How to solve the problem of low flow rate in ultrasonic flowmeters
When the ultrasonic flowmeter shows unstable signals and inaccurate readings, many users tend to think that there is a problem with the ultrasonic flowmeter sensor. However, this is not always the case. Today, we will introduce to you the reasons why the ultrasonic flowmeter sensor is good but the flow rate is low or there is no flow rate at all.
The paint or rust on the outside of the pipeline was not cleaned up thoroughly.
2. The sensor equipment is uneven on the pipe surface or located at the weld seam.
3. The roundness of the pipe is poor, the inner and outer surfaces are not smooth, and there is scale formation on the pipe lining. If the pipe material is cast iron pipe, this situation may also occur.
4. The measured medium is a pure substance or the solid suspended matter is too low. The sensor device is installed on the fiberglass pipe.
5. If the sensor device is installed on the casing, it will weaken the ultrasonic signal.
6. The sensor is not well coupled with the pipeline, and there are gaps or bubbles on the coupling surface.
Treatment method:
1. Remove the pipeline and ultrasonic flowmeter sensor from the beginning.
2. Grind the pipe flat or away from the weld seam, select a place with smooth inner and outer surface pipe materials or linings such as steel pipes, and move the sensor to the pipe section without a casing.
3. Select other appropriate types of surfaces;
4. Remove the glass fiber and start the coupling agent from the equipment.
