What are the precautions for using centrifuge

Centrifuge is a machine that uses centrifugal force to accelerate the separation of different materials Centrifuges are widely used in chemical, petroleum, food, pharmaceutical, mineral processing, coal, water treatment and shipping sectors Pay attention to the following aspects when using the centrifuge: 1 In order to ensure the safety and centrifugal effect, the instrument must be placed on a solid and horizontal table, and no objects shall be placed on the engineering plastic cover door; the samples must be placed symmetrically, and the nuts must be tightened before starting the machine 2 Before use, the rotor shall be checked for damage, corrosion and other phenomena Meanwhile, the centrifugal cup shall be checked for cracks, aging and other aspects In case of any doubt, the rotor shall be stopped immediately and the manufacturer shall be contacted Before start-up and operation, the compression nut of the rotor shall be tightened to avoid accidents caused by flying out of the rotor at high speed 3 The speed setting must not exceed the high speed in order to ensure the safe operation of the machine 4 If 0.00 or other numbers appear in use, the machine does not run, it should be shut down and powered off, and restart after 10 seconds After the set speed is displayed, press the run key again, the machine will run as usual 5 If the specific gravity of the sample to be separated exceeds 1.2g/cm3, the high speed n must be corrected as follows: n = nmax * (1.2 / specific gravity of the sample) 1 / 2, nmax = rotor limit speed 6 Do not open the cover door when the machine is running or the rotor is not stopped stably, so as to avoid accidents 7 The centrifuge cup must be filled with the same amount of sample, and the rotating head must not be operated under the unbalanced condition 8 The centrifuge can run for no more than 60 minutes at a time 9 The centrifuge must be grounded reliably; if the machine is not used, please unplug the power plug.