Ultrasonic level indicator has been extensively used and required by diverse industrial sectors in the USA and all over the world. The demand has increased primarily for the reason that there are no health risks attached with it and the smart qualities it has. However, the ultrasonic level sensor cannot be used by everyone since it is different from the other types of level sensors. It needs a smart mind to understand it and take complete advantage of its stout technology.

In view of the fact that the ultrasonic device works on the principal of ultrasonic sound waves, sound waves travel through air using it as a medium. They emerge from the transducer, by passes the walls of the container, touches the liquid object and bounce following the same path.  In this way it determines the liquid level. However, it is always suggested to read the measurement as + or – a few mms. This variation is nothing to worry about as it is equal to just a few drops. There are certain factors that may cause a slight change in the liquid level measuring ability of the device.

When using the ultrasonic liquid level indicator, always maintain the standard distance between the transducer and the liquid. If the liquid is below or above the standard range, the readings will not be accurate. Gas bubbles or gas foam can also cause the level to change and the ultrasonic waves will bounce back quicker than they ought to. But don’t worry; these factors can be easily removed by using some smart techniques.

• Temperature change can cause the air to become denser or lighter. This effect will change the speed of the ultrasonic waves and the change in speed will result in a different reading. Moreover, temperature also affects liquids, for instance high temperature will cause water to emanate steam. Extremely low temperature will cause ice to form which will result in causing variations in ultrasonic readings. To compensate this limitation, the modern ultrasonic devices come with advanced sensors. They will automatically adjust to the temperature. But if you are using an old device, you might have to do it manually.
• The presence of heavy foam or dust inside the container will also cause the readings to change. Since foam is a sound absorbent, it would disturb the movement of ultrasonic waves which are actually sound waves. Make sure there are no such issues when measuring.
• Turbulence causes ripples to appear on the surface of the liquid. This is a problem most people ignore and complain of the device to go faulty. In such a situation there is no liquid level indicator which would be able to provide the best results. Shut off the motor running next to it and then try to get the level readings again.