Differences

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--- mpms-5s_helium_transfer [2008/10/01 13:03] – verstoep
+++ mpms-5s_helium_transfer [2008/10/01 13:05] (current) – verstoep
@@ Line 2: / Line 2: @@
 The Squid should be refilled if Helium levels are below 50%
 ===== Filling =====
@@ Line 10: / Line 11: @@
     -{{images:squid-2-compressor.png}}
   - Open valves between vessel and compressor
-  - Remove fillcap from SQUID. It wil POP out!
+  - Remove fillcap from SQUID. It will POP out!
   - Attach the fill hose (recovery line) between the SQUID and Cryostat.
     -{{images:squid-2-valves.png}}
@@ Line 17: / Line 18: @@
     -{{images:squid-2-helium.png}}
   - Open red valve on He-vessel. Put the large part of the hose into the vessel at average speed.
-  - Wait untill cold gas sputters out the other end of the fill hose (~one minute). You will get a cold flame.
+  - Wait until cold gas sputters out the other end of the fill hose (~one minute). You will get a cold flame.
   - Remove the small cap from the recovery line on the SQUID
-  - Insert the other end of the fill hose in the SQUID. (use heatgun if it gets suck because it got frozen.
+  - Insert the other end of the fill hose in the SQUID. (use heat-gun if it gets suck because it got frozen.
   - Go to the computer and select: utilities->helium fill->start
   - Plug in the power line of the compressor.
   - You are now pumping. It is best to monitor the refill. (It will take about 30 minutes) Pay attention to:
-    - The pressure (read-out on He-Vessel indicator) should not exceed 0.5 Bar. YOu can regulate this by clamping the compressor bypass.
+    - The pressure (read-out on He-Vessel indicator) should not exceed 0.5 Bar. You can regulate this by clamping the compressor bypass.
     - The fill rate (read-out on computer) should be around 1-1.5%/min.
+    - The Vessel Valve should be heated while filling with the heating gun(at half-heating power), to prevent the valve from freezing.
   - There are no instructions yet to stop the filling and disconnect the He-Vessel. Ask for help.
 Original (InkScape) {{wiki:squid.svg.pdf|vector graphic}} (remove pdf extension).