The reliability of an Ultra-Low Freezer (ULT) is dependent on its ability to maintain the temperature-sensitive specimens it needs to store at their intended temperature. Various performance parameters such as temperature uniformity/stability (ΔT), door opening recovery time (DOR), hold over time, and Pull-Down Time play a critical role in defining the reliability of the Ultra-Low Freezers. Especially during adverse events such as intensive door openings, it is critical to ensure that the internal storage temperature recovers quickly to rapidly reach the intended storage temperature range.
B Medical Systems’ Ultra-Low Freezers are manufactured using advanced cooling technology and offer superior sample safety. This analysis reviews the door opening recovery for various durations and assesses the pull down time of the B Medical Systems’ Ultra-Low Freezer U201.