venting_pumping_object_box
Differences
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 | ||
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venting_pumping_object_box [2018/05/03 09:10] pereira |
venting_pumping_object_box [2023/05/16 12:23] swartzj |
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| * Open **S800Vac** and go to page 01 (" | * Open **S800Vac** and go to page 01 (" | ||
| * Verify that OBJ SCI is not biased: | * Verify that OBJ SCI is not biased: | ||
| - | * Check that the detectors | + | * Check that the detectors |
| * Notify the system of the bias-off state by selecting the " | * Notify the system of the bias-off state by selecting the " | ||
| * Isolate chamber by closing gate valves **I177GV** and **I190GV** | * Isolate chamber by closing gate valves **I177GV** and **I190GV** | ||
| * [[Vacuum control|Turn off]] ion gauge **I188IG** | * [[Vacuum control|Turn off]] ion gauge **I188IG** | ||
| * Check box " | * Check box " | ||
| + | * Go to the S800 OBJ station and make sure that the manual valve (see figure below) is closed. | ||
| + | |||
| {{: | {{: | ||
| * In order to begin venting process, select box "VENT STATUS" | * In order to begin venting process, select box "VENT STATUS" | ||
| * Box "VENT STATUS" | * Box "VENT STATUS" | ||
| * Turbo gate valve **I188GV** will be automatically closed | * Turbo gate valve **I188GV** will be automatically closed | ||
| - | * Vent valve **I190VV** will be automatically opened. However, the pressure in the chamber (ass seen in **I191PG** will not change because we need to open the manual venting valve | + | * Vent valve **I190VV** will be automatically opened. However, the pressure in the chamber (as seen in **I191PG** will not change because we need to open the manual venting valve) |
| * Go to the S800 OBJ station and slowly open the manual valve (see figure below). You can see the pressure rising in the Granville-Phillips 275 Mini-Convectron display located on top of the OBJ box. | * Go to the S800 OBJ station and slowly open the manual valve (see figure below). You can see the pressure rising in the Granville-Phillips 275 Mini-Convectron display located on top of the OBJ box. | ||
| * When **I191PG** reads atmospheric pressure select the box "VENT STATUS" | * When **I191PG** reads atmospheric pressure select the box "VENT STATUS" | ||
venting_pumping_object_box.txt ยท Last modified: 2024/02/06 10:40 by noji
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