An ultrasonic generator is a device that converts standard electrical power into high-frequency alternating current, which is then used to drive a transducer. It plays a crucial role in high-power ultrasonic systems and is often referred to as an electronic box, ultrasonic power supply, or ultrasonic controller. While it may be called an ultrasonic driving power source, it is actually just a part of the complete system. Ultrasonic power can be classified into self-excited and externally excited types based on their excitation methods. The self-excited type typically provides higher output power than the externally excited one, making most modern ultrasonic generators the preferred choice for driving applications.
Before using the ultrasonic generator, ensure that the cleaning tank is filled with clean water up to at least 10 mm above the upper vibration plate’s emitting surface. Add the appropriate amount of detergent depending on the dirt level of the items being cleaned. Never activate the generator without submerging the ultrasonic emission surface—this could damage the transducer.
To start the unit:
1. Set the power switch to "OFF."
2. Connect the vibration plate input cable to the generator.
3. Plug the generator into a 220V AC power supply (with a ±10% tolerance) and turn the adjustment knob to the lowest position (counterclockwise).
4. Once the cleaning fluid covers the ultrasonic emitting surface, turn on the power switch. The ultrasonic waves will begin working after approximately 5 seconds.
5. Gradually increase the ultrasonic energy by turning the frequency knob clockwise to find the resonance point. At this point, the power indicator will reach its maximum. A normal frequency is around 28 kHz, with power levels above 60%, and the current should range between 2.5A and 3.5A.
**Precautions:**
- Always ensure the ultrasonic emission surface is submerged in liquid before starting the generator. Never run it without cleaning solution in the tank.
- Avoid dropping hard objects onto the vibration plate or exposing it to strong vibrations.
- Do not let the liquid level rise above the vibration plate outlet. Avoid rinsing directly from the outlet to prevent water from entering the vibration plate or electric box.
- Long-term exposure to strong acids or alkalis can damage the vibration plate.
- When changing the cleaning solution, avoid large temperature differences to prevent sudden cooling and deformation of the vibration plate.
- If the vibration plate becomes dirty, clean it promptly to maintain effective ultrasonic performance.
- Do not use sharp brushes or excessive force when cleaning the vibration plate.
- If the vibration plate is broken, send it back to the manufacturer for repair.
- Avoid using the generator in humid or poorly ventilated areas.
- Keep the electric box dry and clean to prevent damage from moisture, dust, or poor ventilation.
- Stop using the generator if the power supply voltage exceeds the allowable range.
**Common Faults and Maintenance:**
Some common issues include no power output, unstable frequency, or overheating. To resolve these, check the connections, ensure the tank is properly filled, and verify the power supply. If problems persist, contact a professional technician for further assistance. Regular maintenance, such as cleaning the vibration plate and checking the electrical connections, can help extend the life of the ultrasonic generator and ensure optimal performance.
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