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venting_pumping_intermediate_image_box [2018/12/19 11:54] pereira [Removing gas from Intermediate-image delay PPAC] |
venting_pumping_intermediate_image_box [2018/12/20 15:15] pereira [Filling Intermediate-image delay PPAC with gas] |
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* Check that the detectors are unbiased by opening the [[HV bias|HV GUI]] | * Check that the detectors are unbiased by opening the [[HV bias|HV GUI]] | ||
* Notify the system of the bias-off state by selecting the " | * Notify the system of the bias-off state by selecting the " | ||
+ | * Verify that ion gauge I213IG is off | ||
* Verify that PPACs are in automatic mode with gas removed (**S3_Gas_Handling**) | * Verify that PPACs are in automatic mode with gas removed (**S3_Gas_Handling**) | ||
* The "GH System Status box should read "Auto Mode Gas Removed" | * The "GH System Status box should read "Auto Mode Gas Removed" | ||
- | * If gas is removed but the system is not in the automatic mode, consult the Beam Physicists or Device Physicist. This typically requires to verify that the system is in a controlled status. In particular, the " | + | * If gas is removed but the system is not in the automatic mode, consult the Beam Physicists or Device Physicist. This typically requires to verify that the system is in a controlled status. In particular, the " |
* Confirm that PanelMate box " | * Confirm that PanelMate box " | ||
* Open the gas bottle valve (sitting near the gas handling system) | * Open the gas bottle valve (sitting near the gas handling system) | ||
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* GH System status will indicate "Flow Estab." | * GH System status will indicate "Flow Estab." | ||
* I214BON_CONFIM will change to "PPAC BIAS ASSUMED ON" | * I214BON_CONFIM will change to "PPAC BIAS ASSUMED ON" | ||
- | * The valves status will be: V1 (open), V2 (closed), V3 (closed), V4 (open), V5 (closed), V6 (closed, I214V_NCL (enabled) | + | * The valves status will be: V1 (open), V2 (closed), V3 (closed), V4 (open), V5 (closed), V6 (closed), I214V_NCL (enabled) |
* You can now turn on the detectors | * You can now turn on the detectors | ||