Technical characteristics of electromagnetic flowmeter

The electromagnetic flowmeter produced by Supmea Automation Technology Co., Ltd. has high measurement accuracy and reliable operation because the measurement results have nothing to do with the physical parameters of the liquid such as pressure, temperature, conductivity, etc. There are no flow obstructions in the measuring tube, so there is no additional pressure loss, that is, there is no additional water pressure loss for tap water measurement. In electromagnetic flowmeters, only the pipes and electrodes are in contact with the liquid being measured. Therefore, as long as the electrode materials are properly selected, the corrosion resistance and wear resistance requirements can be met. It has the characteristics of long service life and low maintenance requirements. It can measure the flow rate of fluid in forward and reverse directions.

The output signal mode is relatively flexible. There are pulse, current, frequency and other methods. 3.2 Requirements for the use and installation of electromagnetic flowmeters ① The upstream pipeline of the electromagnetic flowmeter has a straight pipe section with a length of at least 5 times the pipe diameter, and its downstream pipe has a straight pipe section with a length of at least 3 times the pipe diameter. If conditions permit, relax the length of the straight pipe in front of the flow meter to more than 10 times the pipe diameter. ② During the installation of the electromagnetic flowmeter, the sensor grounding ring must be reliably grounded, and the grounding resistance must not be greater than 10Ω. ③ When selecting the use environment, pay attention to avoid external electromagnetic interference, especially interference from power frequency electromagnetic fields. ④ For valves installed outside the front distance in the pipeline upstream of the flow meter, especially in situations where the flow characteristics are seriously affected such as turbine flow meter butterfly valves or right-angle elbows, a rectifier should be installed in a straight pipe 5 to 10 times the pipe diameter upstream of the flow meter. To achieve the purpose of stabilizing the flow pattern of water flow and improving measurement accuracy.