Electromagnetic flowmeter coefficient adjustment method

Case introduction

1. Why do we need to adjust the flowmeter coefficient of the electromagnetic flowmeter?

Electromagnetic flowmeter is a kind of flowmeter widely used in industrial production. Its advantage is that it is not easily affected by fluid materials and temperature, and it has a long service life. However, electromagnetic flowmeters may still have errors due to improper installation, inaccurate pipe diameters, or inappropriate distances between the sensing electrode and the measurement liquid, which requires us to adjust the flowmeter coefficient.

2. How to adjust the flowmeter coefficient of the electromagnetic flowmeter?

1. Calibrate the flow meter coefficient: First, we need to find the flow medium with known flow rate, and compare it with the standard measuring instrument by setting the corresponding flow value to obtain the actual flow value of the electromagnetic flowmeter. Calibrate the appropriate flowmeter coefficient for the electromagnetic flowmeter by calculating the error between the actual flow value and the set value.

2. Adjust the pipe diameter: If the error of the electromagnetic flowmeter is large, it may be caused by inaccurate pipe diameter. We can change the pipeline geometry by adding a pipeline expander or adjusting the pipeline diameter to achieve the purpose of adjusting the electromagnetic flowmeter error.

3. If the electromagnetic flowmeter is inaccurate, do I need to adjust the flowmeter coefficient?

If an error occurs during the use of an electromagnetic flowmeter, first determine whether it is due to a problem with the equipment itself or other external reasons such as pipes and media. If the problem is with the equipment itself, then the flow meter must be adjusted rather than relying on other methods to cover up the error. Therefore, when the electromagnetic flowmeter is inaccurate, we should adjust the flowmeter coefficient in time.

Through the introduction of this article, we understand the adjustment method of the electromagnetic flowmeter and why it is necessary to adjust the flowmeter coefficient. If the electromagnetic flowmeter is inaccurate, we should make timely adjustments to ensure production efficiency and quality.