LN2 Backup System

An LN2 back-up cooling system is an independent refrigeration system for a ULT freezer. In the event of a power failure or when the freezer temperature rises to the high alarm set point, the LN2 back-up system can be automatically activated to inject LN2 into the chamber to maintain the freezer temperature. The backup system operates on a rechargeable battery in case of loss of the main power supply.