S800 Documentation

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vacuum_control [2014/11/14 13:06]
pereira [Spectrograph] 		vacuum_control [2014/11/17 10:09]
pereira [General Information]
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 ===== General Information ===== ===== General Information =====
  
-Vacuum control and monitoring of the S800 is provided through the **S800vac** PanelMate. (Analysis line vacuum control pages are also available in the **A1900_Vacuum** PanelMate.) The vacuum system is divided in consecutive sections separated by gate valves. Each page in **S800vac** corresponds to a different vacuum section:+Vacuum control and monitoring of the S800 is provided via NCS application PanelMate, through the **S800vac** file, in directory \\exp\files\control\ncsdata\General\Qt\Templates. (Analysis line vacuum control pages are also available in the **A1900_Vacuum** PanelMate.) The vacuum system is divided in consecutive sections separated by gate valves. Each page in **S800vac** corresponds to a different vacuum section:
  
   * Page 1: **Vacuum section 13** corresponds to the segment of the beam line that includes the **object-box** between ion gauges I177GV and I190GV. The ion-gauge monitoring the vacuum pressure in the object box is **I188IG**   * Page 1: **Vacuum section 13** corresponds to the segment of the beam line that includes the **object-box** between ion gauges I177GV and I190GV. The ion-gauge monitoring the vacuum pressure in the object box is **I188IG**
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 The venting and pumping of the target area vacuum chamber is taken care of by the experimenters. Since this chamber is always shifting between different configurations, the status of the system as displayed on the PanelMate control page may not be reliable at any given time. The readout from the ion gauge should be fed into the PanelMate for either configuration.  The state display and the ability to control the two beamline gatevalves, I246GV and I255GV, should also be functioning in PanelMate for either configuration, but the interlock status display and the interlock functionality to protect from opening either gatevalve at the wrong time may not be set up correctly. The venting and pumping of the target area vacuum chamber is taken care of by the experimenters. Since this chamber is always shifting between different configurations, the status of the system as displayed on the PanelMate control page may not be reliable at any given time. The readout from the ion gauge should be fed into the PanelMate for either configuration.  The state display and the ability to control the two beamline gatevalves, I246GV and I255GV, should also be functioning in PanelMate for either configuration, but the interlock status display and the interlock functionality to protect from opening either gatevalve at the wrong time may not be set up correctly.
  
 +**Important note**: Ensure that the experimenters never pump the chamber down if the spectrograph vacuum section is vented. The pressure gradient between both sections would "push" the structure of the spectrograph beam line towards the target chamber, producing critical damage in the bellows of the line.
 ===== Spectrograph ===== ===== Spectrograph =====
-This system is pumped with cyropumps. 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, producing critical damage in 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, producing critical damage in the bellows of the line.
  
 ===== Focal Plane Box ===== ===== Focal Plane Box =====
vacuum_control.txt ยท Last modified: 2019/10/17 10:43 by pereira

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