Offered in two sizes, Model TSX uses natural refrigerants for lower environmental impact and higher cooling efficiency. Conventional ultra-low temperature freezers use single-speed compressors that cycle on and off, which can result in poor temperature recovery following door openings. The ultra-low temperature freezers utilize the company’s V-Drive technology, which means that when conditions are stable, the drive operates at a low speed to reduce energy consumption while maintaining a uniform temperature. When dealing with frequent door openings or when samples are added to the freezer, the control system detects the activity and increases the drive speed to bring temperatures quickly back to the setpoint.
Thermo Fisher Scientific