Shutdown tylan1 SNF 2007-09-06 13:57:43: flow issues

[seymour at snf.stanford.edu]

I went throught the MFS460 flow base and checked flows. found the H2 flow off. replaced op amps and zero pots for H2 and N2. Adjusted all zeros.  checked T/C's. Mike checked door and door seal. tube ready for test.