Differences

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

--- venting_pumping_object_box [2018/04/25 17:44]
pereira [Vent Object chamber]
+++ venting_pumping_object_box [2018/04/25 17:49]
pereira [Vent Object chamber]
@@ Line 23: / Line 23: @@
 {{:wiki:ventingvalveobjbox.jpg?300|Venting valve}}
+===== Pumping Object chamber =====
+Requirements: PanelMate file **S800Vac**
+  * Verify that Chamber is closed and that manual roughing pump valve located near the intermediate-image chamber is closed (see picture above)
+  * Verify that OBJ SCI is not biased by checking the HV module in dU6
+  * Open **S800Vac** and go to page 01 ("Production Target Box Vacuum System sec 13")
+  * Check "PUMPDOWN STATUS INTERMEDIATE BEAMLINE OBJECT BOX"; it should read "PUMPDOWN STOPPED". Select that box and click on "START PUMPDOWN".
+  * When the pressure in **I191PG** is below 100 mTorr, the Turbo Pump will start automatically through the following sequence:
+        * **I190RV** will be closed
+        * **I190FV** will be opened
+        * **I188GV** will be opened
+  * When the pressure ready by **I191PG** is few mTorr, you can turn on the ion gauge **I188IG**. Good vacuum will take ~30 minutes.

S800 Documentation