[Dsg-mvt] [New Logentry] Re: FMT gas issues

[beng at jlab.org]

Logentry Text:
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Both C4H10 MFCs aren't behaving as they should and we don't have an identical sized spare: it was used for the RTPC MFC.

However, since Mix 2 is no longer being used, and Bob has since closed the valves, we swapped the C4H10 MFCs along with the networking information as the Mix 2 MFC has been behaving noticeably better than Mix 1 (see plots, spikes after 1200 were us trying different things [purging with Ar, putting in manual mode, trying higher flows, etc]). The swap was done ~1500.

The old Mix 1 MFC is powered and online, but not installed since Bob capped fittings that would normally go to the MFC.

There's still some issues with the swapped MFC, but it's definitely improved.

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This is a plain text email for clients that cannot display HTML.  The full logentry can be found online at https://logbooks.jlab.org/entry/3784502
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