Low-temperature refrigerators are widely used in the fields of biological products, chemicals, food, pharmaceuticals, etc., and are mainly used for long-term storage and protection of perishable items.
Selection points
1. Temperature range: The temperature range of low-temperature refrigerators is generally between -40°C and -86°C, and an appropriate temperature range needs to be selected according to the experimental requirements.
2. Capacity: Choose the appropriate capacity of the low-temperature refrigerator according to the experimental needs. Generally, you should choose a suitable capacity to avoid waste caused by too small or too large capacity or the experiment cannot be carried out.
3. Refrigeration method: There are usually two refrigeration methods for low-temperature refrigerators: compressor refrigeration and absorption refrigeration, and the appropriate refrigeration method needs to be selected according to the experimental requirements.
4. Material: The material of the low-temperature refrigerator should have high corrosion resistance and stability, and stainless steel is generally used.
5. Temperature control method: There are usually two types of temperature control methods for low-temperature refrigerators: digital control and mechanical control. Digital control is more accurate and reliable, but the price is higher. It is necessary to choose an appropriate temperature control method according to the experimental needs.
6. Safety: Low-temperature refrigerators need to have good safety performance, such as over-temperature protection, leakage protection and other safety functions.
Precautions
1. Before use, you need to check whether the equipment is in good condition, and confirm whether the temperature controller and power cord are normal.
2. When using, it is necessary to operate according to the instructions to avoid equipment damage or experiment failure caused by excessive use or improper operation.
3. Avoid overloading during use to avoid damage or danger to the equipment.
4. The interior of the low-temperature refrigerator should be placed neatly to avoid improper placement from affecting the experimental results.
5. The low-temperature refrigerator needs to be kept dry during use to prevent moisture from entering the equipment and affecting the experimental results.
6. When using a low-temperature refrigerator, avoid putting flammable or explosive items inside the device to ensure safe operation.
7. It is necessary to regularly check the safety of the low-temperature refrigerator, such as checking whether the door seal and the refrigeration pipeline are intact, so as to ensure the normal operation and safe use of the equipment.
8. After the low-temperature refrigerator is not used for a long time, it is necessary to clean the inside in time and preheat it before reusing it.
