Hi Robert
these look like they come from a previous generation of sample changer.
They do not make a lot of sense with the SampleCase.
In case you want to have something int he magnet when nothing is running
you are probably better off using a empty tube with a regular spinner.
With best regards
Clemens
On 1/26/2026 1:55 PM, Robert Peterson via groups.io wrote:
>
> Hi everybody,
>
> I have an annoying problem that's becoming more and more frequent: dummy
> samples getting stuck in our SampleCase sample changers.
>
> See the attached picture. We've always had users insert dummy samples
> into the magnet after they're done running their experiments (if no one
> is waiting to get on the instrument). The dummy samples that we've been
> using for the last several years are these solid black combination
> spinner/samples. I'm pretty sure we got them from Bruker, but I can't
> find them anywhere on the Bruker website so maybe they've been
> discontinued.
>
> We've always had a problem where are these dummies samples get stuck in
> the SampleCases. It's most often during the process of ejecting the
> sample - the dummy sample gets stuck in the mechanism as it tries to
> drop it back down onto the sample holder. When that happens, someone has
> to go up on a ladder and gently push it down so that it will drop. It
> occasionally get stuck above the magnet, which is harder to deal with. A
> separate problem is that it often has trouble inserting the dummy sample
> into the magnet - the sample descends into the magnet but never reaches
> the bottom and gets detected. Then the system ejects the sample (all the
> way back out onto the sample rack) and then tries to re-insert it.
> Sometimes it goes through this cycle three or four times before it
> finally goes in and the system detects it.
>
> These types of insert/eject problems almost never happen with ordinary
> samples.
>
> The main problem (where the dummy sample gets stuck in the mechanism as
> it tries to drop it back down onto the sample holder) used to happen a
> couple times a week, but recently it's been happening several times a
> day. Has anyone else experienced this? Is there some maintenance I can
> do on the SampleCase to prevent this kind of thing? Or is this type of
> dummy sample just problematic (possibly the reason that Bruker
> discontinued them)? What type of dummy sample do people recommend using?
> Or are dummy samples not really necessary on heavily used instruments?
>
> Thanks in advance, and I'll summarize any responses.
>
> -Robert
>
--
==========================
==========================
====================
Clemens Anklin Ph.D. Vice President
Bruker BioSpin NMR Applications & Training
15 Fortune Drive NEW Phone: 978-313-5NMR(5667)
Billerica MA 01821 bluesky: _at_canklin.bsky.social
web: http://www.bruker.com
e-mail: clemens.anklin_at_bruker.com
==========================
==========================
====================
-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#3152): https://urldefense.com/v3/__https://ammrl.groups=
.io/g/main/message/3152__;!!PvDODwlR4mBZyAb0!X7zz3DMTpaXkos36PPzT8CF30L2W7l=
O5La96dYz6y040JM6pU7qdseDW0uvc9zlpaMTIt-IpoRpjASNkQEUAGAlF2mzu$
Mute This Topic: https://urldefense.com/v3/__https://groups.io/mt/117474748=
/7559972__;!!PvDODwlR4mBZyAb0!X7zz3DMTpaXkos36PPzT8CF30L2W7lO5La96dYz6y040J=
M6pU7qdseDW0uvc9zlpaMTIt-IpoRpjASNkQEUAGAsBZ9Q4$
Group Owner: main+owner_at_ammrl.groups.io
-=-=-=-=-=-=-=-=-=-=-=-
Received on Mon Jan 26 2026 - 12:50:57 MST