Dear 2800 users
JEOL-2800 is down due to vacuum problems. JEOL engineers worked hard to improve leaks. In order to fix leaks they need to open up the microscope in the week of 4/16.
IMRI Staff wrote on 4/20/18:
The vacuum issues of 2800 persist. JEOL engineers investigation/service will continue for the next week or two. Please check this blog to see the status.
IMRI Staff wrote on 4/25/18
JEOL Engineers found a cracked O-ring after a thorough search. They are going to put everything together and bring up the scope. Hopefully the scope will be operational soon. Stay tuned.
IMRI Staff wrote on 4/27/18
The scope was put together and baked, yet the vacuum still poor, unfortunately. JEOL’s effort to fix the vacuum continue for the next week.
IMRI Staff wrote on 5/1/18
The scope is still down. JEOL engineers is doing thorough investigation right now. We are not going to update this blog unless we see any major progress. Please check our blog for the status. We will not respond to individual email asking about the scope.
IMRI Staff wrote on 5/7/18
JEOL made a great progress and removed sources of leaks. It turned out that the objective aperture units were leaking. The JEOL will realign the whole microscope for the next few days. We expect that 2800 will be operational by the end of this week. One thing that we need to mention is that objective apertures will be temporarily unavailable on 2800. We will send out email as soon as the scope is available for users.
IMRI Staff wrote on 5/10/18
JEOL 2800 is almost ready. JEOL completed re-aligning JEOL 2800. They have a bit of cleaning up to do in the morning. The scope will be available for users by the afternoon, say 1pm. Thanks all for your patience.
2800 still has vacuum issues and need to be serviced for the next week.
After hunting leaks, JEOL decided to open up the microscope next week to fix the leaks. 2800 will not be operational at least till the end of 4/19/18.
JEOL engineers put everything together after opening the column, yet the vacuum issue persisted. They are going to hunt for leaks. More work is needed.
Three JEOL engineers are working on this microscope right now to bring this up. Hopefully, the scope will be up by the end of this week. We will keep you posted in the blog.
2800 is still down. A JEOL engineer has been working on the instrument. He still needs to vent the column and install a cold finger as soon as he receives the parts. We hope that the scope will be up by the end of week of April 9th. Please follow the update.