USA Lab USA-UC-30L, Manual

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Operation Instructions:
① Load cleaning fluid into the tank and connect the power supply (which shall be grounded
reliably). After power-on, current actual temperature is displayed and the default
temperature is 20℃. The ultrasound wave operating time is 99 minutes by default.
② Adjustment of ultrasound operating duration: Press time setting button, one push to
increase one minute; long press it to increase fast, in a loop of 1-99 minutes.
③ Adjustment of operating temperature: Press temperature setting button, one push to
increase one minute; long press it to increase fast, in a loop of 1-80 degree.
④ After target temperature is set properly, press heating ON/OFF button to start heating tank
(heating system is started and heating indicator lamp turns on when target temperature
is higher than current actual temperature; heating system is stopped when target
temperature is lower than current actual temperature), and press it again to stop heating.
⑤ After operating duration is set properly, press timer ON/OFF button to start operation
and the operating indicator lamp turns on; press the button again to stop operation and
operating indicator lamp goes out.
8. Factors influencing performance
① Ultrasonic power density: Higher power density results in better cleaning performance and
higher cleaning speed. Higher power density is appropriate for cleaning of work piece with
stubborn dirt, and lower power density is suitable for any precision work piece (generally
ultrasonic power density ranges between 0.01-0.02w/ml).
② Ultrasonic Frequency: Lower frequency results in better cavitation performance. Higher
frequency contributes to better refraction/ reflection performance. Lower frequency should
be applied for cleaning of simple surface while higher frequency for cleaning of complex
surface with deep or inaccessible hole. (80KHz, 120KHz)
③ Cleaning temperature: Ultrasound wave will present the best cavitation performance at a
temperature range between 40℃~50℃. Higher cleaning temperature facilitates breakdown
of dirt, while a temperature above 70℃~80℃ may impair effect of ultrasound wave and
deteriorate cleaning performance.
④ Cleaning duration: Longer cleaning duration presents better cleaning performance (except
for special material).
⑤ Other influential factors include type and properties of cleaning fluid and the dirt to be
removed.