Electric centrifuges are commonly used in laboratories. The electric centrifuge rotates at a high speed. It is necessary to pay attention to safety. In particular, it is necessary to prevent the centrifuge from moving while working due to unbalance or aging of the test tube during operation of the centrifuge, so that it falls off the bench or is not covered by the cover. After the centrifuge tube is broken due to vibration, the glass fragments are rotated and flew out, causing an accident. Therefore, the following operations must be taken into account when using the centrifuge.
(1) The bottom of the centrifuge casing should be padded with cotton or test tube pads.
(2) If the electric centrifuge is vibrating or the body is vibrating, the power should be cut off immediately to eliminate the fault immediately.
(3) The centrifuge tube must be placed symmetrically into the casing to prevent the body from vibrating. If only one sample tube is to be replaced with water of equal quality.
(4) When starting the centrifuge, the top cover of the centrifuge should be covered before it can be started slowly.
(5) After the separation is completed, the centrifuge is turned off first, and after the centrifuge stops rotating, the centrifuge cover can be opened to take out the sample, and no external force can be used to force the movement to stop.
(6) The centrifugation time is generally 1 to 2 minutes. During this period, the experimenter must not leave to do other things.
Note: 1. In order to ensure safety and centrifugal effect, the instrument must be placed on a solid horizontal surface. No items should be placed on the engineering plastic cover door; the samples must be placed symmetrically and the nut must be tightened before starting the machine.
2. Before use, check the rotor for any flaws, corrosion, etc. At the same time, check the centrifugal cup for cracks, aging, etc. If you find any doubt, stop using it immediately and contact the factory; be sure to tighten the rotor before starting the machine. Press the nut to prevent the high-speed rotating rotor from flying out and causing an accident.
3. The speed setting must not exceed the maximum speed to ensure the safe operation of the machine.
4. If 0.00 or other digits appear during use, the machine will not be turned off. It should be turned off and off. After 10 seconds, turn it back on. After the set speed is displayed, press the operation button again, and the machine will run as usual.
5. If the specific gravity of the sample to be separated exceeds 1.2 g/cm 3 , the maximum speed N must be corrected as follows: N = NMAX * (1.2 / sample specific gravity) 1/2, NMAX = rotor limit speed.
6. Do not open the door during the operation of the machine or the rotor is not stopped to avoid accidents.
7. The centrifuge cup must be filled with the same amount of sample. Do not run the rotor under unbalanced conditions.
8, the centrifuge should not run more than 60 minutes at a time.
9. The centrifuge must be grounded reliably; if the machine is not in use, unplug the power cord.
Maintenance hotline
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