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Stable Isotope Geochemistry

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Subject:
From:
Gerard Olack <[log in to unmask]>
Reply To:
Stable Isotope Geochemistry <[log in to unmask]>
Date:
Fri, 22 Jul 2005 13:54:00 -0400
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hI Anthony--

Yeah, you don't get the bellow adjustment option when using continuous
flow devices--that would be the easiest way out. But you should be able
to us a short ISL script with bascically just the _SetBellowVolt
command, and run it in the extra script section of the method. Ok, so
you'll probably need to incorporate the DualInlet_lib.isl and make use
of the open_right_side and other routines. This is one of those things
on my list for "next month" so I don't have the bugs worked out.

good luck

gerry

Anthony L. Michaud wrote:

> I want to use the dual inlet for reference gas injection when using
> the gasbench and also the TC/EA on a MAT 253. I have been able to set
> up the configurator for a gasbench+dual inlet and have added the
> “reference” scripts for opening and closing the dual inlet changeover
> valves. This works great. However, the beam intensity of the reference
> gases drops quite a bit after 12 hours. I would like to be able to
> have the beam intensity from the dual inlet remain constant over 12
> hours or more. For this I need to get Isodat to adjust the bellows
> pressure before each run and I am clueless as to how to set this up.
> Is there anybody out there who is using the dual inlet for reference
> gas injection and has figured out how get the instrument to maintain a
> constant pressure in the bellows throughout the day? I know you’re out
> there!
>
> Thanks for any help!
>
> Anthony
>
> ------------------------------------------------------
>
> Anthony L. Michaud
>
> Physical Sciences F-686
>
> Arizona State University
>
> Tempe, AZ 85287-1404
>
> Tel: 480-727-8033
>
> Fax: 480-965-8102
>
> ***Windsurf Everywhere***
>
> ------------------------------------------------------
>

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