Analysis on the Reasons of Inaccurate Reading of External Clamping Ultrasonic Flowmeter

With regard to the convenient application of the external clamp ultrasonic flowmeter, it is favored by the majority of users, but due to improper installation or improper debugging and other reasons, the phenomenon of inaccurate flowmeter readings occurs from time to time. So how do we carry out self-examination under normal circumstances? 1. The paint and rust on the outside of the pipeline have not been cleaned up. Solution: Re-clear the pipeline and install the sensor. 2. With regard to the convenient application of external clamp-on ultrasonic flowmeters, it is favored by the majority of users. However, due to improper installation or improper debugging and other reasons, the phenomenon of inaccurate flowmeter readings occurs from time to time. So how do we carry out self-examination under normal circumstances? 1. Because the paint and rust on the outside of the pipeline have not been cleaned up. Solution: Re-clear the pipeline and install the sensor. 2. The pipeline surface is uneven or the ultrasonic flowmeter is installed at the welding seam. Solution: grind the pipe flat or away from the weld. 3. The roundness of the pipe is not good, the inner surface is not smooth, and there is pipe lining type fouling. If the pipe is a cast iron pipe, this may happen. Solution: Choose a place where the inner surface of the pipe material or lining is smooth, such as steel pipe. 4. The measured medium is pure or solid suspended matter is too low. Solution: Use other types of suitable instruments. 5. The sensor is installed on the fiberglass pipe. Solution: Remove the glass fiber. 6. The sensor is installed on the casing, it will weaken the ultrasonic signal. Solution: Move the sensor to the pipe section without casing. 7. The sensor is not well coupled with the pipeline, and there are gaps or bubbles on the coupling surface. Solution: reinstall the couplant. The above situation is based on the premise that the sensor is good, the flow rate is low or there is no flow rate. If the sensor is damaged or not powered on and other reasons are different, please contact the company's technical solution for details.