Split electromagnetic flowmeter dirty cleaning method

If the medium measured by the split electromagnetic flowmeter is relatively dirty for a long time, scaling will occur on the electrodes after the electromagnetic flowmeter has been working for a period of time. When the conductivity of the scaling material is different from the conductivity of the measured medium, measurement errors will occur. The attachment of sludge and oil to the electrode will also cause the instrument output to swing and drift. Therefore, in this case, we need to regularly maintain and clean the electromagnetic flowmeter electrodes.

The measurement of the split electromagnetic flowmeter is not affected by changes in fluid density, viscosity, temperature, pressure and conductivity; it is the only flowing part in the measurement tube, no pressure loss, and low requirements for straight pipe sections; sensor lining and electrodes There are many choices of materials; the converter adopts a novel excitation method, which has low power consumption, stable zero point and high accuracy. 1. For inorganic pollution, the electrode can be immersed in 0.1mol/L dilute hydrochloric acid for 30 minutes, washed with pure water, and then immersed in 3.5MOL/L potassium solution for 6 hours before use. 2. Soak in 4% hydrogen fluoride solution for 3 to 5 seconds, take out and rinse with distilled water, then soak in 0.1mol/L hydrochloric acid solution for several hours, rinse with distilled water, and calibrate. 3. If the platinum surface is seriously polluted and an oxide film is formed, you can use toothpaste to polish the platinum or gold surface, then clean it with pure water, and then immerse it in 3.5MOL/L potassium solution for 6 hours before use. 4. For organic oil stains and oil film pollution, you can use detergent to clean the platinum or gold surface, rinse it with pure water, and then immerse it in 3.5MOL/L potassium solution for 6 hours before use.