3 Replies Latest reply on Mar 8, 2018 8:18 AM by m4esti

    Can I turn off the filament of a Varian 979 leak detector?

    isend

      I want to use a Varian 979 as a pumping station to pump-clean a cold head. The cold head was filled with pure He4, so the leak rate would overload. Can I turn off the filament of the mass spectrometer to prevent overloading?