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Since intelligent electromagnetic flowmeters operate on the principle of Faraday’s law of electromagnetic induction, and provided they are properly selected and installed based on the properties of the medium, the failure rate is generally very low. However, damage caused by errors in operation cannot be entirely avoided. Next, we will summarize our experience in work and provide some solutions to common faults that occur with certain electromagnetic flowmeters in daily use. 1. The LCD display on the meter shows no image and there is no signal output. Fault analysis for electromagnetic flowmeters: 1. Check whether the power supply is properly connected or if there is a problem with the power circuit. 2. Check whether the output signal wires are properly connected or if the connections are loose ； 3. The grounding of the flow meter, measurement pipeline, and measured medium is unreliable ； 4. The measuring medium does not completely fill the pipeline ； 5. There are oxides or deposits on the electrode surface; clean the electrode ； 6. Fault in the measurement circuit. II. The LCD display is not clear and the output fluctuates. Fault analysis of electromagnetic flowmeters: 1. Adjust the potentiometer to increase contrast in a clockwise direction ； 2. The fluid itself is passive or pulsating ； 3. The pipeline is not filled with liquid or the liquid contains bubbles ； 4. External electromagnetic interference ； 5. Reasons related to the physical properties of the liquid (uneven conductivity or presence of impurities) 6. Contaminated or corroded electrodes ； 7. The grounding of the flow meter, measurement pipeline, and measured medium is unreliable ； III. Unstable zero point – Fault analysis of electromagnetic flowmeters ； 1. The pipeline is not filled with liquid or the liquid contains bubbles ； 2. There is slight flow within the pipeline. 3. Inadequate grounding, with interference from external electromagnetic noise ； 4. Reasons related to the physical properties of the liquid (uneven conductivity or presence of impurities) ； 5. Decrease in insulation of the signal circuit ； IV. The values displayed in the table headers do not match the actual values. Fault analysis: For electromagnetic flowmeters, 1. The sensor settings are incorrect ； 2. The sensor is installed in the wrong position; the tube is not filled completely or there are bubbles in the liquid ； 3. The length of the straight sections upstream and downstream of the sensor is insufficient ； 4. The tube being measured contains other branches that affect the measurement ； 5. The signal cable was not handled properly, or the insulation of the cable deteriorated during use ； V. Output signal over-fullness value: Fault analysis of electromagnetic flowmeters: 1. Check whether there is liquid connection between the sensor electrodes ； 2. Check whether the cable is disconnected or there are wiring errors ； 3. The rear instrument is not electrically isolated or the setting is incorrect. For more information, please visit the company’s official website at http://www.yb1518.com/. Please retain this link when reproducing the content! http://www.yb1518.com/UploadFiles/2012717174126829.jpg