Helium Level and Field Drift

 Spectrometer AC200-31 AC200-33 WM250 AM/AV300   AV400    DRX500    AV600  

 Installation year

1990 1988
1979-2007
1984 2012 1997 2007

 Helium level
  (figure)

He
He

No He meter

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He
He
He

 Field drift
  (figure)

He
He

No SCSM

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He
He
He

 X,Y,Z-Shims drift
  (figure)

He
He

No SCSM

He
He
He
He

 Log files
  (text)

He
He

No log file

He
He
He
He
Helium refill date: Tue 8 August 2017   [9% He AC200-3396 litersQuench:12 August 2017 ]
[-1134% He AV3000 liters Quench:2017 ]
[28% He AM30030 liters Quench:19 September 2017 ]
[37% He AC200-3132 liters Quench:10 October 2017 ]

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