This shows you the differences between two versions of the page.
Both sides previous revision Previous revision | Next revision Both sides next revision | ||
installation_fp_sci [2018/04/09 12:10] pereira [Vent focal-plane chamber] |
installation_fp_sci [2018/04/09 12:33] pereira [Pumping focal-plane chamber] |
||
---|---|---|---|
Line 52: | Line 52: | ||
* When pressure in the chamber (from **I261PG**) gets below 100 mTorr (at least 30 min), **I260RV** will close. Foreline valve **I260FV** will open followed by the turbo gate valve **I260GV**. | * When pressure in the chamber (from **I261PG**) gets below 100 mTorr (at least 30 min), **I260RV** will close. Foreline valve **I260FV** will open followed by the turbo gate valve **I260GV**. | ||
* Wait for few hours until vacuum is good. You can then turn on the ion gauge **I264IG** | * Wait for few hours until vacuum is good. You can then turn on the ion gauge **I264IG** | ||
- | + | * Close the CRDC and Ion Chamber venting valves **7** and **23** in the [[gas_handling_system# |