UW CHEMISTRY NMR
Announcments & Equipment Logs
Spectrometer
UPDATE ! AV700 – SYSTEM BACK IN OPERATION – NEW BASE FREQUENCY ! PLEASE READ
The Lock system is back to normal. PLEASE NOTE THE FOLLOWING IMPORTANT CHANGE ! New System Base Frequency : 699.962448 MHz. This reconfiguration is needed to compensate for the long term loss of energy by the Supercon Magnet. How does this affect you ? If you simply open your existing data set and start copying […]
Posted in Software, Spectrometer, Usage | No Comments »
ALERT ! 700 USERS – SYSTEM DOWN
The Lock system has developed an issue and we are still in the diagnostics stage. Until this is fixed, the instrument is not available for use. I will post any useful updates as it becomes available. Thank you for your understanding. NMR Facility Manager 5/16/2018
Posted in Hardware, Spectrometer | No Comments »
UPDATE ! AV700 – BACK UP VT SYSTEM IS OPERATIONAL – WITH A LIMITED RANGE
The backup chiller is provided in the interim, with which you can reach about -10 C on the lower side and the high T limit remains as before. Further updates will be provided once we make progress on the original chiller problem. NMR Facility Manager 5/11/2018
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ALERT ! AV700 – SYSTEM DOWN DUE TO VT ISSUES
We will try to either revive or provide an alternative solution to the VT problem and release the instrument for use soon. Please wait further updates. NMR Facility Manager 5/11/2018
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UPDATE ! AV700 USERS – INSTRUMENT IS OPERATIONAL WITH SOLUTIONS NMR PROBEHEAD
The current probehead is TXI-1H {13C,15} with Z-gradient. The nominal VT range is -60C to +70C without any special care or considerations. The probehead is capable of reaching to a larger VT limits but there will be an accompanying reduction in the continuous NMR observation time to protect the magnet and shim electronics. Please contact […]
Posted in Spectrometer, Usage | No Comments »
UPDATE ! AV700 USERBASE : INSTRUMENT WILL MOVE TO SOLUTIONS BEFORE WEEKEND
Currently, we are testing the VT and chiller system. As per current estimates, by Friday we should be able to release the instrument with a solutions probe in place. Please wait for further update on this. NMR Facility Manager 5/1/2018
Posted in Hardware, Spectrometer, Uncategorized | No Comments »
UPDATE ! DRX499 – VT SYSTEM REVIVED
The surrogate chiller unit is in place and the sample VT control is back in operation. Please post a message in the log book if you notice anything unusual. With the setup, users should be able to reach about +5C comfortably. We will check the functionality in the coming day or two to confirm the […]
Posted in Hardware, Spectrometer | No Comments »