The desktop low-speed centrifuge is a commonly used centrifuge product, which has the advantages of stable performance, easy operation, flexible use, safe and reliable use. How should users maintain the desktop low-speed centrifuge when they are using it? The following editor will specifically introduce the maintenance methods of the desktop low-speed centrifuge, hoping to help users better apply the product.
Maintenance method of desktop low-speed centrifuge
1. How to check whether the motor is faulty, twist the motor shaft with a retractable twist, try both the forward and reverse directions, whether the motor can rotate, and whether the motor shaft deviates.
2. When the main power indicator is off, check whether the indicator fuse and the indoor power distribution board fuse are blown, and at the same time check whether the power cord is in good contact. If the fuse is blown, replace the fuse and keep the circuit open.
3. Check the vacuum pump gauge and the oil pressure indication value. If the oil pressure is too high and the main engine cannot be started, you must check whether the oil passages are blocked, especially whether the throttle orifice is unblocked. If not, clean it to make it unblocked.
4. The bearing is damaged or the rotation is blocked, the friction resistance increases due to lack of oil in the bearing or more dirt in the bearing, and the motor cannot reach the rated speed. The bearing should be cleaned or replaced in time.
5. There is a layer of oxide on the surface of the commutator, even if it is burnt to be uneven or the brush does not match the outer edge of the commutator, the speed will decrease. The commutator and brush should be cleaned to make good contact.
6. If there is a short circuit or open circuit in the rotor coil, it can be checked with a multimeter and the coil will be re-wound by the Shanghai Medical Centrifuge. When the rotor is in use, the centrifuge tube may rupture, sample leakage, and rotor damage due to metal fatigue, overspeed, overstress, chemical corrosion, improper selection, unbalanced rotor in use, and temperature out of control.
