Precautions for use of ultrasonic pulverizer
Ultrasonic pulverizer is a multi-functional and multi-purpose instrument that uses the ultrasonic to generate cavitation effect in liquid and ultrasonically treats the substance. It can be used for the crushing of animal and plant tissues, cells, bacteria and spores. Emulsification, separation, dispersion, homogenization, extraction, degassing, washing and accelerating chemical reactions, etc. It is widely used in biochemistry, microbiology, pharmaceutical chemistry, surface chemistry, physical chemistry, zoology and other fields.
It consists of an ultrasonic generator (power supply), a transducer assembly and a soundproof box, and is connected by a cable in the middle.
Pay attention to the following when using the ultrasonic pulverizer:
1. Check the power supply voltage: 220V ± 5% AC voltage (frequency 50Hz), the power socket is located at the bottom left of the instrument's rear panel. Please pay attention to the power color.
Warning: To avoid lightning strikes and safe use, use grounding. Unplug the power plug first when replacing the fuse.
2. Instrument working environment The instrument should be placed in a well-ventilated place in the room. The room temperature range for normal operation is 0 °C to 40 °C.
For the instrument to work properly, please pay attention to: anti-corrosion, moisture-proof, sun-proof, dust-proof.
3. installation
• Connect the power cord, transducer, and temperature probe to each jack.
• Insert the transducer into the soundproof box, select the container according to the sample size, pour the sample and place it on the lifting table inside the soundproof box. Adjust the height of the lifting platform so that the end of the horn is inserted into the sample liquid level and is usually 10-15 mm and placed in the center of the container. The horn and the container should not hit the wall, and the end face of the horn and the bottom of the container should be larger than 4cm (instead, the ultrasonic power will cause no load), so the crushing effect is better, and the container is recommended to adopt an elongated container. When the amount is small, the ultrasonic power is turned on a little (the insertion depth of the horn is 8-10mm, but it must not be in contact with the bottom of the container)
The range and the best power of the new horns of various specifications are as follows:
Horn MM | Φ2 | Φ3 | ★Φ6 | Φ8 | Φ10 | Φ12 |
The amount of crushing ml | 0.2-5 | 3-10 | 10-100 | 20-200 | 50-300 | 100-500 |
Power ratio 1-99% | 1-35% | 1-45% | 5-70% | 10-85% | 20-90% | 30-95% |
Note: Due to different horn selection, the input and output power are different. Especially when selecting Φ2, Φ3 horn, you must not choose the wrong one (interface, actual horn size, instrument rear panel position) Must be consistent).
After the horn is used for a long time, when the honeycomb shape appears, apply the file to flatten. If the ultrasonic wave cannot be sent normally, the horn selection switch on the rear panel of the instrument can be disturbed. The actual horn and the selection switch The bits are inconsistent until the ultrasound waves normally.
4. The temperature protection set point must be 1-3 °C higher than the room temperature or sample temperature.
5. It is strictly forbidden to turn on when the horn is not inserted into the liquid (no load), otherwise the instrument will be damaged.
6, the amount of various cell disruption, length of time, power size, waiting for the user to determine according to various cells, select the best value.
7. After a certain period of time, the end of the horn will be corroded and corroded, and it can be flattened with oil stone or trowel, otherwise it will affect the working effect.
8. When the ultrasonic is broken, the liquid will rise rapidly due to the cavitation effect of the ultrasonic wave in the liquid, and the user should pay more attention to the temperature of various cells. It is recommended to use multiple breaks in a short period of time (no more than 5 seconds each time), plus an ice bath for cooling. (It is recommended that the ultrasound work for 1-4 seconds and the gap works for 2-8 seconds)
Warning: In the course of work, the varactor must be turned off before powering off. Please re-select the horn specifications after restarting, otherwise the horn may be damaged.
ZHEJIANG SHENDASIAO MEDICAL INSTRUMENT CO.,LTD. , https://www.sdsmedtools.com