Common faults and treatment methods of electromagnetic flowmeters

The failure of the electromagnetic flowmeter is a very troublesome thing. Small problems are easy to solve, but there is no clue when encountering major problems. Below, we list them one by one according to the common problems reported by after-sales personnel and on-site, including some solutions. The common problems that are most likely to occur at the scene mainly include the following ten types: 1. Why is the negative flow displayed on the LCD screen? Answer: The inner coil is connected reversely. Go to the setting in the meter head and change the forward flow to reverse flow. 2. I don’t have such a suitable straight pipe section at the scene, what should I do? Answer: Doing a bypass not only ensures the straight pipe section, but also facilitates later maintenance. 3. Is your accuracy for the entire flow range? Answer: This accuracy refers to the more appropriate range in the middle, and the accuracy will be slightly worse at the upper and lower limits of the range. 4. Why does the LCD screen not light up? A: First check whether the fuse at the back is broken. If it is not broken, there is a problem with the circuit board. 5. Will the value jump after the on-site connection? Answer: The electromagnetic interference in the vicinity is too strong, and no grounding treatment has been done. 6. What is the difference between one body and one body? A: One is the local display, and the split can be placed in the control room for viewing. 7. Why is there no data or inaccurate measurement of the flow meter for measuring sewage for a long time? Answer: It may be that the electrode is covered with sludge or damaged. It is recommended to maintain it regularly. 8. Why is there no reading on the flowmeter on my site? Answer: Reasons for the medium: insufficient water content, insufficient conductivity, too small flow rate or dissatisfied pipe, etc. 9. The measured value is inconsistent with the output value, what is the situation? Answer: Full tube, flow rate too low, converter damaged, over flow. 10. Can the dissatisfied tube be measured? Answer: The theory is possible, but the measurement accuracy is inaccurate and cannot meet the requirements.

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