Operating Manual for BULC-205

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1. Packing List
2. Principle of ultrasonic cleaning
3. Product Features
4. Technical Parameters
5. Scope of Application
6. Installation and Preparation
7. Operation Instructions
8. Factors Influencing Performance
9. Maintenance
10. Malfunctions and Solutions
11. Application Safety
12. Warranty

1. Packing List

Item	Quantity	Accessories	Quantity
Ultrasonic cleaner	1	Cover	1
Operation manual	1	Power cable	1
Washing basket	1 (optional)

Table 1

2. Principle of ultrasonic cleaning

Ultrasonic cleaning machine 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 thousand 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.

3. Product Features

1. Proprietary MCU-sweep ultrasonic generator driver circuit to present uniform and strong cleaning performance.
2. Proprietary industrial ultrasonic transducer with high Q value and multiple frequency to operate stable at each frequency and to present higher energy conversion efficiency.
3. Imported high-strength glue, staple-free bonding, stronger ultrasonic cleaning performance and long service life of tank.
4. Digital cleaning timing within 1-30mins, and multiple frequencies to be toggled manually or automatically
5. Digital heating control between 1-80℃.
6. Internal tank fabricated of SUS304 stainless steel 1.0mm to present good performance and long service life. Cleaning basket made of SUS304 stainless steel and electro-polished.
7. Outer shell made of high-quality stainless steel to present good corrosion resistance.

4. Technical Parameters

Model	Internal Dimensions （L*W*H）	External Dimensions （L*W*H）	Volum e（L）	Gross Weight (KG)	Ultrasonic Power(W)	Frequen cy(KHz)	Heating Power(W)	Drain valve	Time (Min)	Heating Temperat ure(℃)
BULC-201	300*240*150	368*270*290	11	10	240		300	yes
BULC-202	330*300*150	397*320*317	15	12	360	40/80/1 20	400	yes	1-30	1-80
BULC-203	330*300*200	397*320*368	20	14				yes
BULC-204	500*300*150	560*320*317	22	15.5	480		500	yes
BULC-205	500*300*200	560*320*385	30	17	600		500	yes

Table 2

5. Scope of Application

Industry	Describe
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.
Surface treatment	Removal of oil/grease on parts and components, cleaning of engine, carburetor and automobile parts and components, filter, and filter mesh.
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.

Table 3

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

Picture of Product

Figure 1

Figure 2

NO.	Button	Function
1	Working indicator lamp	Ultrasonic wave is started when this lamp turns on
2	Heating indicator lamp	Cleaning tank starts heating when this lamp turns on
3	40KHZ	Ultrasonic wave operates at 40KHZ when this lamp turns on
4	80KHZ	Ultrasonic wave operates at 80KHZ when this lamp turns on
5	120KHZ	Ultrasonic wave operates at 120KHZ when this lamp turns on
6	Temperature setting	Temperature set is displayed with digital tube in this window.
7	Actual tank temperature	Actual tank temperature is displayed with digital tube in this window.
8	Set time (Min.)	Time set (in minute) is displayed with digital tube in this window.
9	Set time (Sec.)	Time set for timer (in second) is displayed with digital tube in this window.
10	Up	In temperature setting, press it to increase temperature value; long press it to increase fast; In time setting, press it to increase second; long press it to increase fast.
11	Down	In temperature setting, press it to decrease temperature value; long press it to decrease fast;In time setting, press it to decrease second; long press it to decrease fast.
12	Heating On/Off	Press it to start tank heating and heating indicator lamp turns on; press it again to stop heating and the lamp goes out
13	Temperature and time Setting key	Press it down and temperature setting tube keeps flashing, and then you can increase or decrease temperature value by using Plus/Minus key; press it again and time setting tube keeps flashing, and then you can increase or decrease time value by using Plus/Minus key.
14	Frequency transfer	Press it to toggle frequency; 40KHZ indicator lamp turns on when 40KHZ frequency is enabled. 80KHZ indicator lamp turns on when 80KHZ frequency is enabled. 120KHZ indicator lamp turns on when 120KHZ frequency is enabled.
15	Auto mode	Press it down to start Auto Mode, and ultrasonic wave will keep operating at 40KHZ for the time set for 40KHZ, and then at 80KHZ for the time set for 80KHZ, and then at 120KHZ for the time set for 120KHZ.
16	ON/OFF	Press it down to start ultrasonic wave, and press it again to stop operation of ultrasonic wave (this key is unavailable in Auto mode)

Table 4

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.

9. 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.

10. Malfunctions and Solutions

malfunctions	solutions
Failure of Ultrasonic Wave	Check whether the power cable has been connected properly (by inspecting operation of power indicator lamp). Check whether PCB has been connected properly to the power socket. Check whether the fuse tube is broken
Weak ultrasonic wave	Check whether the power voltage is normal. Inspect whether the energy converter get loose or there is any shock absorption material or work piece under the tank. 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	Check whether target temperature is too lower (lower than current actual temperature). Check whether the heater cable is disconnected or gets loose. Check whether heater is broken (due to shortage of cleaning fluid)
Electric leakage	Check whether the machine has absorbed damp or corroded. Check whether cable tray to each component is damaged, loosened or broken. Check whether the earthing wire is in good condition.

Table 5

11. Application Safety

Safety Considerations
1. Warns: This product contain dangerous voltage, so do not start it at a high-temperature or humid location to avoid electric shock.
2. Do not impose great impact to this machine, and handle it with care to prevent impairment to performance or life span of it.
3. Locate this machine properly to avoid any accident resulted from children's access to it.
4. Perform any maintenance operation only after the power supply is disconnected to avoid any safety accident.
5. The machine contain high voltage during operation, so do not dismantle its enclosure to avoid any hazard.
6. For any damage to the power cable, contact your service center or your dealer for replacement.
7. Clean the enclosure with soft dry cloth after disconnecting the power cable.
8. Protect the machine from splash of rain or water to avoid electric shock or fire, and keep it away from any location with high temperature or humidity.
9. For reason of personal safety, do not dismantle the enclosure for repair or change on your own.

Safety Considerations
1. 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.
2. 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.
3. Absolutely do not use any inflammable detergent.
4. Start heating or ultrasonic wave generator only when the cleaning tank contains fluid, or otherwise the machine may be burnt out or even result in fire.
5. Prevent splash of cleaning fluid or water into the machine or energy converter, which may cause electric leakage or short circuiting, and thereby damage to the converter.
6. Any foreign matter falling into the tank shall be taken out immediately.
7. 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.
8. Remove any dirt in the tank after operation.
9. Keep the external surface of the machine clean.

12. Warranty

1. Validity of warranty: One year from the date of purchase
2. Please keep this after-sale service card properly, or otherwise the warranty will be invalid.

Warranty will be invalid in any one of the following cases:
◦ The machine fails or is damaged due to improper use or unauthorized disassembly of the product by user.
◦ The machine is damaged due to force majeure (e.g. fire, flood, earthquake).
◦ The machine is damaged due to failure to operate the machine in accordance with the instructions.
◦ The machine is damaged due to improper repair by anyone other than our technician.
◦ The warranty card and/or purchase invoice is unavailable or be altered without authorization.

Warranty Card
User Information
Customer Name		User's Telephone
User's Address
Product Information
Product Model		Attached Number
Purchase Date		Dealer Name
Dealer's Telephone		Dealer's Seal
Dealer's Address
	__________________		__________________