AMMRL Community,
I am seeking help with designing a battery of real-world tests for our
new Varian cold probe before we accept it and begin our warranty
period.
We have received our crates of equipment, and the unit will be
installed in a few weeks. To officially "accept" the unit, I am sure
the installation engineer will run a number of standard tests (S/N,
lineshape, etc.) to assess its performance. We would like to run
additional tests to ensure the reliability of the device under normal
facility conditions, i.e., sub-perfect operation by non-NMR-intensive
graduate students. For example, we have heard that the tuning rods may
break if they are tuned to one extreme or the other and the probe warms
up; we would like to test this hazard while we have the engineer there
and before we accept the probe. While we are not aiming to destroy the
probe, we want to push its limits under foreseeable normal
circumstances.
I would appreciate it if you were to tell me of problems you have
encountered with Varian cold probes (or Bruker cryoprobes, if the
problem is sufficiently general) that we could test during our
installation process.
Thank you.
- Josh
Josh Kurutz, Ph.D.
Technical Director, BSD/BMB NMR Facility
University of Chicago
Cummings room 201C, Mailbox #2
920 E. 58th St.
Chicago, IL 60637
Office: (773) 834-9805
Spectrometer room: (773) 702-4052
Cell (773) 315-5732
Fax: (208) 978-2599
nmr.bsd.uchicago.edu
Received on Wed Dec 08 2004 - 19:22:26 MST