The external clamp type ultrasonic flowmeter is easy to use and widely used by users. However, due to improper installation or improper debugging, the phenomenon of inaccurate reading of the flowmeter occurs from time to time. How do we perform self-inspection under normal circumstances? This article is provided by Jiangsu Detu Instrument Co., Ltd. , please indicate the source! !
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1. Due to paint outside the pipe, rust is not removed. Remove the pipe again and install the sensor.
2. The uneven surface of the pipe or the ultrasonic flowmeter is installed at the welding seam. The solution to this situation: The pipe is abraded or away from the weld.
3. The roundness of the pipe is not good, the inner surface is not smooth, and there is a pipe-type structure. This may happen if the pipe is a cast iron pipe. Solution: Select a place where the inner surface of the pipe is smooth or where the inner lining is located.
4. Measured medium is pure or suspended solution is too low solution: use other types of suitable instruments.
5. The glass fibers should be removed when the sensor is installed in the glass fiber pipe.
6. The sensor is mounted on the sleeve and weakens the ultrasonic signal. The sensor should be moved to the unsleeved pipe section.
7. The coupling between the sensor and the pipeline is not good, there will be gaps or bubbles in the coupling surface. The couplant should be reinstalled.
The above situation is based on the premise that the sensor is good, the flow rate is low or there is no flow rate, the sensor is damaged or there is no electricity or other reasons are different, please contact the company for details.
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The reason for the inaccurate reading of external clamp ultrasonic flowmeter and its solution
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