Hi Everybody:
I am having a problem with our eject air on our Varian VNMRS-500 NMR
that is new to me. We began having this problem after we moved into
a new building, but I don't know if that is relevant or not. I am
leaving on maternity leave one week from today. So, this is a crisis.
The eject air does not always come on. This has been an intermittent
problem that rebooting the computer seemed to fix, but now it will
not. It does not seem to be a air flow problem, but a communication
problem. If you click the eject button, the eject air will come on,
but in the time that it takes to walk to the magnet and climb the
ladder, it goes off. Then, it will not respond to eject or insert for
several minutes. If you climb the ladder first and try to use the
switch at the top of the barrel, it takes a very long time before the
air comes on. If you toggle the switch, then when the eject air comes
on, it will eject and insert as many times as the switch was toggled.
I have reset the master board in the console, I have turned on/off
the pneumatic router, I have reseated all of the communication cables.
Can you please copy <mailto:ravigr_at_ou.edu>ravigr_at_ou.edu on the emails
that you send me about this issue. This is Dr. Ravi Garimella and he
will be doing my job during my leave.
Thanks so much.
Susan L. Nimmo, Ph.D.
NMR Facility Manager
Department of Chemistry and Biochemistry
University of Oklahoma
101 Stephenson Parkway
Norman, Oklahoma 73019
office: 405-325-0677
cell: 405-627-7044
lab: 405-325-2843
Received on Wed Mar 16 2011 - 06:03:07 MST