Differences

This shows you the differences between two versions of the page.

--- venting_pumping_intermediate_image_box [2024/01/11 16:21]
noji [Venting/pumping II chamber & emptying/filling gaseous detectors]
+++ venting_pumping_intermediate_image_box [2024/09/26 08:50] (current)
pereira [Evacuating the Chamber]
@@ Line 48: / Line 48: @@
 The PPAC pressure S800_GHS:PI_D2431:V_RD_AB should closely follow the chamber pressure
 RBT_BTS32:BPG_D2430:VP_RD up to about 10 Torr, which is the upper limit of the range of the gauge for S800_GHS:PI_D2431:V_RD_AB.
-===== Evacuating the Chamber =====
+===== Pumping down the Chamber =====
 Ensure
@@ Line 69: / Line 69: @@
   - Be sure to go back to S3 and close the manual valve.
 ===== Filling and Running Detectors =====
-  - If in Vent Mode, click **PUMP** then click **RUN** to enter Run Mode.
+  - If in Vent Mode, click **PUMP** then click **RUN** to enter Run Mode. The valves #1 opens and #3 remains open (#5 and #6 will be closed, and the GHS lines will be isolated from the chamber).
   - If in Pump Mode, click **RUN** to enter Run Mode.
   - Plot and monitor IG_D2430:VP_RD while filling. Ion gauge reading will increase but should remain <1E-5 Torr when PPACs are running at full pressure.

S800 Documentation