Author Archives: chemweb

i400 is now back up. Continue reading →

Someone broke a sample tube inside the i400 magnet. The probe and its accessory need to be uninstalled and cleaned. The spectrometer will be temporarily unavailable for 4-5 hours. Continue reading →

i400 is back running. The problem was actually a bad video card which has just been replaced. Continue reading →

i400 is down duo to some software issues. Continue reading →

The i500 C13 problem has been fixed. Both H1 and C13 work very well. Enjoy high sensitivity of the 500. Continue reading →

i500 currenly has a hardware problem (likely a damaged broadband preamplifier) which significantly reduces C13 sensitivity. Troubleshooting and repair will be taken at early next week. At this time, users are recommended to use i400 or vxr400 for C13 spectrum measurements. … Continue reading →

The default printer for the nmrsun5 computer has been changed to vxrlj (the printer next to the vxr400), which is closer than sun2lj to this computer. Continue reading →

The FTS cooling system is back working. Please keep in mind that the cooler unit of this system should be turned on ONLY when you run low temperature experiments and must be turned off after you finish your low temperature work. DO … Continue reading →

The FTS cooling system on the i400 stops working and has been powered off. As a result, low temperature function on the i400 is not available until the system gets fixed. High temperature function still works. Continue reading →