What is an ultrasonic 'foil test'?
Bill Pilkington
Last Update a year ago
If you feel your ultrasonic cleaner is not cleaning properly you can perform a 'foil test'. This is a simple and quick way to test if your tank is working correctly.
Set your tank to its correct operating temperature and add any solution and degas the fluid.
Suspend a piece of baking foil in the tank and switch on the ultrasonic power. After around 1-2 minutes, inspect the foil. If the cleaner is operating correctly the foil should be perforated and wrinkled.