UW CHEMISTRY NMR
Announcments & Equipment Logs
GG500 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 DRX499 instrument by submitting an entry using the “Post Log Entry” box found below.
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edc command to change file names ALSO not working.
sref command is not working, axis is way off.
The DRX499 is operational again. Please report any observations to the contrary.
499 problem found, working on fix. Will be down for a bit, will post when ready for normal use.
Received same error messages as below when attempting to wobb
cannot run any samples, get the following errors when typing “rga”:
“Process Table: Timeout occurred when starting child processes: Interrupted system call”
“Error is copmem: cannot send command to coprocessor (timeout: flag=1), check for bad rcu/tcu or crashed startd on ccu”
“Error in childprint: cannot send message to parent (timeout: flag=69). check for bad hardware or crashed startd on ccu”
“stop_coproc: not all children have terminated!”
It appears that the heater for low VT is compromised. We will test run the unit to confirm and fix the cause.
VT failed on me this afternoon. Had the probe cooled and stable at -20 oC for half an hour or so. Then I tried to cool it down to -30 oC and it got down to maybe -28 oC before the temp started to increase uncontrollably to RT. At this point the temp control unit was reading “OPEn lnP”. Tried to turn it off/on again and this error went away, but didn’t affect the temperature control. When I disconnected the lN2 arm from the probe there was still flow, but it was weak, so the transfer arm might have gotten clogged. Also I think the big blue dewar is full of water/ice..
The instrument is having issues logging in like it has in the past. I was unable to log in and had to cancel my NMR time.
Couldn’t log onto instrument. Received error message at 9:10 am.