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Description of measurement accuracy of ultrasonic flowmeter

Ultrasonic flowmeter is a non-contact measuring device. Its measuring components are free from wear and are not affected by dielectric density, dielectric constant and electrical conductivity. The measurement accuracy is high within a certain range, but it is not suitable for high temperature and high pressure. The interface has fluctuations, bubbles, foam, and dust.
1. Is the instantaneous flowmeter fluctuating?
A, the signal intensity fluctuates greatly; B, the measured fluid fluctuation itself is large;
Solution: Adjust the probe position and increase the signal strength (maintain above 3%) to ensure the signal strength is stable. If the fluid fluctuation is large, the position is not good. Re-select the point to ensure the 5D working condition after the first 10D.
2. Is the signal of the external clip type flowmeter low?
If the pipe diameter is too large, the pipe is fouled seriously, or the installation method is wrong.
Solution: For over-sized pipe and serious scaling, it is recommended to use a plug-in probe or select the “Z” type mounting method.
3. Is the signal reduced after the plug-in probe is used for a period of time?
There may be a shift in the probe or a thick scale on the probe surface.
Solution: Re-adjust the probe position and clear the probe emitting surface.
4, boot no display
Check whether the power supply attribute corresponds to the rated value of the meter and whether the fuse is blown. If the above problem is not recommended, it is recommended to send the instrument back to our company for inspection by professional technicians.
5, the instrument only has backlight after booting, no character display
This situation is generally the loss of the program chip, it is recommended to send the instrument back to our company for processing.
6. The meter cannot be used under strong interference on the spot?
The power supply has a large fluctuation range, and there are inverters or strong magnetic fields around, and the grounding wire is incorrect.
Solution: Provide a stable power supply to the instrument. The instrument is installed away from the inverter and strong magnetic field interference, and has a good grounding wire.

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