Ultra-low Temperature Freezers: Keeping Samples Cold-Very,Very, Cold
In addition to being able to reach and maintain temperatures as low as -86 C, today's ultra-low temperature laboratory freezers need to provide greater energy efficiency, smaller footprints, uniform temperature stability, and alarm system reliability.
In addition to being able to reach and maintain temperatures as low as -86° C, today’s ultra-low temperature laboratory freezers need to provide greater energy efficiency, smaller footprints, uniform temperature stability, and alarm system reliability.
But, according to Ted Andrew, product manager for New Brunswick Scientific, “The ultimate consideration in a ULT freezer purchase has to be reliability. The value of products stored in the freezers can rapidly approach millions of dollars when labor and importance are factored. The purchaser should look at how the units are built, for example, the quality and size of the compressors and the reliability of the door gaskets.”
New Brunswick Scientific
New Brunswick Scientific’s Innova® U101 personal sized -86° C freezer is designed for laboratories that require -80° C capability at the bench, but are short on space. The U101 offers 3.6 cu. ft. of secured storage with a small footprint and low noise level, which allows the unit to be stored under or on a laboratory bench, and can be pushed flush against a wall— allowing the unit to become a seamless and integral part of the laboratory instead of intruding on it. In addition, the U101 comes with a lockable door, pass-code-protected temperature settings, and alarms. Lastly, the U101 is extremely energy efficient and reliable so that yearly operating costs are kept to a minimum.
The Glacier -86° C ultra-low temperature freezers are designed to meet all research, clinical, or industrial application requirements. A microprocessor temperature control system features digital temperature display and a set-point security system. The air-cooled cascade refrigeration system includes a downfeed evaporator, high-capacity air-cooled condenser, and two air-cooled compressors. In addition, the system offers 100% HFC CFC-free refrigerants and a low
47 dba noise rating. A microprocessor-controlled alarm system provides battery backup and remote alarm contacts. Additional features include heavy-duty swivel casters, 3 adjustable shelves, multi-point gasket seals, and claw-like inner door latches.
SANYO green ultra-low freezers provide 25% more energy savings than leading competitors by minimizing carbon
footprint and improving efficiency. The SANYO -86° C V.I.P. ultra low temperature freezers are ideally suited for storage needs that require precise temperature uniformity and reliability. Space-saving high-density V.I.P.® vacuum insulation panel construction allows up to 25% more storage volume by reducing power consumption per 2” box capacity. The green freezer line includes a newly redesigned refrigeration system that results in lower operating cost, greater efficiency, and less impact on the environment.
Revco® Ultima® II cryogenic freezers operate at uniform and stable cryogenic temperatures of -140° C and -150° C, offering a safer and more convenient method for the long-term storage of biological materials. Using advanced mechanical refrigeration technology, the freezers offer advantages over units that rely on liquid nitrogen as a cooling medium. There is greater temperature uniformity throughout the freezer and the interior storage space is maximized, which enables a capacity of up to 21,600 samples. The freezers feature a patented, single compressor orbital refrigeration system with an exclusive CFC-free mixed refrigerant. This provides a reduced operational cost when compared with the operational cost of liquid nitrogen alternatives.