What should I pay attention to when buying an ultra-low temperature refrigerator

What should I pay attention to when buying an ultra-low temperature refrigerator

One, understand the needs

　　 First of all, you have to understand what your needs are. What type of materials do you plan to store? Do you need to access the samples every day, or keep them for a long time? There are currently several designs of ultra-low temperature refrigerators, which vary in size, and are also different in storage capacity, floor space, and convenient access. Common refrigerator styles include vertical, horizontal, desktop, etc. If used frequently, a vertical ultra-low temperature refrigerator is convenient for access, while a horizontal refrigerator is suitable for long-term storage of materials that are not frequently used. If space is limited, a desktop ultra-low temperature refrigerator is also a good choice.

　　 2. High efficiency and energy saving

　　 Everyone knows that ultra-low temperature refrigerators consume a lot of energy because they work hard and maintain extremely low temperatures; therefore, power consumption is of course an important consideration in your decision-making process. According to a report from the US Department of Energy, a traditional -80oC refrigerator consumes approximately 22 kWh of electricity per day. However, the good news is that some companies have innovated the design and function of ultra-low temperature refrigerators, making them reliable in quality, energy-saving and environmentally friendly.

　　 Compressor design, insulation and cabinet design improvements have made ultra-low temperature refrigerators more efficient and energy-saving. Some models are designed to reduce energy consumption by 59%. At the same time, pay attention to the outer door seal when purchasing, because the outer door is the fragile part of the entire refrigerator while maintaining the cold air in the refrigerator. Other improvements include replacing traditional polyurethane foam with vacuum insulation panels, creating a better isolation environment. This change also makes the wall of the ultra-low temperature refrigerator thinner, in other words, the storage space in the refrigerator is larger.

　　 Three, spare battery

　　 Power failure is sometimes inevitable. Therefore, when purchasing a refrigerator, you should know in advance what kind of protection your samples will receive if the power fails. Instant backup protection and a good monitoring and alarm system means that you will not lose valuable samples, and you can complete the next experiment after a power failure. Some manufacturers provide backup batteries, which can also provide electricity in the event of a power failure or cleaning/maintenance/defrosting, ensuring alarm and temperature display. Some ultra-low temperature refrigerators are also equipped with an optional chart recorder to provide independent temperature records. Some models also provide automatic reset, which restarts the refrigerator at random 15-second intervals to protect the microprocessor from damage.

　　 Fourth, don't let the air conditioner run away

　　 If you plan to access your samples frequently in a short period of time, whether you can easily open and reopen the refrigerator is an important consideration. For example, there is a door that can be opened easily and can be operated with one hand. These are all options worth considering. In addition, some refrigerators have heating holes to release vacuum and prevent negative pressure, so that the outer door can be opened again quickly. These functions are useful for researchers who need to remove frozen materials regularly.

　　 Five, easy maintenance

　　 Regular maintenance can reduce the energy consumption of the ultra-low temperature refrigerator and help it reach the set temperature. According to Eppendorf's data, an unmaintained refrigerator will increase energy consumption by 12%-25% compared to a well-maintained refrigerator, and the annual cost will increase by $280. When purchasing an ultra-low temperature refrigerator, you may want to pay attention to the features that are easy to maintain, such as frost-free gaskets and front-mounted air filters for easy cleaning and replacement. In addition, the inner door can be removed without tools, which is convenient for defrosting and cleaning.

　　 Six, warranty terms

　　 No one hopes that the new ultra-low temperature refrigerator will break after one or two years of use, but this kind of thing is possible. Therefore, be sure to check the warranty and labor terms of the parts when purchasing, and discuss with the sales representative to see what the warranty terms cover.

　　 When buying an ultra-low temperature refrigerator, you may have many choices. In order to avoid suffering from choice syndrome, the following points can be considered in the decision-making process:

　　 Value energy consumption, but don't compromise on performance and reliability. Your samples are precious, and the environment in which they are stored is equally important.

　　 Carefully check the product information provided by the manufacturer in order to better understand the different functions and options.

　　 Talk to the sales representative to find out which ultra-low temperature refrigerators can better meet your needs.