Electromagnetic flowmeter If the measured medium is relatively dirty for a long time, the electromagnetic flowmeter will produce fouling on the electrode after working for a period of time. When the conductivity of the fouling substance is different from the conductivity of the measured medium, measurement error will occur. The adhesion of sludge and oil to the electrodes will also cause the instrument output to oscillate and drift. Therefore, in this case we need to regularly maintain and clean the electromagnetic flowmeter electrodes.
1. For inorganic pollution, the electrode can be immersed in 0.1 mol/L dilute hydrochloric acid for 30 minutes, washed with pure water, and immersed in 3.5 MOL/L potassium chloride solution for 6 hours before use.
2, 4% hydrogen fluoride solution immersed for 3 ~ 5s, removed with distilled water, then soaked in 0.1mol / L hydrochloric acid solution for several hours, rinsed with distilled water, calibration.
3. The surface of platinum is seriously polluted to form an oxide film. The surface of platinum or gold can be polished with toothpaste, then washed with pure water, and then immersed in 3.5MOL/L potassium chloride solution for 6 hours.
4, after rinsed with pure water and oils dirt contamination film, available detergent platinum or gold surface, and then after 6 hours immersion 3.5MOL / L potassium chloride solution by soaking.OEM & ODM Disposable Vape
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