| 1015 | Prepare leak checker for leak test. Background leak rate of 1.2E-8 mbar*l/s. |
| | Despite IVC pressure of 4.0E-3 mbar, which is believed to be incorrect, we will commence LN2 blow out. |
| 1131 | Finished blowing LN2. Leak rate steadily increased to 2.8E-8 mbar*l/s. No indication of leak. |
| 1410 | Pressure in Dump is 676mbar. Begin cryocleaning mixture through Cold Trap 2. |
| 1525 | Finish cryocleaning and pump mixture back to Dump. Dump pressure at 752mbar. The issue with Cold Trap 2 appears to be back. 40 lashes for the villagers. |
| 1540 | Pressure in Dump is 752mbar. Begin cryocleaning mixture through Cold Trap 1. |
| 1830 | Interrupted cryocleaning around 45 minutes ago and started pumping mixture into dump. Dump pressure is currently 726 mbar. Mixture has not been fully recovered yet, which is unusual. There seems to be something wrong with the He-3 circulation pump as it is struggling to pump the remaining mixture into the dump. Both G1 & P1 are higher than expected (4 mbar & 22 μbar respectively). Oil in He-3 pump is discoloured, so should be replaced. Should also take the opportunity to run a thorough leak test on the plumbing and check the oil exhaust filter is not clogged up. Shall cryopump the mixture out the He-3 pump's exhaust tomorrow morning. For now, leave mixture to pump into dump overnight in an attempt to collect as much as possible. |