Ultrasonic level gauge FAQ
　　
1. The effect of stirring on the ultrasonic level gauge:
　　
The on-site container often has agitation, and the liquid fluctuation is relatively large, which affects the measurement of the ultrasonic level gauge; in this case, the rotation speed of the agitator can be appropriately reduced, or the probe can be deviated from the stirring center; and the static tube can be installed, thereby effectively eliminating the agitator The effect of agitation on the level measurement.
　　
2. The effect of foam on the ultrasonic level gauge:
　　
In the process of measuring the liquid level with an ultrasonic level gauge, foam interference is often encountered. According to the properties, foam can be divided into four types: dry, wet, neutral and heavy.
　　
Dry foam and wet foam can reflect the ultrasonic waves back, so the ultrasonic level gauge is used to measure no effect; the neutral foam absorbs and diffuses part of the ultrasonic waves, thus weakening the reflection of the ultrasonic waves and causing the echo to be unstable. Therefore, when the surface of the medium is thick and thick, the measurement error of the ultrasonic level gauge will be large or even impossible to measure.
　　
In severely disturbed conditions, the US FLOWLINE ultrasonic level gauge can be used to shield the foam by adding a static tube. This is the du home technology of Beijing Consonson.
　　
3. The influence of steam and mist on the ultrasonic level gauge:
　　
When the working environment temperature is high, the liquid medium is prone to generate steam or mist. Since the steam is lighter than air, it floats up to the top of the tank, forming a vapor layer that absorbs and scatters the ultrasonic pulse. By adding a static tube, the effect of the vapor layer on the measurement can be reduced or weakened.
　　
4. Impact of blind zone on SF-P ultrasonic level gauge:
　　
The blind spot of the ultrasonic level gauge is just like the human eye. The blind spot is when the object is very close to the eye, but it is not clear. This distance is called a blind spot.
　　
The blind zone of the SF-P ultrasonic level gauge varies according to the range. If the range is small, the blind zone is small and the range is large, and the blind zone is large. Therefore, the high liquid level required to be measured shall not be higher than the blind spot of the ultrasonic level gauge.
　　
5. The influence of pressure and temperature on the ultrasonic level gauge:
　　
First, the speed of sound cannot propagate under vacuum, and the essence of ultrasound is a kind of sound wave, and it belongs to mechanical waves, so it cannot propagate in vacuum.
　　
Secondly, it is the temperature. Although the parameters of the ultrasonic level gauge have the maximum pressure value, the maximum pressure value will decrease correspondingly with the increase of the temperature, so pay attention to this parameter when selecting the type.
　　
In addition, for the level gauge installed outdoors, measures such as adding a sun shield can be used to reduce the influence of temperature factors.
　　
Static tube technology installation precautions: SF-P ultrasonic level gauges use Echo-Pipe technology, allowing the probe to be installed in 2"-4" metal or non-metallic conduits, without interference from the inner wall of the conduit, suitable for It is used in environments where there is agitation, foam, water vapor and clutter around the obstacles.
　　
Note the following when installing the catheter:
　　
1 Select the appropriate catheter diameter.
　　
2 requires the inside of the pipe to be smooth and free of weld seams.
　　
3 Open small holes in the blind zone to ensure the pressure inside and outside the pipe is balanced.
　　
4 The lower end of the catheter should be submerged under the lowest measuring level.
　　
5 The lower end of the catheter should be opened with a 45° oblique opening to keep the liquid flowing normally.

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