor), especially the last welding process after installing the coil. Using argon arc welding technology can ensure that the installed coil is not damaged

5. Adopting a grounding electrode structure to form a balanced electrode plane ensures that the entire process of measuring the average speed is limited to the balanced electrode plane, which can effectively eliminate electrical noise interference and provide accurate measurement results

6. Adopt customized double-layer shielded cables

7. Programmable low-frequency rectangular wave excitation improves the stability of flow measurement and reduces power loss

8. High frequency excitation is used for measuring special media (such as slurry) to eliminate clutter interference

9. Adopting a 16 bit embedded microprocessor, it has fast computing speed and high accuracy

10. All digital processing, strong anti-interference ability, reliable measurement, high accuracy

11. Ultra low EMI switching power supply, suitable for a wide range of power supply voltage changes, with good EMC resistance performance

12. Complete all functional designs with a single circuit board, using SMD devices and surface mount SMT (SMT) technology for high circuit reliability

13. High definition backlit Chinese LCD display, displaying cumulative flow rate, instantaneous flow rate, flow percentage, etc

14. Menu operation, easy to use, simple to operate, easy to learn and understand

15. Bidirectional measurement system, with three integrators inside that can display forward cumulative quantity, reverse cumulative quantity, and differential cumulative quantity respectively

16. Equipped with self checking and self diagnostic functions, and displayed on the screen

17. Unique lightning protection design

Anti corrosion sewage flowmeterSelect electrode materials based on the corrosiveness of the tested medium.

Anti corrosion sewage flowmeterSelect lining materials based on the corrosiveness, wear resistance, and temperature of the tested medium.