Automated Temperature Monitoring of Freezers and Cryogenic Tanks
By: CAS DataLoggers
CAS DataLoggers provided the automated temperature monitoring solution for a biorepository storing a wide range of life science materials including blood and tissue samples, common and experimental drugs, and many other high-value specimens and materials. Every material stored in the repository's medical refrigerators, freezers and cryogenic tanks required continual temperature monitoring and historical data archiving to ensure the viability of the inventory as well as be compliant with the FDA's Title 21 CFR Part 11 (https://en.wikipedia.org/
The biobank installed 12 Accsense A2-05 Ethernet Wired Temperature Measurement Pods (https://www.dataloggerinc.com/
Specifically designed for measuring temperatures in medical refrigerators, freezers, incubators, and in cryogenic storage, the Accsense A2-05 LAN-wired data loggers each featured inputs for two external RTD temperature probes with a wide range of -100°C (-148°F) to +100°C (+212°F) for use in refrigerators and freezers, and an additional input for 1 thermocouple measuring from -200°C (-328°F) to +400°C (+400°F) for use in their cryogenic storage tanks, placing the probe in the unit's vapor chamber. Each pod included a power adapter and Ethernet cables, supporting power over Ethernet for a lower cost and easier maintenance compared to traditional wiring. In case of a power failure or network connection loss, the Accsense system could keep running for 6 hours on its internal lithium battery, during which the data loggers would continue to buffer data. During outages, the pods could store up to 256 data points until connection was restored, ensuring that the data was continuous. Additionally, the wired pods could be utilized with other Accsense wired and wireless data loggers to further expand the system if desired.
For more information on the Accsense A2-05 Ethernet Wired Temperature Measurement System (https://www.dataloggerinc.com/