Gautam, Aaron, Chub & Steve,
ETMY heavy door replaced by light one.
We did the following: measured 950 particles/cf min of 0.5 micron at SP table, wiped crane and it's cable, wiped chamber,
placed heavy door on clean merostate covered stand, dry wiped o-rings and isopropanol wiped Aluminum light cover
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Gautam, Aaron, Chub and Steve,
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Vent 80 is nearly complete; the instrument is almost to atmosphere. All four ion pump gate valves have been disconnected, though the position sensors are still connected,and all annulus valves are open. The controllers of TP1 and TP3 have been disconnected from AC power. VC1 and VC2 have been disconnected and must remained closed. Currently, the RGA is being vented through the needle valve and the RGA had been shut off at the beginning of the vent preparations. VM1 and VM3 could not be actuated. The condition status is still listed as Unidentified because of the disconnected valves.
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The vent 81 is completed.
4 ion pumps and cryo pump are at ~ 1-4 Torr (estimated as we have no gauges there), all other parts of the vacuum envelope are at atm. P2 & P3 gauges are out of order.
V1 and VM1 are in a locked state. We suspect this is because of some interlock logic.
TP1 and TP3 controllers are turned off.
Valve conditions as shown: ready to be opened or closed or moved or rewired. To re-iterate: VC1, VC2, and the Ion Pump valves shouldn't be re-connected during the vac upgrade.
Thanks for all of your help.
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