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venting_pumping_intermediate_image_box [2024/01/11 10:07] noji [Venting the Chamber] |
venting_pumping_intermediate_image_box [2024/01/11 10:29] noji [Emptying Detectors] |
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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, click **MAN** and then **AUTO**. This will 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. | ||
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===== 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 | + | From the S800 Main Vacuum page, go to the Intermediate Image - RBT_BTS32 D2430 Pumping Station page, and ensure |
- | * that the gate valves | + | * that the PPACs have been unbiased, |
+ | * that this pumping station has been isolated by having | ||
* that the turbo pump gate valve TVG is closed. | * that the turbo pump gate valve TVG is closed. | ||
To vent the chamber: | To vent the chamber: | ||
- | - Monitor **RBT_BTS32: | + | - Monitor **RBT_BTS32: |
- close **RV**, the valve to the roughing pump, and | - close **RV**, the valve to the roughing pump, and | ||
- open **Vent**. | - open **Vent**. |