[Esr-users] [Revised Logentry] Follow-up Re: Follow-up Re: Follow-up Re: Hall B cryo investigation and changes to allow operation of Hall B magnets

kashy at jlab.org kashy at jlab.org
Thu Apr 11 13:50:03 EDT 2024


Logentry Text:
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We completed the control parameter switch on the Buffer Dewar Supply valve PID loops EV8210 and EV8201A.
Now the primary loop is controlling on the temperature sensor TD8522SR at 7.0K and seems to be doing  this well. 
The minimum valve position loop is controlling on the dewar level LL8210 with the original setpoint of 58%. Of course it is quite happy as the dewar is overfilled.

I'll monitor it over night and may make some slight gain and or sample time changes if I think that they are needed.



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