ultrasonic homogenizerThe power directly affects the homogenization effect of the material. Low power can lead to insufficient dispersion of the material, while high power can easily cause sample splashing, probe heating damage, and even damage to the active ingredients of the material. The following is a general power regulation practical method suitable for laboratory and small industrial models, and specific operating steps and precautions are given based on the characteristics of different models.

1、 Preparation work before power regulation

Confirm the compatibility between equipment and materials

Select the corresponding specification of amplitude rod (probe) based on the volume and viscosity of the material, for example, a Φ 6mm amplitude rod is suitable for small volume (<50mL) samples, and the recommended power should not exceed 60%; The Φ 15mm amplitude rod is suitable for medium and large volume samples, with a power not exceeding 80%.

Check if the probe is clean and undamaged, ensuring that the end of the amplitude rod is inserted 10-15mm into the material liquid level and centered, without touching the container wall, to avoid damaging the transducer during no-load start-up.

Pre set basic parameters

Firstly, set the ultrasonic working time (recommended 1-5 seconds per session) and interval time (recommended 2-3 seconds) to reduce material heating and protect the equipment by performing multiple ultrasonic waves in a short period of time.

For thermosensitive materials, it is necessary to turn on the ice bath or low-temperature circulation device in advance, set the temperature protection threshold (must be above 5 ℃ above room temperature), and prevent overheating shutdown from affecting the experiment.

2、 Practical steps for power regulation of different models

1. Rotary basic model (manually adjustable)

These models are mostly entry-level laboratory equipment, with power controlled by knob gear. The operation process is as follows:

Connect the power, press the device start button, and the power indicator light will turn on.

Press the protection reset and work reset buttons first, and enter standby mode after the gap time ends.

Slowly rotate the power knob clockwise to gradually increase the power to the target value, for example, when processing samples below 10mL, the power should be controlled within 200W; Samples above 200mL can be adjusted to 300-600W.

If the protection indicator light is on during the process, it indicates power overload. The knob needs to be lowered counterclockwise, reset again, and restart.

2. Digital keypad model (semi-automatic adjustment)

Taking Xinzhi Scientz IID and other models as examples, it supports precise digital power setting. The steps are as follows:

Press the SET key to enter the parameter setting mode, and switch to the "power output" option using the ▲/▼ keys. At this time, the last digit of the value will jump.

Directly enter the power percentage (such as 50%) through the numeric keypad, or use the ▲/▼ keys to fine tune; Note that the power of the small probe with a diameter of 2mm must not exceed 350W to avoid breakage.

After setting, press the confirm button to return to the main interface and start the device; During the work process, the ▲/▼ keys can be pressed at any time to fine tune the power without stopping the machine.

3. Intelligent mode models (automatic adjustment)

Some high-end models (such as the Yamato LUH series) support multi-mode power control, and the operation is as follows:

Power Fixed Mode (POW): Directly set the output power value, suitable for homogeneous scenarios with stable material properties.

Fixed amplitude mode (PWM): indirectly controls power by fixing amplitude, adapts to materials with viscosity fluctuations, and avoids power fluctuations.

Sensor Feedback Mode (SEN): After activation, the device will monitor the material status in real-time through vibration sensors, automatically adjust power, and prevent sample splashing or insufficient mixing, especially suitable for large-scale batch processing.

3、 Core considerations for power regulation

Adapt power according to material characteristics

Fragile cells, active enzymes and other thermosensitive materials, with power controlled at 30% -50% and extended interval time; Chemical raw materials and difficult to disperse particles can be increased to 60% -80%, but temperature monitoring is required throughout the process.

Reference power for samples of different volumes: ≤ 200W within 10mL, 200-400W within 10-200mL, and 300-600W above 200mL.

Avoid prolonged high-power operation

Continuous high-power operation can easily cause probe heating and no-load damage. It is recommended to use the "short ultrasound+long interval" mode, such as a 2-second ultrasound/3-second interval cycle, with the total working time completed in segments.

Model calibration of intelligent models

If usedultrasonic homogenizerThe intelligent regulation system with machine learning needs to first collect power mixing state data of materials with different volumes and concentrations, establish a power prediction model, and ensure the accuracy of automatic regulation.