This section will explain how to do an LN2 (Liquid Nitrogen) filling to purifier and magnet shield. Please see the following links to do both fillings:
1. Filling LN2 to the purifier using the outside LN2 tank
2. Filling Magnet Shield with LN2
3. Filling Magnet Helium Space - Wiki Post Portal - Confluence (virginia.edu)
4. Fridge Filling Procedure (Annotated Procedure) - Wiki Post Portal - Confluence (virginia.edu)