Tips and Tricks for Ultrasonic Liquid Level Measurements
The users of ultrasonic liquid level indicator will be aware of the minor limitations of this level sensor that sometimes, under certain circumstances, may not be able to give correct liquid level readings. This does not come under the product’s flaws; rather it is related to the way ultrasonic waves works. To fully utilize this level sensor, you must first thoroughly understand how this device works. This device works with ultrasonic sound waves that travel from transducer to the liquid surface and emit back to the transducer, which than calculates their time and distance to measure the exact liquid level inside containers, vessels or pipelines. Factors like surface turbulence, gas bubbles, rise and fall in temperature, steam and other minor obstacles inside the vessel can greatly affect the movements of ultrasonic sound waves, which can result in incorrect readings via ultrasonic liquid level indicator. However, these minor tricks and tips can save your effort and money, and promise you full productivity and outcome with your ultrasonic level sensor.
While installing an ultrasonic level sensor, always make sure to mount it at a place perpendicular to your liquid surface, so that the waves may not experience any obstacle while travelling towards liquid surface.
Always use a temperature sensor, with ultrasonic level indicator, because any rise and fall in temperature can affect the speed of sound waves, However, if a temperature sensor is installed with transducer, it will easily compensate, and will make the desired change in ultrasonic reading, according to change in temperature.
Make sure the surface of your container/vessel is not corroded or deformed, as it may cause surface turbulence.
It is always best to install ultrasonic level sensor in a stand pipe to combat effects of gas bubbles, steam, foam and other obstacles inside the container.
If you are installing ultrasonic level sensor in a slopped or dome shaped tank, use a plastic self-aligning bulk head to let the sensor move according to liquid surface.
By using these simple tips, you can effectively get accurate readings of your liquid level every time. This is the main reason, why this simple yet robust and smart liquid level sensor is getting so much popularity in USA!