We started to have the same problem here with a new delta+XL. It's usually
with cup 2 ( 28 or 44).  I asked the service tech/engineers about this and the
buck got passed to germany.  So far finnigan has no answers for it.  I was led
to believe that this kind of thing had never happened before.  I guess for now
we are supposed to just grin and bear it.  Are there also people experiencing
the "for no apparent reason computer crashes" that I seem to be plagued by.  Or

how about the constant error messages popping up about HPFpegno.exe access
violations.  Again I was led to believe that these problems only happen
with our instrument so it would nice to know if that was indeed the case.

Later,
Tim Howe
Univ. of AK Fairbanks



Howard Sanford wrote:

> I have a Delta Plus running ISODAT NT. On occasion during a sequence, my
> middle cup, #4 (yes, it really is 4. Don't ask), will not acquire. 0 bkg, 0
> peak height, 0 ratio, flat trace. The other two cups, #3 and #5 (masses 28
> and 30, I do almost exclusively nitrogen only work) look just fine. I even
> get a 28/29 ratio trace, but no 29 signal. Next run everything is fine.
> This seems to have started when I switched to NT, but I had other more
> vexing problems with the Real32 version, so I'm inclined not to go back.
> Has anyone seen anything like this with either version? I'm going to
> defrag, cut down on the number of files in my acquisition directory and
> find a suitable sacrifice. Any other tips would be appreciated.
>
> Howard
>
> Howard Sanford
> 919-513-3039
> North Carolina State University
> Dept. of Soil Science
> Box 7619
> 3114 Williams Hall
> Raleigh, NC 27695
> http://www.soil.ncsu.edu/