User Guide

English - 27
003-10007-99 © Midmark Corporation 2017
Step 7.) Turn the ultrasonic cleaner on for 1 minute. Remove the foil sample allowing the excess
cleaning solution to drain off the foil. Allow the sample to air dry, being careful not to wrinkle
the foil.
Step 8.) The foil surface actually submerged in the solution should be uniformly covered with a small
dimpling or pebbling effect, over the entire surface. There may also be some holes in the
foil as a result of erosion caused by the interaction between the cleaning solution, the foil,
and the ultrasonic action, but the objective of this test is to see how uniform the pebbling is,
not how many holes are in the foil. If there are a large excessive number of holes in the foil
sample, run another test decreasing the exposure time to get a better sampling of the
uniformity of the dimpling.
Results: The entire submerged area of the foil should be uniformly pebbled with tiny dimples from
the ultrasonic implosions. Areas greater than 1”diameter, the size of a quarter, that doesn’t
have pebbling, may indicate that there is a problem with the ultrasonic unit. (See photo 3)
Step 9.) If the results indicate a possible problem repeat the above steps using a new foil sample. If
the results are the same contact your service provider to have the unit evaluated / repaired.
Step 10.) If the results confirm uniform cavitation (dimpling / pebbling of the foil) throughout the tank,
label, date and file the foil test sample for future comparative purposes.
Note: the ultrasonic solutions should be removed from the tank prior to cleaning instruments,
as the solution left is foil contaminated
Photo 3: Foil test results showing uniform pebbling