The rotor, as an important part of the centrifuge equipment, directly determines the speed of the centrifuge. In the process of using the centrifuge, we must pay attention to the maintenance operation of the rotor. We know that depending on the maximum speed, we can divide the centrifuge into the following types: low speed centrifuge <10000rpm/min, high speed centrifuge 10000rpm/min~30000rpm/min, ultra high speed centrifuge>30000rpm/min, each centrifugation The machine has a rated maximum speed. The maximum speed refers to the speed under no-load conditions, but the maximum speed varies depending on the type of rotor and the quality of the sample. For example, the rated speed of a centrifuge is 16000 rpm/min, which means that the rotor rotates 16,000 times per minute at no load. After adding the sample, the speed will definitely be less than 16000 rpm/min.
Interrogation of the rotor in the centrifuge:
1. Rotor sample balance question: The first recommendation of the Centrino centrifuge is of course the rotor sample transfer problem. The sample tube or the centrifuge bottle should be placed symmetrically, and the quantity should be presented in pairs. Of course, the sample components in the test tube or the centrifuge bottle should be the same. If the sample is not able to add the same amount of water to another tube or centrifuge bottle.
2. Rotor placement balance Question: The rotor is loaded and loaded on the rotating shaft of the centrifuge. When the rotor is installed, the rotor device must be balanced and there must be no side sill. The Hengnuo Centrifuge understands the long-term use of the shaft and rotor, and observes whether the shaft is biased or not. Other long-term used rotors must be seen before they are loaded or damaged. If there is any, they need to be stopped. Because the rotor is damaged and corroded, it will affect the balance of the rotor.
At present, centrifuges have gradually developed towards intelligent, automated and integrated support. The application of the computer on the centrifuge allows for the storage of dozens of centrifuge parameter setting programs. The fully sealed touch button cooperates with the liquid crystal display to realize menu setting and measurement display, and can display setting parameters and actual running time parameters at the same time, and can conveniently use the Chinese menu to realize man-machine dialogue and convenient use. Automatically record data such as quality control and production operating conditions, automatically generate reports, and obtain data from each batch of processed samples at any time from the computer to monitor the entire processing of the samples. It is also possible to form a complete centrifugal network with other centrifuges through a central control computer, so that the entire production process is under computer control.
The intelligence of the centrifuge is also reflected in the ability to automatically identify the various rotors. Automatically identify whether the rotor is in place, the speed setting is reasonable, and alert the operator. It can effectively avoid accidents caused by inadvertent operation. It can realize the automatic calculation of the centrifugal force according to the rotor model and the rotational speed or directly input the centrifugal force to obtain the corresponding rotational speed. The automatic setting means that the operating speed and acceleration and deceleration time of the centrifuge are automatically set according to the rotor type of the automatically recognized centrifuge. Password protection for the set program. The centrifugation process is controlled by an integrator to ensure that the sample is subjected to the same centrifugal force in different batches.
This article was edited by the laboratory instrument - Hunan Gilson Technology Development Co., Ltd.
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