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vacuum_control [2016/11/09 15:00] pereira [Venting analysis-line lower-dipole section] |
vacuum_control [2016/11/09 15:29] pereira [Venting analysis-line lower-dipole section] |
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- 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. | ||
- | - Go to page 4 (" | + | - Go to page 4 (" |
- Window "VENT STATUS" | - Window "VENT STATUS" | ||
- | - Click on "VENT STATUS" | + | - Click on "VENT STATUS" |
- Walk to the bottom level of the S3 vault, near the intermediate image box. Locate the I226PG Pirani gauge and ensure that it reads rough-vacuum pressure (few militorr). | - Walk to the bottom level of the S3 vault, near the intermediate image box. Locate the I226PG Pirani gauge and ensure that it reads rough-vacuum pressure (few militorr). | ||
- Slowly open the manual valve (see picture below) and verify that the pressure read in I226PG raises slowly. | - Slowly open the manual valve (see picture below) and verify that the pressure read in I226PG raises slowly. | ||
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===== 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 " | 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 " |