Electromagnetic flowmeters are known for their high precision, reliability, and long service life. That's why we take great care in every step of the design, material selection, process development, production, and testing. Our state-of-the-art production equipment and flow calibration systems in China ensure consistent quality in both software and hardware.
When it comes to electromagnetic flowmeters, even small mistakes during operation can lead to measurement errors. So, what are the common causes of such errors?
1. The liquid being measured may contain solid particles like powder, granules, or fibers. This can cause several issues: - Slurry noise; - Contamination of the electrode surface; - A conductive or insulating layer covering the electrode or lining; - Wear or deposition on the lining, reducing the cross-sectional area of the flow.
2. If the pipe is not fully filled with liquid due to low back pressure or improper installation, this can also lead to errors. Depending on the situation, you might see increased measurement error, fluctuating output, or even incorrect readings when gas bubbles interfere with the signal. In horizontal pipelines, if the liquid level drops below the electrodes, the meter may show a false full condition.
3. Some liquids have a tendency to crystallize, especially at lower temperatures. While the pipeline may be well-insulated, the sensor itself may not be. This can lead to deposits forming on the inner walls, affecting accuracy. To prevent this, consider using a short-tube electromagnetic flowmeter, ensuring proper insulation upstream, and making sure the sensor is easy to access for maintenance.
4. Electrodes and grounding rings must be compatible with the measured medium. Mismatched materials can lead to chemical reactions, electrochemical effects, or polarization, which can affect performance. These surface effects can reduce the lifespan of the device.
Our goal is to ensure that our electromagnetic flowmeters last more than 10 to 20 years. Every detail, from the sensor to the converter, is carefully designed and tested. We use advanced production lines dedicated to electromagnetic flowmeters in China to guarantee the long-term quality of our products.
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