UW CHEMISTRY NMR
Announcments & Equipment Logs
AV700 Log Book
Welcome to the Chemistry NMR Online Log Book – your One Stop portal to communicate about the spectrometer to the Facility Staff in a timely manner.
Please record your comments and relevant observations about AV700 instrument by submitting an entry using the “Post Log Entry” box found below.
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“VT gas flow (380) is too weak for reliable operation”
VTU state: Gas error, regulation state: off, gas flow is 158 lph, target gas flow is 400 lph
T-Gas-Flow (570) is too weak for reliable operation
Probe gas, weak supply, gas flow is around 219 lph
Temperature is reading “No probe”
VT-Gas-Flow is missing – supply is probably out of order
Window freezes during atma and the screen gets stuck on the wobb screen, then the acquisition data is lost. This has happened a few times in the past as well
“ej” works fine.
After using “ij”, the instrument makes a semi-loud noise, and then a low gas flow error pops up on topspin.
Multiple of my J-Yong tubes have fitted loosely in one of the ceramic spinners. The spinner’s O-ring looks damaged.
I am periodically getting the following error after using the command “lock Tol”:
“No Status Change after ‘LOCK on’. => aborted!”
My sample is a homogeneous solution in toluene-d8.