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Wed, 10 Sep 1997 07:08:57 -1000 |
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>Dear Brian
>
>I may be interested in your mass spec. I am trying to set up a lab
>under considerable fiscal constraints!
>
>Can you give me a few more details so I could find out about
>shipping costs to NZ. What are its dimensions, weight?
>Also, does this offer include the pumping system?
>
>regards
>
Russell:
I'll ask our Fiscal folks about surplus instruments if you find
that you are truely interested. The mechanical pumps are dead but since
there has been no new gas added, the getter pumps are holding. There are
only collectors for masses 44, 45 and 46 and there are three electrometers.
I took the signal from the electrometers and fed them into a V/F converter
- counting system that I copied from an instrument in John Hayes's old lab
in Bloomington. I have schematics and acquisition programs in basic. I do
not know what the original specifications were but the instrument is a
monster, as you probably know. Dimensions of the flight tube support are 1
m x 2 m x 1.5 m (h); the magnet must weigh 200 kg and there is one 2 m (h)
electrical stand. I'd say the whole system roughly weighs 400 kg which
caould be expensive to ship from Hawaii. I will need the support framework
for the glass inlet system which needs to be rebuilt anyway.
There used to be a 3-60 in the lab as well. Many of the electrical
parts are still in cabinets. They can also be made available as spares.
If you are unfamiliar with these types of mass spectrometers, I
think that you could spend a lot of time getting something like this
running. If the NZ system is anything like here, you would probably be
better off spending the time writing grant proposals for the equipment. I
don't know your research, but well equipped Finnigan mass spectrometers now
cost less than $200K US; in 1993 I bought a differentially pumped Delta S
with a dual inlet as a second instrument for $125K. Again, I don't know
your needs or your situation well but please let me know if you are really
interested in the 6-60.
Brian
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