USA Lab USA-UC-30L User manual

Version : 2020
Ultrasonic Cleaner
USA-UC-30L

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TABLE OF CONTENTS
Keep this manual on-hand so it can be used by all operators of the unit.
Use the unit only in the way described in this manual.
Failure to follow the instruction in this manual may cause wrong operation.
1. Principle of ultrasonic cleaning 3
2. Precautions 3
4. Specication 5
3. Product features 4
5. Scope of application 5
6. Installation and preparation 6
7. Operation instructions 6
8. Factors inuencing performance 7
9. Troubleshooting 8
10. Maintenance 9
11. Packing list 9

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1. Principle of ultrasonic cleaning
Ultrasonic cleaner generates ultrasonic frequency electricity, which is converted by energy
converter into high-frequency mechanical oscillation that is transferred to cleaning fluid.
Ultrasound wave is beamed forwards unevenly in the cleaning fluid to make the fluid vibrate
and generate tens of thousands of micro bubbles, which form and grow in the negative
pressure area where the ultrasound wave travels longitudinally and close (crush out) in positive
pressure area.
Formation, growth and quick closure of the micro bubbles is called cavitation. In cavitation,
closure of bubbles will generate instantaneous high pressure higher than 1,000 times of
atmospheric pressure, and the continuous high pressure force hits surface of the work piece
like numerous small blasts to peel off dirty on the surface and in clearance of object, and this is
how the ultrasonic cleaning machine operates.
2. Precautions
• Locate this product properly to avoid any accident resulted from children's access to it.
• This product contains dangerous voltage, so do not start it at a high-temperature or humid
location to avoid electric shock.
• This product must be operated after inject liquid, otherwise it may be burnt out or even
result in fire.
• Absolutely do not use any inflammable detergent.
• Remove any dirt in the tank after operation and any foreign matter falling into the tank
shall be taken out immediately. Keep the external surface of the machine clean.
• Do not impose great impact to this product and handle it with care to prevent impairment
to performance or life span of it.
• During normal operation of ultrasonic generator, a consistent sound is resulted from the
harmonic oscillation of the tank body impacted by ultrasound wave, and no agitation
but ripple is caused on the surface of cleaning fluid by explosion of cavity. In case of
discontinuous oscillation, increase or reduce the cleaning fluid by a small quantity to
eliminate such oscillation to facilitate cleaning of work piece.
• While ensuring adequate cleaning of work piece, keep the generator operating
intermittently, as long-term consecutive operation may result in high temperature insides
and accelerate aging of electronic components in it.
Safety warning!

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3. Product features
• Before changing or discharging the cleaning fluid, make sure the fluid is at normal
temperature and the ultrasonic wave generator is shut down and the power supply is
disconnected.
• Perform any maintenance operation only after the power supply is disconnected to avoid
any safety accident.
• This product contains high voltage during operation, so do not dismantle its enclosure to
avoid any hazard.
• For any damage to the power cable, contact your service center or your dealer for
replacement.
• Clean the enclosure with soft dry cloth after disconnecting the power cable.
• Protect this product from splash of rain or water to avoid electric shock or fire, and keep it
away from any location with high temperature or humidity.
• For reason of personal safety, do not dismantle the enclosure for repair or change on your
own.
• Proprietary MCU-sweep ultrasonic generator driver circuit to present better cleaning
performance and to minimize noise level.
• Proprietary industrial ultrasonic transducer with high Q value and energy conversion
efficiency and long service life.
• Imported high-strength glue, staple-free bonding, and long service life of tank.
• Digital timing for heating control between 1-99 minutes and temperature setting
between1-80℃.
• Internal tank fabricated of 1.0mm SUS304 stainless steel to present good performance and
long service life.
• Cleaning basket made of SUS304 stainless steel and electro-polished.
• Outer Shell made of high-quality stainless steel to present good corrosion resistance.

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4. Specication
Model USA-UC-30L
Tank Capacity 30L
Frequency 40KHz
Ultrasonic Power 600W
Heating Power 500W
Time Setting 1~99 Minutes
Temperature Setting 0~80℃
Power AC 110V 60Hz
Inside Dimensions
(LxWxH)
500x300x200mm/
19.69”x11.81”x7.87”
External Dimensions
(LxWxH)
560x320x385mm/
22.05”x12.60”x15.16”
Gross Weight 16kg
5. Scope of application
Industry Description
Instrumentation Cleaning of measuring tools and fine cleaning of precision parts
prior to assembly
Electronics Removal of rosin and welding spots on printing circuit board and
cleaning of HV contacts and other electronic parts
Medical care Cleaning, disinfection and sterilization of medical devices and lab
glassware.
Semiconductor Fine cleaning of semiconductor chips.
Timepiece and jewelry Removal of grease, dirt, scale and polishing paste
Chemicals and biologicals Cleaning of lab glassware
Optics Cleaning of optical components and lens
Textile dyeing and finishing Cleaning of spinning spindle and spinneret
Petrochemicals Cleaning of metal filter mesh, chemical containers and exchanger
Machinery
Removal of oil and rust before galvanic coating, cleaning and
phosphating process before ion plating, removal of accumulated
carbon, scale and polishing paste, activation of surface of work
piece.
Surface treatment
Removal of oil/grease on parts and components, cleaning of
engine, carburetor and automobile parts and components, filter,
and filter mesh.

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6. Installation and preparation
① Place the machine horizontally at a well-ventilated and dry location.
② Select appropriate detergent, cleaning water or other solution based on properties of work
piece to be cleaned.
③ Properly and firmly connect the plug to a three-pin power socket which is grounded reliably
to ensure safety.
7. Operation instructions
Timing(Min)
Power Switch
Power Interface
Actual Temperature
Heating Indicator light
Set Temperature
Heating ON/OFF
Temperature Setting
Working Indicator light
Timing(S)
Timing Setting
ON/OFF

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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 inuencing 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.

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9. Troubleshooting
Symptoms Troubleshooting method
Failure of Ultrasonic wave
①Check whether the power cable has been connected
properly (by inspecting operation of power indicator lamp).
②Check whether PCB has been connected properly to the
power socket.
③Check whether the fuse tube is broken.
Weak ultrasonic wave
①Check whether the power voltage is normal.
②Inspect whether the energy converter get loose or there
is any shock absorption material or work piece under the
tank.
③Check whether cleaning fluid temperature is normal
(recommended operating temperature is higher than 30
degree) or there are many air bubbles in the fluid or on the
tank wall (repeated power-on/off will reduce the bubbles).
④Check whether the solvent is added excessively.
No heating
①Check whether target temperature is too lower (lower than
current actual temperature).
②Check whether the heater cable is disconnected or gets
loose.
③Check whether heater is broken (due to shortage of
cleaning fluid).
Electric leakage
①Check whether the machine has absorbed damp or
corroded.
②Check whether cable tray to each component is damaged,
loosened or broken.
③Check whether the earth wire is in good condition.

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10. Maintenance
This machine shall be used, maintained by dedicated personnel and a full check on the
equipment shall be performed regularly.
① Check the power supply and line connections for any looseness, overheating, damp
absorption or poor contact.
② Inspect sealing of the bottom board of cleaning tank for any leakage. Check the joint
between drain pipe and cleaning tank for leakage.
③ For looseness of ultrasound wave converter or burnout of power tube, contact the
manufacturer immediately.
④ The ultrasound wave equipment shall be operated and stored at well-ventilated, dry
and clean place to facilitate good performance and long service life.
8. Factors inuencing performance
Item Unit Quantity
Ultrasonic cleaner Set 1
Washing basket Pcs 1
Cover Pcs 1
Power cable Pcs 1
Operation manual pcs 1

Memo