Electromagnetic flow meters may show abnormal readings during operation. Mastering basic troubleshooting methods can help restore production quickly.

1. No Flow Signal

Check that the power supply is normal, the electrodes are clean, the pipe is full of medium, and the signal cable is securely connected.

2. Large Reading Fluctuations

Check that grounding is proper, whether air bubbles are mixed into the medium, and whether equipment such as frequency converters is causing interference.

3. Unstable Zero Point

Perform zero calibration with the pipe full and the medium stationary, and check whether the sensor is affected by moisture.