1. Prevent the contamination of low-speed refrigerated centrifuges by radioisotopes
1 Carefully observe the sample tube for cracks or trachoma to avoid liquid leakage during centrifugation;
2 Put the plastic tube of the centrifuge cup to be light. Prevent liquid spillage: If the liquid enters the centrifuge cup and causes contamination in the centrifuge chamber, the centrifuge cup should be taken out immediately, rinsed repeatedly with tap water and dried;
3 The centrifuge chamber should also be thoroughly cleaned.
2, to maintain the stability of the environment inside and outside the centrifuge
The centrifuge should be placed horizontally, 10cm above the wall, and maintain a good ventilation environment, protected from direct exposure of heat and sunlight. The room temperature should not exceed 30 °C, 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.
3. Prevent the aging of the sealing ring. The upper part of the inner cavity of the centrifuge is equipped with a rubber sealing ring at the contact point of 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.
4. 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.
5. 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=60rpm), 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.
6. If there is 0 or other digital machine in use, it should be turned off and turned off for 10s, then restarted. After the set speed is displayed, press the reverse button.
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