What are the precautions for soap film flowmeters?

The soap film flow meter has no pressure loss and has a low straight pipe section requirement. It has unique adaptability to the measurement of the slurry. A reasonable choice of sensor lining and electrode material has good corrosion resistance and wear resistance. The converter adopts a novel excitation method. The power consumption is low, the zero point is stable, and the converter can be integrated with or separate from the sensor. When the soap film flow meter is started, the soap film tube is relatively dry, and the rising soap film is easily broken. It should be continuously squeezed from the suction head. Several soap films lubricate the inner wall of the soap film tube. When there are bubbles on the liquid surface of the soap film, several soap films should be used consecutively to remove the foam. If there are serious deviations in the displayed values, watch for any other factors such as unevenness of the soap film.

In order to overcome the inherent fluctuations of the gas source and ensure the accuracy of measurement and calibration, the measured or calibrated instrument flow rate shall be measured not less than three times per point. The arithmetic mean value shall be taken as the calibrated volume of each instrument's soap film tube. The calibration value, the user may not arbitrarily modify, to avoid artificial measurement error, after measuring or correcting, turn off the power supply, should remain in the soap film flow meter out of the soap film, to avoid drying the soap film attached to the soap tube tube On the impact of future measurement, in order to overcome the inherent fluctuations of the gas source, to ensure the accuracy of measurement and calibration, the measured or calibrated instrument flow rate of not less than three times per point, take its arithmetic mean, the calibration of each instrument soap film tube Volume, for the test calibration value, the user shall not arbitrarily modify to avoid artificial measurement error.