UW CHEMISTRY NMR
Announcments & Equipment Logs
May, 2013
ALERT ! AV500 DOWN…
Hardware malfunction is being investigated. The instrument will be down possibly until tomorrow. Further updates will be posted here.
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AV800 : UPDATE – SYSTEM STILL UNSTABLE
Thorough investigations thus far indicate two possible points of instability in the system that leads to sporadic and unpredictable failure of the spectrometer. Since a troubleshoot of this nature entails long periods of test runs and observations, the system is not ready to collect useful data yet. We will keep users posted as to any […]
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ALERT AV301 : PROBE ISSUE
The automated tuning mechanism has developed a problem on the 1H channel. Until this probe is fixed, an interim double resonance probe i.e. 1H, 13C will be installed in AV301.
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DRX499 UPDATE : INSTRUMENT READY FOR USE
Users can block times as usual. The usual warnings and reminders highlighted last time when an incorrect sample insertion occurred, apply now also. Thank you for your cooperation.
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DRX499 – INSTRUMENT DOWN DUE TO USER ERROR
A user has managed (again) to drop a sample tube without a spinner into the magnet bore. Currently we don’t know the extent of damage this has caused but we are investigating. An update will be posted once the instrument is revived back to usability.
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AV700 UPDATE : SYSTEM IS REVIVED
The workaround is functional and the spectrometer is working again. The probe change to solids will be completed today, as planned.
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AV700 ALERT : SYSTEM DOWN DUE TO PNEUMATICS PROBLEM
The proposed probe change is postponed to tomorrow since the console has a damaged filter system. A workaround is being tried and if the console can be revived immediately, then we will be on track with the original schedule. An update will be posted in due course.
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AV700 : PROBE CHANGE ALERT
The solutions HCN probe will give way to the solids MAS probe come Monday, the 6th of May ’13. The spectrometer will serve the solids work needs for about four weeks from this date.
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AV500 – POSSIBLE VT ISSUE
Users have mentioned that they are not able to bring the VT set point below approx. 285 K. We are looking into this and an update with more information and planned remedy will be posted here. Stay tuned…
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AV500 UPDATE : Screen Freeze Resolved
Users can drag and drop the datasets as before, if they prefer that method. The spectrum screen will not freeze with this operation. Nevertheless, the Right Click has a context menu that has more items that are useful, other than opening the dataset.
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