Though it never happened in that sequence, I did encounter “RawCheck- no signal at all”
In the rare cases that I’ve seen it, something went wrong with the gradient control.
First check if there are any errors in the console – that might provide a handle as to the issue.
Then do HA and call up the BSMS to see if any errors or weird stuff there.
Sometimes just (locking and) running a few scans in a grad COSY fixes it – if you try that, does the lock signal do as expected?
Otherwise, the fix that I’ve used is to shut down (not restart) computer, console,
then start up computer and when logged in, startup console and components in the recommended sequence.
If you have a GREAT gradient amp, turn on in the proper sequence or it may not work.
(I have systems with & without) (GREAT is a separate rack device; not just a board on the BSMS rack)
Alternatively, quit Topspin and power cycle the BSMS.
Always wait about a minute before turning the BSMS on again. Power off/on can pop something.
Then I do an edprobe (just open and close to make it remember what probe is in there)
and edte and set values to restore the sample temperature control parameters.
Then I check with a grad COSY and it’s usually okay.
Cheers
George
-------- -------- --------
George Sukenick, Ph.D.
Associate Lab Member/Head
NMR Analytical Core Facility
Memorial Sloan Kettering Cancer Center
From: main_at_ammrl.groups.io <main_at_ammrl.groups.io> on behalf of Tom Dickinso=
n via groups.io <tdickinson.inc=comcast.net_at_groups.io>
Date: Thursday, August 15, 2024 at 10:43 AM
To: AMMRL <main_at_ammrl.groups.io>
Subject: [EXTERNAL] [AMMRL] Top Shim error while attempting 1D calibration
Hi All,
I have a question about Bruker's Topshim application.
On a 300 MHz AVIII console, I can successfully 3D shim using the sucrose sample
as the manual describes. The display on the lock changes as expected during the
calibrations and it successfully completes the task.
Once 3D has completed, I've attempted to calibrate with the 1D option for ICON
automation etc.
Attempting to run with a deuterated doped d2o or the sucrose sample as well,
I get the following error;
RawCheck- no signal at all
I've tried 1D H1 and H2 calibrations and I get the same error.
Has anyone encountered this error and what was required to fix it?
Thank you,
Tom
==========================
Please note that this e-mail and any files transmitted from
Memorial Sloan Kettering Cancer Center may be privileged, confidential,
and protected from disclosure under applicable law. If the reader of
this message is not the intended recipient, or an employee or agent
responsible for delivering this message to the intended recipient,
you are hereby notified that any reading, dissemination, distribution,
copying, or other use of this communication or any of its attachments
is strictly prohibited. If you have received this communication in
error, please notify the sender immediately by replying to this message
and deleting this message, any attachments, and all copies and backups
from your computer.
Disclaimer ID:MSKCC
-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#1509): https://urldefense.com/v3/__https://ammrl.groups=
.io/g/main/message/1509__;!!PvDODwlR4mBZyAb0!RcvsYLoG2kKw8dg4JYySjKuhhunBA_=
LA9eiHbhoLkxmpDqs631P3cZ8dGId3_5AOMDU3EpJRYHVNwuGV$
Mute This Topic: https://urldefense.com/v3/__https://groups.io/mt/107914803=
/7559972__;!!PvDODwlR4mBZyAb0!RcvsYLoG2kKw8dg4JYySjKuhhunBA_LA9eiHbhoLkxmpD=
qs631P3cZ8dGId3_5AOMDU3EpJRYDOCH9RD$
Group Owner: main+owner_at_ammrl.groups.io
-=-=-=-=-=-=-=-=-=-=-=-
Received on Thu Aug 15 2024 - 09:36:22 MST