Diff: CondenseMixtureDIL

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JSPWiki v2.0.52


Difference between version 21 and version 15:
At line 2 added 7 lines.
+ It is highly recommended to use the automatic condensing scripts in SEA.
+ Click on "sorbpump", when "readyforpump", make sure that the IVC is connected
+ to a running turbo pump, and the valve and the IVC space is open.
+
+ The automatic script is doing a sligthly different condensing procedure than
+ described below.
+
Line 8 was replaced by line 15
- * Cool the 1 K pot to a temperature below 3 K. With the
+ * Cool the VTI ("1 K pot" thermometer) to a temperature below 3 K. With the
Line 11 was replaced by line 18
- pump of about 20 mbar.
+ pump of about 12 mbar.
Lines 27-30 were replaced by lines 34-36
- * Open a little valve 12A (4.0 % to start).
- * While the pressure reading on G1 should always be below about 400 mbar,
- Valve 12A can be opened gradually, and opened completely, when the
- reading on G2 drops below 350 mbar.
+ * Open V12A a little (4 %) to allow the mixture pass the trap slowly.
+ * When the pressure reading on G1 stabilizes or decreases, open valve 12A
+ completely.
Lines 42-43 were replaced by line 48
- and close valve 14 again, but make sure that the pressure on G1 does
- not increase above 350 mbar.
+ and close valve 14 again. Do that several times.
Line 45 was replaced by line 50
- raise above 50 mbar. Leave the valve open until the P1 drops below 0.1.
+ raise above 50 mbar. Leave the valve open until P1 drops below 1.
Lines 52-53 were replaced by lines 57-58
- the flow on the condenser line might falls below 100 (black display below
- the valve panel).
+ the flow on the condenser line might fall below 100 (black display below
+ the valve panel, on DIL1 only).

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