Differences

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--- stm:safety_and_precautions [2006/03/10 10:09] – (old revision restored) 127.0.0.1
+++ stm:safety_and_precautions [2006/03/22 10:05] (current) – external edit 127.0.0.1
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+====== Safety and Precautions ======
+  - Use protective gloves when handling cryogenic liquids.
+  - Be sure that you've been told by someone IN CHARGE how to handle cryogenic liquids.
+  - Never power up the magnet if the He level meter (HLG200) indicates 300mm or less.
+  - Leave enough "escape room" when you are working around the cryostat in case of overpressurised cold gases.
+  - Cryostat specific: always leave the VTI valve open to the recovery line unless you are cooling down.
+  - Cryostat specific: always check that the Helim bath is connected to recovery (also check the recovery valve above the computer desk, it should be open).
+  - Always leave the Helium storage dewers open to the recovery line (otherwise they might exlpode!) unless you are filling.