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2014/08/21

0015 Pressures in G1 & G2 are 159 mbar & 526 mbar respectively. Mixing chamber temperature 3.97 K. Situation doesn't look good. This would indicate a blockage.
1045 Pressures in G1 & G2 are 148 mbar & 525 mbar respectively. Although little change from 10.5 hours ago, there doesn't appear to be a leak on the He-3 pump's exhaust, which is good news. Mixing chamber temperature slightly higher at 3.99 K.
Fill N2 cold trap full.
1050 Pressure in G1 has decreased to 143 mbar - not sure what to make of that. Mixing chamber temperature and G2 pressure unchanged.
Close cold trap 1 speedivalve. Let's see if that makes any difference to the pressure in G1.
1155 No change to pressures or temperatures. Commence pump to dump for warm up process. The villagers elate.
1500 Turn on Mixing Chamber heater to aid in warm up.
1515 Turn up Mixing Chamber heater to 20mW.