Use and maintain ultra-low temperature refrigerator

Ultra low temperature refrigerator is also known as ultra low temperature freezer, ultra low temperature storage box. According to the style can be divided into vertical ultra-low temperature refrigerator and horizontal ultra-low temperature refrigerator; According to the use can be divided into laboratory ultra-low temperature refrigerator and industrial ultra-low temperature refrigerator. The temperature range is roughly from -40℃ to -150℃.

Ultra-low temperature refrigerator is a necessary instrument in biochemistry and molecular biology laboratory, mainly used for the preservation of reagents, biological samples or drugs. Widely used, such as biological research, metal processing, hospital pharmaceutical companies, epidemic prevention systems, military and so on.

What are the differences between horizontal and vertical ultra-low temperature refrigerators?

First of all, the appearance is different, the opening direction is different. Horizontal ultra-low temperature refrigerator opens up. Upright refrigerators are like freezers that open forward and have partitions inside.

Secondly, bearing performance: horizontal than vertical refrigerator strong.

Finally put in and take out the sample reagent: vertical refrigerator is suitable for frequent operation, horizontal refrigerator is suitable for long-term storage.

The precautions for using ultra-low temperature refrigerator are as follows. Attention to heat dissipation is very important for the refrigerator. Keep indoor ventilation and good heat dissipation environment. The ambient temperature cannot exceed 30 ° C. Before placing items in the refrigerator, ensure that the temperature in the box has dropped sufficiently, and then put items in batches to prevent temperature rise. Do not open the door too wide when storing samples, and keep the storage time as short as possible. It should be noted that the frequently visited samples should be placed on the upper layer, and the infrequently visited samples for a long time should be placed on the lower layer.

The maintenance of ultra-low temperature refrigerator is particularly important for prolonging its life and normal use. The inaccuracy of temperature control will often lead to the damage of the storage, greatly affect the experimental results, and then affect the normal progress of the research work.

The correct way is to use a dry cloth to wipe a small amount of dust inside and outside the refrigerator and accessories. However, do not rinse the interior and upper parts of the refrigerator, otherwise it will damage the insulation material and cause failure. Compressors and other mechanical components do not require lubricating oil. Be careful when cleaning the fan behind the compressor. Safety check after cleaning to ensure that the refrigerator is plugged in properly and correctly; Ensure that the plug is not abnormally hot; Make sure the power cord and distribution wires on the back of the refrigerator are not broken or chipped.