| State | Description |
|---|---|
| Idle | No current activity or lockout |
| NoFill | No current activity, new fills locked out |
| Venting | Venting dewar 2 in preparation for a fill |
| Filling | Filling dewar 2 from dewar 1 |
| Alarm | A datum has caused Venting or Filling to abort |
| Limit | Value |
|---|---|
| Venting Timeout | 15 minutes |
| Filling Timeout | 40 minutes |
| Dewar 1 empty weight | 350 pounds |
| Dewar 2 full weight | 600 pounds |
| Dewar 2 filling pressure | 10 psi |
| NoFill start time | 1400Z |
| NoFill end time | 1800Z |