Hello all
please take a look at:
http://www.kjemi.uio.no/nmr/DRX500.html
and
http://www.kjemi.uio.no/nmr/heater_plates.html
Bruker supplies two versions of protecting "plates" to be placed at top
and bottom of magnets. One is for low temp. exps. - plates that allows us
to circulate hot water - so the O rings doesnt shrink with a loss of
vacuum and a quench as a result. Then they also supply another set of
plates where dry air is blown in at the
bottom of the magnet and the air is let out at the top. That air can be
used to remove both excess heat and prevent the freeze down of the
shims. We have built the two options together (our mechanics shop is
quite clever). WE bought both types of plates from Bruker and the shop
merged the two differnt versions of the
plates into a combined type. Read more and look at the picture on the web
pages.
cheers
FR
ligy wrote:
> Dear all,
>
> Varian machines have a cooling system to protect the room temperature shim
> unit, which is very useful for a long vt experiment. I dont notice such a
> device on our Bruker av500. Is there a similiar cooling system on Brukers
> for vt experiments? And what is your solution in practice?
>
> Thank you in advance!
>
> Guangyu
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Guangyu Li
> Manager, Associate Professor
> NMR Facility
> Shanghai Institute of Organic Chemistry
> Chinese Academy of Sciences
> 354 Fenglin Lu
> Shanghai 200032 China
> Telephone: 86-21-54925012
> Fax: 86-21-54925039
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> __________________________________________________________________________
>
> To subscribe/unsubscribe: Please send a note to
>
> bruker-users-request (at) purcell(dot)cchem(dot)berkeley(dot)edu
>
> For subscriptions, please include a list of Bruker instruments you are
> using, see http://www.cchem.berkeley.edu/nmr/BUM.txt
> E-mail archives are at http://calmarc3.cchem.berkeley.edu/archives/bum.html
> ___________________________________________________________________________
>
This archive was generated by hypermail 2b29 : Tue Dec 23 2008 - 07:12:18 PST