[dsg-hallb_mvt] [Revised Logentry] BMT argon flow fraction alarm

[Brian Eng]

Looks like maybe Mix2 C4H10 MFC is having some problems, but there is also lots of times when the MVT itself isn't requesting any flow.

Seems to be most of the issues happen around when the mixing tank is nearing the end of the cycle where it's trying to build pressure in the tank, I'm going to change the high pressure point from 10 to 9 to see if that helps any.

[cid:C110C8D1-53E0-45BD-9CFC-17479237E23E at jlab.org]

On Feb 21, 2023, at 12:21 PM, Yuri Gotra <gotra at jlab.org<mailto:gotra at jlab.org>> wrote:

MVT MFC failed 4 times today.

Bob, Denny, Brian, could you please check for spares, this is becoming critical. Thank you

On 2/21/23 9:41 AM, Brian Eng wrote:
As for any MFC spares, I can double-check, but I think all the smaller ones used for the MVT were handed over to Hall B once the system was installed.

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