Question 1: what should we pay attention to when placing centrifuges in laboratories?

Answer: centrifuges are usually placed in dry places to avoid direct sunlight. Centrifuge heat dissipation is relatively large, around do not pile up debris, from the walls, baffles and other impermeable, poor heat dissipation of goods at least 10 cm above. At the same time, centrifuges should be placed in a single room as far as possible, and no organic reagents or flammable products should be placed around them.

Question 2: what details should we pay attention to as an operator?

Answer: As users, we should use special centrifugal tubes for liquid containing organic reagents according to the experimental requirements and the use of centrifugal tubes; choose the right turning head, the speed is absolutely prohibited to exceed the maximum speed indicated by the turning head, the accident in the picture is due to the wrong use of the turning head. Correct use of centrifugal tube and rotary head is very important, especially the symmetrical placement of centrifugal tube and weight balance, while attention should be paid to centrifugal tube and rotary head can bear the maximum weight of the solution, liquid loading up to 3/4 of the total volume of centrifugal tube. Many accidents are caused by improper use of rotating heads and centrifuge tubes.

Question 3: what kind of maintenance should the laboratory centrifuge pay attention to and extend the life span?

Answer: After each use, should open the cover of the centrifuge, so that heat or vapor natural evaporation, such as before the use of low-temperature centrifugal, there may be ice, then to wait for ice melting, timely use dry cotton gauze scrubbing clean, and so no obvious water vapor when covered. If the head of the centrifuge can be replaced, each head should be removed in time after use. Wash it with clean, dry gauze and place it upside down. Do not scrape it with a sharp instrument. Aluminum head should be often cleaned, and can not centrifuge to frequent maintenance, overhaul, operators to leave the time to cut off the power supply. First-time users should consult people who have used it before or mainly refer to the manual. Do not use it blindly.

Question 4: what are the common accidents in laboratory centrifuges?

Answer: Because the use of centrifuge frequency is higher, so the machine damage and accident frequency is higher, the main reason is still caused by improper operation of laboratory personnel, common problems are: the lid can not be opened, centrifugal tube can not be taken out, centrifuge button does not work; more serious problems are uneven force on the shaft leading to bending, motor Burn out, horizontal buckets thrown out, more serious accidents as shown above, and even injuries, and so on.

Question 5: what should we pay attention to in the specific operation?

Answer: attention should be paid to all aspects when using. After selecting the turning head and setting the parameters, the centrifuge should be observed for a while, and the maximum speed can be reached, and the centrifuge can not leave until it runs stably. If you hear an abnormal sound or smell something, you should immediately take the brake, press the "stop" button, and cut off the power supply if necessary. Centrifuge tubes must be placed symmetrically, and the centrifuge tubes corresponding to each other should be as equal as possible. It is absolutely forbidden to open the cover of the centrifuge during the operation of the instrument. At the same time, it is necessary for all laboratory personnel to develop good registration habits. First, we can know who used the centrifuge before, and then we can know how many times the centrifuge was used, so as to know whether it needs to be repaired or replaced.