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gas_handling_system [2018/04/09 12:35] pereira [Filling Ion Chamber with Gas] |
gas_handling_system [2018/12/19 10:49] pereira [LabView Control Program] |
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====== Detector gas handling system ====== | ====== Detector gas handling system ====== | ||
- | * [[#General information]] | + | * [[#General information|General information for focal-plane gas handling system]] |
* [[#LabView Control Program]] | * [[#LabView Control Program]] | ||
* [[# | * [[# | ||
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* [[# | * [[# | ||
- | ===== General Information ===== | + | ===== General Information |
- | Required controls and monitoring | + | |
- | * LabView gas handling system application **FPGHS_TCPIP-II.vi** | + | |
- | * 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 | ||
- | ===== LabView Control Program ===== | + | Required controls and monitoring |
+ | * LabView gas handling system application **FPGHS_TCPIP-II.vi** | ||
+ | * PanelMate **S800vac.ui page 07**: Focal Plane Detector | ||
+ | |||
+ | ===== LabView Control Program | ||
To start the gas handling system control application, | To start the gas handling system control application, | ||
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* Ensure **I265GV** is closed (in PanelMate **S800vac.ui page 07**) to isolate focal plane vacuum chamber from the rest of the beamline | * Ensure **I265GV** is closed (in PanelMate **S800vac.ui page 07**) to isolate focal plane vacuum chamber from the rest of the beamline | ||
* Confirm that the focal plane chamber is under vacuum | * Confirm that the focal plane chamber is under vacuum | ||
- | * Confirm that the only open gas handling system valves are **4, 5, 6, 20, 21, and 22** | + | * Confirm that the only open gas handling system valves are **4, 5, 6, 7, 20, 21, 22 and 23** |
* (Check section on [[vacuum control|vacuum control]] for further details.) | * (Check section on [[vacuum control|vacuum control]] for further details.) | ||
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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 and 23** | + | * Close **valves |
* Open **valves 10 and 15** | * Open **valves 10 and 15** | ||
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* Open **valves 5 and 21** | * Open **valves 5 and 21** | ||
- | * **IMPORTANT:** CLOSE **VALVE 25** to protect CRDCs from Ion Chamber pressure | + | * **IMPORTANT**: Before opening valve 8 (next step), |
* Empty Ion Chamber to a pressure at or below the pressure of the CRDCs | * Empty Ion Chamber to a pressure at or below the pressure of the CRDCs |