Ultrasonic Generator Technical Specification
Ultrasonic cleaners contain ultrasonic generators. These generators convert voltage into ultrasonic signals. Our ultrasonic generator is multi-functional. We made it using the advanced technology of microcomputer control. Our generator is the best generator for ultrasonic cleaning.
Below are the technical specifications of our ultrasonic generator.
Ultrasonic Generator Features and Functions
- Frequency tracking is automatic. This means only the most suitable frequency is used to run the ultrasonic cleaner. This type of frequency tracking is made possible by digital frequency synthesis, which the microcomputer controls.
- The ultrasonic generator has protection against overheating and excess current. The ultrasonic cleaner will not be damaged even if it is used for long hours.
- It allows continuous adjustment of digital ultrasonic power. This means the cleaning can be done flexibly and efficiently.
- It has an accurate timer. Under cleaning and over cleaning is prevented. Over cleaning an object can result to cavitation erosion.
- It can accommodate other control devices via an external control connector.
- It has the ability to display frequency.
Ultrasonic Generator Technical Parameters
- Working voltage: 220v ±10%
- Working frequency: 28kHz（40 kHz，80 kHz，135 kHz）± 5%
- Working current:
Note: Do not run the device for a long period of time under the maximum working current.
- Power control range: 0-100%
- Time control: 0-59’59
- Ambient temperature: 0-40 °C
- Internal case overheat protection: 65 C°
- Relative humidity: 40%-90%
- Outlook size: L x W x H
- If less than 1200W: 300 x 360 x 160
- If more than 1500W: 500 x 360 x 160
Ultrasonic Generator Front Panel
- The ultrasonic generator’s front panel contains the following:
- Display window – This shows the values of power and time. It also displays the working condition and errors.
- Power buttons – There are two power buttons for adjusting the power output. One is for increasing power while the other is for decreasing power.
- Time buttons – There are two Time buttons for setting the working time. One is for increasing the time and the other is for decreasing it.
- Sweep button – This button is for choosing the state of the frequency. You can choose Normal or Sweep.
- On/Off button – This button is for pausing and resuming the operation.
Ultrasonic Generator DIP Setting
The frequency can be changed by adjusting the DIP, which is the red button (which can be seen on the picture above). Keep in mind that the frequencies of the ultrasonic generator and the transducer must match. Below is a chart showing the proper DIP setting.
1. Frequency Adjustment
- Open the case of the ultrasonic generator.
- To know the maximum amount of current that your transducer can handle, look for the blue button (as seen on the picture above) and adjust it. If, for example, you have a 28kHz transducer, the frequency range is from 27kHz to 31kHz. The frequency range for a 40kHz transducer is from 38kHz to 42kHz.
2. Current Adjustment
Our ultrasonic generator uses an advanced computer operating and controlling system. This makes it easy to debug the system. Below are the steps on how to operate the generator.
- Plug in and load the electric cabinet’s power supply.
- At the power supply’s lead-in terminal, connect an ammeter with a current capacity of 10A.
- Turn on the power supply and then check the reading of the ammeter. For 1200W, the ammeter reading should be less than 5A.
- Make the generator show the frequency on the display window. It should be the frequency on normal working condition. Check the DIP setting chart above.
- Get the maximum working current in the 27kHz-31kHz frequency range. Take note of the frequency and current. In general, you will get two maximum working current values.
Lessen the matching inductance if frequency and current have very low values. For example, when the current is less than 2A and the frequency is less than 28kHz at 1200W. When the values are like these, the magnetic core’s air gap should be widened. This means sheets of highland barley paper should be placed in the air gap.
Raise the matching inductance if the values of the frequency and current are very high. That is, if the frequency is more than 30kHz and the current is more than 5A at 1200W. The magnetic core’s air gap should be shrunk. This means the pad of the magnetic core’s air gap should be lessened.
The power supply should be turned off before any kind of adjustment to the magnetic core’s air gap is performed. Take note of any change in the current so as to prevent the current from increasing too much. The power supply’s temperature should also be observed.
In general, the current should be adjusted to 4-4.5A and the frequency should be in the 27.8kHz-29kHz range.
The frequency should be readjusted a little after every adjustment to the matching inductance. This is to ensure that the working current is always at the maximum point. There is an increase in the harmonic frequency and current every time the matching inductance is reduced.
In general, if the seismic response is 28kHz, the frequency should be in the 26kHz-31kHz range. If the seismic response is 40kHz, the frequency should be in the 39kHz-42kHz range. For the ultrasonic generator to go back to normal mode, the “time down” button should be pressed and the power switch should be turned on simultaneously.
Basically, the harmonic frequency is increased when the current is increased and the matching inductance is decreased. On the other hand, the harmonic frequency is decreased when the current is decreased and the matching inductance is increased.
Keep in mind that when making adjustments, it is very important to be sure that the value of the operating frequency is not too low and the current is not more than the rated current of the ultrasonic generator. Otherwise, the power tube will be damaged.