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    User name D. Lhuillier

    Log entry time 14:11:06 on July25,2004

    Entry number 129642

    keyword=Nitrogen level in hall A

    Beam was back 12:45.
    We started take data but the Nitrogen level in the left septum was still stuck at zero. All the other magnets have recovered their nominal LN2 levels.
    From CLOG entry 1226494 the defective valve outside hall A which caused the Nitrogen level to drop over night has been fixed.
    So we went to controlled access and checked the hall A valve. Heidi gave instructions on phone to open and close manually the LN2 valve. Unfortunately this didn't change the read back nitrogen level.
    Heidi is on her way to the Lab to check the mechanical motion of the valve.