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vacuum_control [2016/11/09 14:57]
pereira [Target Chamber]
vacuum_control [2016/11/09 15:27]
pereira [Venting analysis-line lower-dipole section]
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   - Verify that the target area is vented.   - Verify that the target area is vented.
-  - Ensure that the ion gauge I225IG is turned off.+  - Using the EMIS controllers in the middle level of the S3 vault (see figure above), ensure that the ion gauge I225IG is turned off.
   - Ensure that gate valves I246GV (between lower-dipole section and target area) and I215GV (between intermediate image area and the lower-dipole section) are closed.   - Ensure that gate valves I246GV (between lower-dipole section and target area) and I215GV (between intermediate image area and the lower-dipole section) are closed.
   - Open S800vac with PanelMate.   - Open S800vac with PanelMate.
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 +{{:wiki:panelmates800vac-ventinglowerdipoles.jpg?850|PanelMate s800va (page 16) displaying venting status of lower-dipole section}}
 +
 +
 +{{:wiki:manualvalve-lowerdipoles.jpg?850|Manual venting valve of lower-dipole section}}
 ===== Spectrograph ===== ===== Spectrograph =====
 This system is pumped with cryopumps. Please do not vent this section if the target chamber is under vacuum pressure. The pressure gradient between both sections would "push" the structure of the spectrograph beam line towards the target chamber, potentially damaging the bellows of the line. This system is pumped with cryopumps. Please do not vent this section if the target chamber is under vacuum pressure. The pressure gradient between both sections would "push" the structure of the spectrograph beam line towards the target chamber, potentially damaging the bellows of the line.
vacuum_control.txt ยท Last modified: 2019/10/17 10:43 by pereira