low temperature freezer

Ultra low temperature freezer is high special colleges and universities, research laboratories and the necessary equipment, mainly used for the preservation of biological samples or drugs, such as in biological research, frozen food preservation, metal processing, hospitals, epidemic prevention system and military has application. The evaporation of heat released from the condenser in the evaporator is also the beginning of the first start of the ultra low temperature freezer refrigeration principle is generally used in the secondary cooling. Switch on the power, when the panel display temperature than the set temperature is high, the first stage compressor, the first stage refrigeration system begins to work, the secondary cooling system condenser temperature decreased, the secondary refrigerant temperature decreased after several minutes of delay, the secondary cooling system, its ultra-low temperature refrigerator inner wall, which can make the ultra low temperature freezer interior temperature dropped a lot, it all by the first stage refrigeration system is absorbed, the first stage condenser emits heat scattered in the air. When the ultra low temperature refrigerator When the temperature reaches the set temperature, resistance temperature probe to news, control relay loses electric disconnection, two-stage refrigeration system stop working. When the ultra low temperature freezer temperature increased again, beyond the set temperature, ultra low temperature freezer again and repeat the above operation process, so that ultra low temperature freezer temperature is always maintained at around the set temperature. Source: Shanghai Toffon Machinery Equipment Co., Ltd. www.toffon.com

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