Foil test on the ultrasonic cleaner – simple functional test
An ultrasonic cleaner is a precise cleaning device used in a wide variety of industries—from laboratories and workshops to medical facilities. To ensure your device's reliable operation, we recommend regularly performing the so-called film test . This simple procedure quickly and reliably demonstrates whether the bath's ultrasonic performance is functioning correctly.
Why a foil test is important
The performance of an ultrasonic device depends on the even distribution of cavitation. Over time, or due to defects, the ultrasonic waves may no longer reach the desired intensity. The foil test helps detect malfunctions early on – during initial commissioning and at regular intervals thereafter .
How to perform the foil test
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Fill water: Fill the ultrasonic tank with water.
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Degassing: Allow the water to degas for approximately 10 minutes to achieve optimal ultrasonic performance.
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Prepare the foil: Cut a piece of standard household aluminum foil the size of the tub.
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Start the sonication: Turn on the device and place the foil in the liquid. After about 1 minute, visible changes should occur.
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Check film: Remove the film, dry it carefully and check for perforations or holes.
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Compare results: Document the slide with the date, device serial number, and initials. A comparison with previous tests will show whether performance remains consistent.
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Cleaning: Rinse the ultrasonic tank thoroughly after the test and remove all film residue.
What the result says
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Clear hole formation or perforations: Your device is working properly.
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No or weak perforations: This should be checked by a specialist service to avoid damage or loss of performance.
This way you can be sure at all times that your ultrasonic bath is working efficiently.
Conclusion
The foil test is a quick, cost-effective, and reliable way to check the functionality of your ultrasonic cleaner. Performed regularly, it protects against performance degradation, extends the lifespan of your device, and ensures that your cleaning processes deliver optimal results every time.
