one. When the centrifuge is in the pre-cooling state, the centrifuge cover must be closed. After the centrifuge is finished, the rotor should be taken upside down on the test bench, and the residual water in the cavity should be dried. The centrifuge cover is open.
2. Rotating head When pre-cooling, the rotating head cover can be placed on the platform of the centrifuge, or placed on the test bench. Do not screw it on the rotating head, because once it is accidentally activated, the rotating head cover Will fly out, causing an accident!
3. After the screw cap is tightened, be sure to touch the gap between the rotor and the cover with your fingers. If there is a gap, unscrew and retighten until the gap is confirmed before the centrifuge can be started.
four. Select the rotor with the right capacity. Pay special attention to the fact that the liquid in the centrifuge tube should not exceed 2/3 of the total capacity of the centrifuge tube during centrifugation. If it exceeds, the liquid will easily overflow. Pay attention to whether there is any leakage in the rotor before and after use. The liquid remains and keeps the bricks of the centrifuge dry. When converting different rotors, care should be taken to secure the bayonet shaft and the adapter of the rotor.
1. Centrifuge tube balance error should be within 0.1 gram.
2. Select the centrifugal parameters:
a) Select the temperature setting item, then use the addition and subtraction buttons to set the centrifugal temperature, and confirm the key to confirm. b) Select the speed setting item, use the RPM/RCF setting file to switch between the centrifuge and the rotation speed, use the addition and subtraction keys to set the centrifugal speed or adjust the centrifugal force. OK button OK.
c) Select the rotor setting item, then use the addition and subtraction keys to set the rotor model and confirm the key to confirm. d) Select the time setting item, then use the addition and subtraction keys to set the centrifugation time and confirm the key determination.
e) Centrifuge brake or acceleration speed is generally set between 1 and 5 depending on the requirements of centrifugation, and is adjusted according to the centrifugal requirements.
3. Place the well-balanced centrifuge tube symmetrically into the rotor, then cover the rotor cover and tighten the screws.
4. Press the centrifuge door. If the door cover is not closed, the door cover switch cannot be touched and the centrifuge will not start.
5. Press the power button, the machine starts to centrifuge. After the start of centrifugation, the centrifuge speed should be reached until the set speed is reached. Once the centrifuge is found to be abnormal (such as unbalanced machine causing obvious vibration or noise), Press the stop button immediately to stop the centrifugation. Generally, the power cord is pulled out after the machine is stopped. Pulling out the power cord during the operation will cause the centrifuge brake to fail, and increase the downtime of the centrifuge.
6. Please clean the rotor and centrifuge chamber after use, do not close the centrifuge cover, which is conducive to evaporation of moisture. 9. You must register after use and indicate the usage.
5. During the centrifugation process, the operator must not leave the centrifuge room. If an abnormal situation occurs, the operator cannot turn off the power (POWER), press STOP. Fill in the centrifuge usage record before pre-cooling.
6. Do not use fake centrifuge tubes, and do not use aging, deformed, cracked centrifuge tubes.
7. You can leave after the last routine safety check using a centrifuge on holidays and evenings.
8. In the event of machine failure during the use of the instrument, please contact us in time for damage.
At present, the laboratory high-speed refrigerating centrifuge rotates at a high speed, so it is necessary to pay attention to safety. In particular, it is necessary to prevent the centrifuge from moving while working, and falling from the experimental bench due to unbalance or aging of the test tube pad during operation of the centrifuge. Or, because the cover is not covered, the centrifuge tube is broken by vibration, and the glass fragments are rotated and flew out, causing an accident. Therefore, when using a centrifuge, the following manipulations must be observed.
Precautions
1. When the centrifuge is in the pre-cooling state, pre-cooling is very necessary. It is not necessary to ignore the process because of the rush time. The centrifuge cover must be closed. After the centrifugation, the rotor is taken out. The rotor is placed on the test bench and rubbed. The residual water in the dry chamber, the centrifuge lid should be open.
2. When ultracentrifugation, the liquid must be filled with the centrifuge tube, because vacuuming is required during ultracentrifugation, so the deformation of the centrifuge tube can be avoided only when it is full. In case of poor sealing performance of the centrifuge tube cover, the liquid cannot be filled up to prevent overflow and affect the normal operation of the sensor. If you don't know the speed of the overspeed, you can consult the technicians of Xiangrui Centrifuge Co., Ltd. to understand.
3. Rotating head When pre-cooling, the rotating head cover can be placed on the platform of the centrifuge or placed on the test bench. Do not screw it on the rotating head, because once it is accidentally activated, the rotating head cover Will fly out, causing an accident!
4. After tightening the head cover, be sure to touch the gap between the rotating head and the rotating cover with your fingers. If there is a gap, unscrew and retighten until the gap is confirmed before the centrifuge can be started.
5. Always use a grounding wire when using. The material added in the centrifuge tube should be relatively balanced. If the two sides are unbalanced, it will cause great damage to the centrifuge, which will at least shorten the service life of the centrifuge. Will also be a safety hazard
6. During the centrifugation process, the operator must not leave the centrifuge chamber. In the event of an abnormality, the operator should press the stop button instead of the power button. More information on
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