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Electromagnetic flowmeter maintenance processing and many advantages introduction

The measuring channel of the electromagnetic flowmeter is often a smooth straight pipe through unobstructed flow detection, which is more difficult and obstructive for this purpose, and is used for measuring solid particles, or liquid-solid mixed objects of fibers, such as only pulp and sewage, sewage, etc. Wait. The electromagnetic flowmeter will not be lost due to the pressure eventually formed by the flow detected by the body. The resistance of the meter is only the resistance in the length of the pipeline. The overall effect of energy saving is more significant. For some pipes with large diameter water supply. Very good. The range of electromagnetic flowmeter measurement is very large, and the range of selected flow is also wide. Compared with other flowmeters, the requirements of the front straight pipe section will be even lower. Some models of instrument appreciation can be expanded on site according to requirements. To reduce the flow, you don't need to take it down. The overall diameter of the electromagnetic flowmeter is relatively wider than other production ratios. The flow meter will be wider, from a few millimeters to a three-meter diameter friend, and can measure the positive and negative two-way flow, basically even To measure the pulsating flow, only the pulsating flow rate can be used to light the excitation frequency. And for electromagnetic flowmeters can also be used in corrosive fluids.

Of course, electromagnetic flowmeters also have a small disadvantage, that is, liquids with relatively low conductivity, such as petroleum, cannot be measured, and gas cannot be measured. Steam has many bubbles of liquid. If it is a general-purpose electromagnetic flowmeter, it can not be used on a liquid with a relatively high temperature due to material limitations. If these types of meters are lower than the temperature of the journey, it is easy to cause damage to the insulator. How to solve and judge the fault of the electromagnetic flowmeter is also very important. Generally speaking, if the electromagnetic flow sensor is not installed correctly, it will cause a malfunction, and it is likely that emptying will occur, or the discharge of the nail into the atmosphere will eventually form a state in which the measuring tube is not full. If it is a uniform small bubble distributed in the liquid, it will basically not affect the operation of the electromagnetic flowmeter, but if the bubble becomes larger as the bubble continues to increase, then the signal of the instrument will be deprived, with the bubble coming The bigger he is, the more he will fluctuate. If the solid content of the electromagnetic flowmeter is more than the slurry, there is a possibility of noise, which eventually causes the signal to fluctuate. If it is a mixed medium, if the mixing is not uniform, the electromagnetic flowmeter will It has a big impact and signal fluctuations are a must.

At the same time, if there is a fault after the electromagnetic flowmeter has been running for a period of time, it is very likely that it is caused by a change in the environment or is hit by lightning, and an adhesion layer appears on the inner wall. If it is subjected to lightning strikes, the instrument will be damaged. Because of the high voltage and current, it is more likely to cause damage during the lightning strike. If it is the environment, it is often caused by negligent installation conditions. Once the environment changes, the operation is likely to covet new sources of interference and interfere with the normal work of the instrument. At the same time, if the inner wall is attached with dirty fluid, the meter will not work normally, and the adhesive layer will cause a short circuit in the circuit of the electrode.

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