Precautions for use of ultrasonic cell grinder

Precautions for use of ultrasonic cell grinder are as follows: 1 The temperature protection setting point must be 5 ℃ higher than the room temperature or sample temperature In case of temperature protection, press the set key for more than 4 seconds to reset the protection value When setting the wrong temperature, press the set key for more than 4 seconds to reset 2 It is strictly prohibited to start the machine when the horn is not inserted into the liquid (no load), otherwise the transducer or ultrasonic generator will be damaged 3 The amount, time and power of various cell fragmentation need to be determined by users according to different cells, and the best value of Zui should be selected The output power of this instrument is large If Ф 2, Ф 3 or Ф 6 luffing rod is selected, the power should be turned down to avoid the breaking of the luffing rod due to overload Power range of horn specification power range of horn Φ 22 ~ 20% Φ 33 ~ 30% Φ 610 ~ 50% Φ 10 ＞ 18% Φ 15 ＞ 22% Φ 20 ＞ 30% 4 After a certain period of time, the end of the luffing rod will be cavitating and corroded, which can be filed with oilstone or file, otherwise, the working effect will be affected 5 The use of the selector switch is to match the consistency of the frequency and impedance between the different specifications of the selector and the generator If the frequency of transducer assembly is not consistent with the impedance of generator, ultrasonic can not work When a new instrument or a new horn is equipped, the selector switch shall be set at the corresponding position When the horn is worn, the switch can be moved until the ultrasonic operation is normal At this time, the gear and the horn specification do not necessarily correspond The selector switch of the horn of ultrasonic cell grinder is generally set at the position corresponding to the horn when leaving the factory When the horn is worn, the user can freely select the gear until the ultrasonic works normally At this time, the gear does not necessarily correspond to the specification of the horn 6 Without preheating, good grounding shall be provided for use 7 When the ultrasonic is broken, the temperature of the liquid will rise rapidly due to the cavitation effect of the ultrasonic in the liquid The user should pay more attention to the temperature of various cells It is recommended to use a short time (no more than 5 seconds at a time) for multiple crushing, and at the same time to add ice bath cooling 8 The ultrasonic cell crusher adopts the switching power supply without power frequency transformer Do not touch it after opening the generator shell to prevent electric shock This instrument has reliable performance and is not easy to be damaged 9 The ultrasonic cell grinder shall be placed in a dry place without moisture, direct sunlight and corrosive gas 10 The practice shows that the effect of short-term and multiple work is better than that of continuous and long-term work In order to prevent the liquid from heating, a longer gap time can be set In addition, it is easy to form no-load when working continuously for a long time, which shortens the service life of the instrument.