venting_pumping_intermediate_image_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 | ||
|
venting_pumping_intermediate_image_box [2017/06/12 14:54] pereira [Vent focal-plane chamber] |
venting_pumping_intermediate_image_box [2017/06/13 11:43] pereira |
||
|---|---|---|---|
| Line 1: | Line 1: | ||
| - | ===== Venting/ | + | ====== Venting/ |
| The procedures to vent/pump the S800 Intermediate Image box, and/or filling the PPAC detectors with gas must be done carefully to ensure that the PPACs are not damaged. For instance, before venting the chamber, we have to make sure that the PPACs are empty and equalized with respect to the vacuum in the chamber. In order to avoid errors, an automated gas handling system (II-GHS) was designed to perform these tasks safety. The system is schematically illustrated in the figure below. It shows the status of the valves (red: closed, white: open) when the intermediate image chamber is under vacuum and the PPACs are filled with gas: | The procedures to vent/pump the S800 Intermediate Image box, and/or filling the PPAC detectors with gas must be done carefully to ensure that the PPACs are not damaged. For instance, before venting the chamber, we have to make sure that the PPACs are empty and equalized with respect to the vacuum in the chamber. In order to avoid errors, an automated gas handling system (II-GHS) was designed to perform these tasks safety. The system is schematically illustrated in the figure below. It shows the status of the valves (red: closed, white: open) when the intermediate image chamber is under vacuum and the PPACs are filled with gas: | ||
| Line 7: | Line 7: | ||
| {{: | {{: | ||
| - | ==== Vent focal-plane chamber ==== | + | |
| + | |||
| + | |||
| + | |||
| + | |||
| + | |||
| + | |||
| + | ===== Vent focal-plane chamber | ||
| Requirements: | Requirements: | ||
| Line 20: | Line 27: | ||
| * Open **S800Vac** and go to page 03 (" | * Open **S800Vac** and go to page 03 (" | ||
| * Check box " | * Check box " | ||
| - | {{: | + | {{: |
| * In order to begin venting process, select that box and click "BEGIN VENTING PROCEDURE" | * In order to begin venting process, select that box and click "BEGIN VENTING PROCEDURE" | ||
| * Box "VENT STATUS" | * Box "VENT STATUS" | ||
| - | * Turbo gate valve **I214GV** will be automatically closed and pressure in chamber will start rising (as seen in **I215PG**) {{: | + | * Turbo gate valve **I214GV** will be automatically closed and pressure in chamber will start rising (as seen in **I215PG**) {{: |
| - | * When **I215PG** reads atmospheric pressure, select the box "VENT STATUS" | + | * When **I215PG** reads atmospheric pressure, select the box "VENT STATUS" |
| * The status in the box "VENT STATUS" | * The status in the box "VENT STATUS" | ||
| * You can now open the chamber | * You can now open the chamber | ||
venting_pumping_intermediate_image_box.txt · Last modified: 2024/01/12 09:37 by noji
Page Tools
Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Noncommercial-Share Alike 4.0 International
