Precautions during use of ultra-low temperature refrigerator

The maintenance of ultra-low temperature refrigerators is very important, which is related to the life and working efficiency of ultra-low temperature refrigerators . Ultra-low temperature refrigerators are widely used. Ultra-low temperature refrigerators are also called ultra-low temperature freezer and ultra-low temperature storage box. Today we will come together to learn about the precautions in the use of ultra-low temperature refrigerators.

Ultra-low temperature refrigerator Note:

1. Indoor temperature: 5-32 ° C, relative humidity 80% / 22 ° C.

2, from the ground > 10cm. The altitude is below 2000m.

3. It takes 6 hours to reduce from +20 °C to 80 °C.

4. Strong acid and corrosive samples should not be frozen.

5. Always check the closed rubber strip of the outer door.

6, landing four feet steady, level.

7. When there is a power failure prompt, press the stop beep button.

8, the general cooling temperature is set at 60 ° C

9. The power supply voltage 220v (AC) should be stable, and the supply current should be at least 15A (AC) or more.

10. In the event of a power outage, the power switch and battery switch on the back of the refrigerator must be turned off. When the normal power supply is restored, turn the power switch on the back of the refrigerator first, then turn on the battery switch.

11. Note that heat dissipation is very important for the refrigerator. To maintain indoor ventilation and good heat dissipation environment, the ambient temperature should not exceed 30C.

12. Adjust the set temperature to -70 °C in summer, and pay attention to the usual setting.

13. When accessing the sample, the door should not be too large, and the access time should be as short as possible.

14. Note that the samples that need to be accessed frequently should be placed on the top two layers. For samples that need to be stored for a long time and not frequently accessed, please put them on the bottom two layers. This will ensure that the cold air is not excessively lost when the door is opened, and the temperature will not rise too fast.

15. Note that the filter must be cleaned once a month (first suction with a vacuum cleaner, rinse with water, and then dry to reset), the internal condenser must use a vacuum cleaner to suck the dust every two months.

16. Do not use the force to open the door when the door is locked, to prevent the door lock from being damaged.

17. To defrost, only turn off the power to the refrigerator and open the door. When the ice and frost begin to melt, put a clean and easily absorbent cloth on each layer of the refrigerator to absorb and wipe the water (note that there will be a lot of water).

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