Question 1: What maintenance should the centrifuge pay attention to, which can extend the life?
A: After each use, the centrifuge cover should be opened to allow the heat or moisture to evaporate naturally. If you have used low temperature centrifugation before, there may be ice. If the ice melts, wipe it with dry cotton gauze. Then cover the cover when there is no obvious water vapor. If the centrifuge rotor can be replaced, each rotor should be removed after use, cleaned with a clean, dry medical gauze, and placed under the buckle. Do not use a sharp scraper. The aluminum rotor should be cleaned frequently, and the centrifuge should not be maintained and repaired frequently. The operator should cut off the power when leaving. For the first time users, please consult the personnel who have used it before or refer to the instruction manual. Do not use it blindly.
Question 2: What are the common accidents in centrifuges?
Answer: Due to the high frequency of use of the centrifuge, the machine is damaged and the frequency of the accident is high. The main reason is caused by improper operation of the experimenter. Common problems are: the cover cannot be opened, the centrifuge tube cannot be taken out, and the centrifuge button is pressed. Not working; more serious problems are caused by uneven rotation of the shaft, motor burnout, horizontal buckets, and more serious accidents as shown in the above figure, and even wounding, and so on.
Question 3: What should we pay attention to when doing specific operations?
A: When we use it, we must pay attention to it from all aspects. After selecting the rotor and setting the parameters, it is necessary to observe the centrifuge for a while, and then reach the maximum speed and stabilize the operation before leaving. If you hear abnormal sounds or smell any smell during operation, you should immediately take the brakes, press the “Stop” button, and turn off the power if necessary. The centrifuge tubes must be placed symmetrically, and the corresponding centrifuge tubes should be as equal as possible. It is absolutely forbidden to open the centrifuge cover during the operation of the instrument! At the same time, it is also necessary for all personnel in the laboratory to develop good registration habits. The first one can know who used it before, and the condition of the instrument before use; the second can know the number of times the centrifuge is used, so as to know whether it needs to be repaired or replaced.
Although with the development of intelligence and automation, the common problems of the centrifuge, such as the actual use of the rotor and the input rotor number are incorrect, or the maximum centrifugal force input does not match the maximum centrifugal force of the rotor design itself, the symmetrically placed centrifuge tube When the weight difference exceeds the limit of the centrifuge, the centrifuge automatically stops working. But don't be lucky, let the centrifuge help us check our mistakes. First, it is a loss to the centrifuge and the rotor, and it wastes time. If the sample is sensitive to temperature, the sample is not Well, secondly, if the centrifuge does not have a self-test error, if the tragedy is caused, the consequences will be disastrous. In short, as a laboratory commonly used, seemingly simple instruments, centrifuges still have a lot of knowledge, we need our common care and maintenance, in order to extend its life and more stable service for our experiments.