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gas_handling_system [2017/06/07 13:13] pereira [Removing Gas from Focal Plane Detectors] |
gas_handling_system [2018/04/09 12:34] pereira [In Data-U6] |
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* PanelMate **S800vac.ui page 07**: Focal Plane Detector | * PanelMate **S800vac.ui page 07**: Focal Plane Detector | ||
- | The gas handling systems for both Focal Plane gas-filled detectors – the [[Detectors# | + | The gas handling systems for both Focal Plane gas-filled detectors – the [[Detectors# |
Note that since the same roughing pump drives the gas handling systems for both gas-filled detectors, extra precautions must be taken to protect one detector from the pressure of the other detector. The fact that the same pump drives both systems is not indicated on the graphics for the LabView control application | Note that since the same roughing pump drives the gas handling systems for both gas-filled detectors, extra precautions must be taken to protect one detector from the pressure of the other detector. The fact that the same pump drives both systems is not indicated on the graphics for the LabView control application | ||
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* The display unit for the pressure at the pump has a needle indicator and is mounted under the [[Stations# | * The display unit for the pressure at the pump has a needle indicator and is mounted under the [[Stations# | ||
* Ensure that the main valves on the gas bottles are open (see pictures below) | * Ensure that the main valves on the gas bottles are open (see pictures below) | ||
+ | * Open valves downstream of regulators in each bottle | ||
* Ensure that the gas bottles are not empty | * Ensure that the gas bottles are not empty | ||
* The gas regulators are not normally adjusted. They should all be set to provide a pressure around 20 psi | * The gas regulators are not normally adjusted. They should all be set to provide a pressure around 20 psi | ||
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* Click the **Valves** tab at the top of the LabView window to return to the overview display of the gas handling system | * Click the **Valves** tab at the top of the LabView window to return to the overview display of the gas handling system | ||
- | * Close **valve 6** | + | * Close **valves |
* Open **valve 2**; the flow reading at MFC #1 should jump momentarily | * Open **valve 2**; the flow reading at MFC #1 should jump momentarily | ||
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* Click the **Valves** tab at the top of the LabView window to return to the overview display of the gas handling system | * Click the **Valves** tab at the top of the LabView window to return to the overview display of the gas handling system | ||
- | * Close **valve 22** | + | * Close **valve 22 and 23** |
* Open **valves 10 and 15** | * Open **valves 10 and 15** | ||
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* Close **valves 8 and 24** | * Close **valves 8 and 24** | ||
- | * Open **valves 6 and 22** | + | * Open **valves 6, 7, 22 and 23** |
- | * Enter S3 vault and close valves downstream of regulator | + | * Enter S3 vault and close valves downstream of regulators |
===== Tracking Gas bottles pressures ===== | ===== Tracking Gas bottles pressures ===== |