Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revisionNext revisionBoth sides next revision | ||
pld:start [2011/07/26 16:32] – janet | pld:start [2011/10/15 08:40] – janet | ||
---|---|---|---|
Line 30: | Line 30: | ||
The Thermionics chamber is set up so that in event of a power failure, the valves between the roughing and turbo pumps will remain closed and the pumps will not turn back on when power is restored. | The Thermionics chamber is set up so that in event of a power failure, the valves between the roughing and turbo pumps will remain closed and the pumps will not turn back on when power is restored. | ||
- | If you discover that the power has gone out while the pressure is still fairly low (10< | + | If you discover that the power has gone out while the pressure is still fairly low (10< |
The Edwards roughing pump on the main chamber frequently fails to start. | The Edwards roughing pump on the main chamber frequently fails to start. | ||
Line 61: | Line 61: | ||
Check on the sample holder screw (which one?) | Check on the sample holder screw (which one?) | ||
heating | heating | ||
+ | |||
+ | {{: | ||
+ | {{: | ||