venting_pumping_intermediate_image_box
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| Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
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venting_pumping_intermediate_image_box [2024/01/11 09:54] noji [Evacuating the Chamber] |
venting_pumping_intermediate_image_box [2024/01/11 10:37] noji [Venting the Chamber] |
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| ===== Emptying Detectors ===== | ===== Emptying Detectors ===== | ||
| - Set “PPAC Setpoint” to 0 Torr. | - Set “PPAC Setpoint” to 0 Torr. | ||
| - | - Click **EMPTY** on the “GHS_II-PPAC_Main” page to begin pumping out the gas quickly. | + | - Click **EMPTY** on the “GHS_II-PPAC_Main” page to open valves #3 and #4 which will allow for pumping out the gas quickly. |
| - | - When “PPAC Pressure” reads < 0.1 Torr, click **MAN** and then **AUTO**. This will release the remaining gas into the diagnostics box. | + | - When “PPAC Pressure” reads < 0.1 Torr, turn off IG and click **MAN** and then **AUTO**. This will open valve #6 to release the remaining gas into the diagnostics box. |
| - Monitor D2340 pumping station and ensure the TMP stays on and TGV remains open. If not, contact the Vacuum Operation group. | - Monitor D2340 pumping station and ensure the TMP stays on and TGV remains open. If not, contact the Vacuum Operation group. | ||
| - | - Valves #1-5 should be closed and valve #6 should remain open. From this state click PUMP to enter pump mode and leave the system in this state until it is ready to be filled. | + | - Valves #1-5 should be closed and valve #6 should remain open. From this state click **VENT** and then **PUMP** to enter pump mode and leave the system in this state until it is ready to be filled. |
| - | * Jorge noted on 2/12/2023 that this step did not work; he reported that when he clicked **PUMP** nothing happened. Instead, he had to “manually” enter the PV name associated with this command and changed from 0 to 1. He speculated that this was most likely due to a CS Studio problem. | + | |
| ===== Venting the Chamber ===== | ===== Venting the Chamber ===== | ||
| + | From the S800 Main Vacuum page, go to the Intermediate Image - RBT_BTS32 D2430 Pumping Station page, and ensure | ||
| + | * that the PPACs have been unbiased, | ||
| + | * that this pumping station has been isolated by having the gate valves **D2426 BGV** and **D2436 BGV** closed, and that the IG has been turned off, and | ||
| + | * that the turbo pump gate valve **TVG** is closed. | ||
| + | |||
| + | The TMP can be turned off at this time. | ||
| + | |||
| + | To vent the chamber: | ||
| + | - Put the GHS in vent mode by clicking **VENT** (valves #5 and #6 are open), | ||
| + | - monitor **RBT_BTS32: | ||
| + | - close **RV**, the valve to the roughing pump, and | ||
| + | - open **Vent** valve to start venting. | ||
| + | |||
| + | The PPAC pressure S800_GHS: | ||
| + | RBT_BTS32: | ||
| ===== Evacuating the Chamber ===== | ===== Evacuating the Chamber ===== | ||
venting_pumping_intermediate_image_box.txt · Last modified: 2024/01/12 09:37 by noji
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