In the last decade, sample security awareness became popular after Dual Cooling Systems appeared in the market utilizing auto cascade compressors, which are capable of reaching between -70 to 80☌. By adding LN2 and CO2 backup systems, an increase in the level of security occurs in the case of the failure of a backup generator. Q: What, if any, safeguards are in place to maintain the temperature of ULTs in the event of power outages or other circumstances?Ī: Today, most facilities have their ULT freezers on backup generators to prevent any losses in the event of a power outage. Sadly, when luck runs out and users are stuck in these complicated situations, there is often nothing to help them. Any scientist who holds a fair amount of user experience can tell you that such issues hold no predictability: they have just as much a chance of occurring in the middle of a Monday than they do at 11 pm on a Saturday. Ideally, a monitoring system would be able to resolve both these issues as well as offer a human point of view to help support users constantly, no matter the time. Sadly, to this day, no monitoring system has been able to truly forecast the future and to predict potential failure. Often, as soon as an alarm gets triggered, regardless of the level of sophistication the monitoring system holds, the intervention time is what plays a crucial role. Secondly, monitoring doesn’t offer any help when an issue occurs with the freezers, leaving users in a state of helplessness or worse, in a position in which they may lose vital samples. Q: Are there unique challenges with monitoring lab freezers or ultralow temperature (ULT) devices compared to other types of lab equipment?Ī: This is a difficult question due to the fact that two parameters must be evaluated: firstly, that most ULT freezers are located in basements with poor internet signal or in facilities that don’t allow data transmission to flow easily. Managing editor Lauren Everett speaks with cold storage expert Jean Fallacara about the current limitations of remote monitoring systems for laboratory freezers and what new developments are emerging to combat these issues.
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