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2014/08/20

1000 Fill LN2 cold trap full.
Finish cryocleaning mixture. Pump mixture to dump.
1115 Finish pumping to dump. Close V6, then all valves on IGH.
1120 Commence pumping on Cold Trap 1 and helium cold trap.
1200 Begin first round of cold trap cleaning.
1230 End first round of cold trap cleaning.
1415 End third round of cold trap cleaning.
1440 Fill LN2 cold trap full.
Commence cryocleaning mixture.
1545 Finish cryocleaning. Pumpadump. Current dump pressure: 627.9mbar.
1600 Commence LHe transfer (16.3%).
1630 Finish Helium transfer (95.3%).
1640 Finish first round of cold trap cleaning.
1720 Finish second round of cold trap cleaning.
1805 Commence condensation with all the mixture (631.5mbar).
1950 Leave to condense overnight. A blockage appears present.
2010 Close valve V9 just to be safe.