Maintenance and daily use precautions for low-speed refrigerated centrifuges

Maintenance and daily use precautions for low-speed refrigerated centrifuges

1 Stable centrifuges that maintain the environment inside and outside the centrifuge should be placed horizontally, 10 cm above the wall, and maintain a good ventilation environment, protected from direct exposure of heat and sunlight, room temperature should not exceed 3Oq. Otherwise, it will affect the cooling effect. When the external humidity is large, the moisture in the centrifuge chamber volatilizes slowly. At this time, it should be removed in time to prevent the instrument from rusting. When centrifuging the sample tube just removed from the water temperature tank, always observe whether there is any water in the centrifuge cup and pour it in time to keep the balance of the centrifuge cup dry and centrifuged.

2. Prevent the sealing ring from aging. The upper part of the inner cavity of the centrifuge is equipped with a rubber sealing ring at the contact with the door. With the extension of the use time, the deformation should be observed frequently to prevent the external heat from infiltrating, which makes the cooling effect poor and affects the detection. result.

3. Set the temperature correctly. When setting the temperature, the upper limit set value must be too high than the lower limit set temperature value, otherwise the lower limit set temperature will be 2 °C lower than the upper limit set temperature.

4 Set the speed correctly. When setting the speed, it must be set after the timer is turned on. First convert the required speed into frequency (1H=60rpa1), then press â–³ or v to change the required frequency. After a few seconds, the frequency will automatically change the speed: when the instrument runs to change the speed, you can not use the SHIUF key, otherwise it will cause The program is confusing. Do not exceed the maximum speed setting to ensure safe operation of the instrument.

5 If 0.130 or other digital machines are not in use, turn off the power for 10s and then turn it on again. After the set speed is displayed, press the reverse button.

Low speed refrigerated centrifuge maintenance:

1. Regular maintenance. As with other medical instrument maintenance, in addition to the routine inspection and maintenance of the circuit, electronic circuit and mechanical rotating parts, and pay attention to the various indicators for damage and aging.

2. Maintain a balanced balance of the centrifuge cup. Although the centrifuge has a secondary damping device, such as the sample tube placed in the centrifugal chamber is unbalanced, it will cause the centrifuge to shift. After the shutdown is reset, it is necessary to carefully check whether the instrument is normal.

3. Centrifuge cover bolts should be checked frequently to keep them flexible and prevent forced opening or closing. When there is a bad contact, repair and replace it in time. For common faults, it is necessary to strengthen the attention and observe in time.

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