UW CHEMISTRY NMR
Announcments & Equipment Logs
AV500 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 AV500 instrument by submitting an entry using the “Post Log Entry” box found below.
Subscribe to AV500 logs
269 Responses to “AV500 Log Book”
« Previous 1 … 19 20 21 22 23 … 27 Next »
Following error message show up when my last measurement start (I have multiple measurements):
“timeout while waiting for processes to start”
lock is lost during the measurement on av500
Topshim crashed after wobb. Screen is frozen and keyboard doesn’t work.
Auto-lock not working. After command “lock cdcl3,” the “sweep” light remained lit. No change in lock signal observed, and shimming impossible. 100% sure that sample itself was not the issue.
Issues with wobb, topshim, and experiment acquisition. Likely related to potential outages on Saturday night? An overnight experiment was also interrupted at unknown time.
When I typed wobb, this error message consistently appeared: “wobble signal too weak with RG=46341.0”
wobb dances the entire time trying to tune/match. makes it really difficult to get a good signal
Topshim crashed in the middle of trying to wobb for FNMR. Now screen is frozen on logbook but keyboard doesn’t work. Even if I try to manually log out with ctrl+alt+delete.
Still seeing an odd “squiggle” in the wobb curve during tune and match, as well as spurious peaks across the baseline in my spectra.
This is a sample comment. I had to change the authentication rules per UW-IT and I’m testing if this comment still works like it should.
It took a very long time for the computer to log on (about 8 minutes).