Fw: Deuterium lock problem on AC-200 system, correction

From: Lawrence Byrnes <numare_at_eclipse.net>
Date: Fri, 8 Jun 2001 14:58:32 -0400

Hello again Spinlanders

Opps! What I should have written was 'lock power', not 'RG'. Sorry.

Lawrence

> Hello Spinlanders
>
> Had our system powered down for ten days. CDCl3 lock signal fine before
> power down, now NG. Since 1994, RG=35 worked fine. Now, require RG=45 to
> see same trace as before. All cooling fans appears OK. Filters clean.
> RG=35 OK for D3COD and DMSO-d6 but not for CDCl3. The lock system still
> manages to lock at RG=35 but one does not observe typical lock signal
trace
> at that setting.
>
> Has anyone had a similar experience? Is this a warning that the lock
> transmitter is about to fail?
>
> Any useful information will be collected and re-posted to the group.
>
> TIA, Kind regards,
>
> Lawrence
>
> Lawrence Byrnes,
> NMR Laboratory Manager,
> Numare Spectralab Incorporated
> 10 Summit Avenue, # 6
> Berkeley Heights, NJ, 07922
> Research Director,
> The Schoenenberg Instutute of Molecular Spectroscopy
> 75 Snyder Avenue, Berkeley Heights, NJ, 07922
> Telephone 908-665-0066
> Facsimile 908-464-4192
> E-mail numare_at_eclipse.net
> WWW http://www.eclipse.net/~numare/
>
>
>
Received on Fri Jun 08 2001 - 15:14:10 MST

This archive was generated by hypermail 2.4.0 : Sun Jun 04 2023 - 15:46:27 MST