The low-speed centrifuge adopts brushless maintenance-free motor drive, digital display, steel body, stainless steel centrifugal chamber, electronic door lock protection, 9-stage lifting speed rate adjustable, and can change the speed, centrifugal force, time, and other parameters during operation. In the long-term use of the product, timely maintenance is very important, and today we will introduce the maintenance problem of the low-speed centrifuge.
1. The main power indicator light is on. At this time, the degree of wear of the carbon brush should be checked. If the carbon brush wear exceeds one third of the total amount, the new carbon brush should be replaced in time.
2. When the main power indicator is off, check whether the indicator fuse and the indoor distribution board fuse are blown. Also check whether the power line is in good contact. If the fuse is broken, replace the fuse and stick to the circuit.
3, check the vacuum pump table and oil pressure indication value, if the oil pressure is too high and the host can not start, it is necessary to check whether the oil circuit is blocked, especially the throttle hole is not dredging, if it is not dredging should be cleaned to clear it .
4. The bearing is damaged or the rolling is blocked. There is no oil in the bearing or there is more dirt in the bearing, which causes the frictional resistance to increase. If the motor does not reach the extra speed, the bearing should be cleaned or replaced in time.
5. There is a layer of oxide on the surface of the commutator, and even if the bump is uneven or the brush does not conform to the outer edge of the commutator, the rotation speed can be reduced. The commutator and the brush should be cleaned to make the contact good.
6. If the rotor coil is short-circuited or open circuit, it can be viewed with a multimeter. When the rotor is used, the centrifuge tube may break due to fatigue, overspeed, overstress, chemical corrosion, improper selection, unbalanced operation and temperature loss, and the sample leaks and the rotor is damaged.
This article was edited by the laboratory instrument - Hunan Gilson Technology Development Co., Ltd.
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