Differences

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--- vacuum_controll [2026/05/09 12:17] – [Starting Procedure] ari
+++ vacuum_controll [2026/05/09 12:36] (current) – [Pressurization Checklist] ari
@@ Line 6: / Line 6: @@
 ===== Depressurization Checklist =====
-)      Ensure that cryocooler is off!
+  - Ensure that cryocooler is off and cryostat is at room temps!
-)	Turn on main power switch on HiCube Eco 80
+  - Turn on main power switch on HiCube Eco 80
-)	Wait for DCU to complete self-test of system
+  - Wait for DCU to complete self-test of system
-)	Check if venting is off under parameter 012 “Enable vent” => off
+  - Check if venting is off under parameter 012 “Enable vent” => off
-)	Turn on roughing pump: Select parameter 010 “Pumping station” => on
+  - Turn on roughing pump: Select parameter 010 “Pumping station” => on
-)	Once we reach pressures !!< 5 mbar!!, select parameter 023 “ motor pump” and turn on turbomolecular pump
+  - Once we reach pressures !!< 5 mbar!!, select parameter 023 “ motor pump” and turn on turbomolecular pump
-)      Ideally, we want pressure to drop to lower 10^(-6) mbar range
+  - Ideally, we want pressure to drop to lower 10^(-6) mbar range
+===== Pressurization Checklist =====
+  - Turn cryocooler off and wait for temperatures to reach ~ 280 K
+  - Turn off Turbomolecular pump and wait for RPMs to go to zero
+  - Turn off roughing pump
+  - Vent the system
 ===== TPG 361 =====

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