This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
gas_handling_system [2018/04/09 12:34] pereira [In Data-U6] |
gas_handling_system [2018/11/28 09:30] pereira |
||
---|---|---|---|
Line 42: | Line 42: | ||
* Ensure **I265GV** is closed (in PanelMate **S800vac.ui page 07**) to isolate focal plane vacuum chamber from the rest of the beamline | * Ensure **I265GV** is closed (in PanelMate **S800vac.ui page 07**) to isolate focal plane vacuum chamber from the rest of the beamline | ||
* Confirm that the focal plane chamber is under vacuum | * Confirm that the focal plane chamber is under vacuum | ||
- | * Confirm that the only open gas handling system valves are **4, 5, 6, 20, 21, and 22** | + | * Confirm that the only open gas handling system valves are **4, 5, 6, 7, 20, 21, 22 and 23** |
* (Check section on [[vacuum control|vacuum control]] for further details.) | * (Check section on [[vacuum control|vacuum control]] for further details.) | ||
Line 72: | Line 72: | ||
* Click the **Valves** tab at the top of the LabView window to return to the overview display of the gas handling system | * Click the **Valves** tab at the top of the LabView window to return to the overview display of the gas handling system | ||
- | * Close **valves 6 and 7** | + | * Close **valves 6** and **7** |
* Open **valve 2**; the flow reading at MFC #1 should jump momentarily | * Open **valve 2**; the flow reading at MFC #1 should jump momentarily | ||
Line 103: | Line 103: | ||
* Click the **Valves** tab at the top of the LabView window to return to the overview display of the gas handling system | * Click the **Valves** tab at the top of the LabView window to return to the overview display of the gas handling system | ||
- | * Close **valve 22 and 23** | + | * Close **valves |
* Open **valves 10 and 15** | * Open **valves 10 and 15** | ||
Line 142: | Line 142: | ||
* Open **valves 5 and 21** | * Open **valves 5 and 21** | ||
- | * **IMPORTANT:** CLOSE **VALVE 25** to protect CRDCs from Ion Chamber pressure | + | * **IMPORTANT**: Before opening valve 8 (next step), |
* Empty Ion Chamber to a pressure at or below the pressure of the CRDCs | * Empty Ion Chamber to a pressure at or below the pressure of the CRDCs |