The ultra-low temperature freezer is specialized refrigeration equipment capable of deep-freeze storage at temperatures ranging from -25°C to -150°C. It consists of key components such as a compressor, a cabinet, and a control panel. Proper operation and attention to detail are essential during daily use.

Guidelines for Using Ultra-Low Temperature Refrigerators:

1. Record the freezer temperature daily.

If the temperature falls outside the specified range, adjust the temperature control to return it to the normal range. If the adjustment is ineffective, report the issue for equipment maintenance.

2. Keep the freezer's drainage outlet unobstructed.

Clean the freezer regularly: disconnect the power supply before cleaning, and wipe the interior and exterior with a soft, water-dampened cloth; a neutral detergent may be used if necessary.

3. Regularly defrost it and clean the condenser filter.

To defrost, disconnect the power and leave the door open to allow the frost to melt naturally; strictly avoid prying off frost with hard objects or rinsing it with hot water.

4. Clean the air filter screen every three months; organize and clear out stored specimens and samples once a year.

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