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vacuum_control [2016/11/09 15:29]
pereira [Venting analysis-line lower-dipole section]
vacuum_control [2016/11/09 15:30]
pereira [Venting analysis-line lower-dipole section]
Line 56: Line 56:
   - Go to page 4 ("lower beamline dipoles vacuum system, section 16")   - Go to page 4 ("lower beamline dipoles vacuum system, section 16")
   - Window "VENT STATUS" should be green and display "GOOD VACUUM"   - Window "VENT STATUS" should be green and display "GOOD VACUUM"
-  - Click on "VENT STATUS" and select "BEGIN VENTING PROCESS". The I225GV turbo gate valve will be automatically closed (see figure below). However, the venting process won't be complete until you open the manual valve. +  - Click on "VENT STATUS" and select "BEGIN VENTING PROCEDURE". The I225GV turbo gate valve will be automatically closed (see figure below). However, the venting process won't be complete until you open the manual valve. 
-  - 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, right downstream of the last two dipoles of the analysis line. 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.
   - After the section is vented (atmospheric pressure) close the manual gate valve.   - After the section is vented (atmospheric pressure) close the manual gate valve.
vacuum_control.txt · Last modified: 2019/10/17 10:43 by pereira