[RASMB] AUC Upgrade

[John Philo]

Wendel,

I certainly agree that when you pay that much for an upgrade it should work
correctly, and I suggest you raise this issue with Margie Rogers,
Centrifugation Business Manager at Beckman (mrogers at beckman.com). Beckman
had not detected this problem in their own testing because they don't ever
actually run samples in the machine, and one empty hole looks the same as
another!

In the meantime, ask your service engineer to install an older version of
the firmware and GUI. I had the same problems when my XL-I was installed in
January, but have not seen them since they switched to GUI version 5.6 and
firmware version 3.21 (dated July 18 '05).

John

-----Original Message-----
From: rasmb-bounces at rasmb.bbri.org [mailto:rasmb-bounces at rasmb.bbri.org] On
Behalf Of wendel.wohlleben at basf.com
Sent: Tuesday, November 14, 2006 5:53 AM
To: rasmb at server1.bbri.org
Subject: WG: [RASMB] AUC Upgrade


Hallo Christine,

we had both of our XL-I upgraded in february 2006, exactly in the way you
describe it: PC, CCD, software:

The dark noise of the new CCD and new frame-grabber is somewhat better, but
the pixel size and number is identical, leading to no significant
enhancement in fringe shift accuracy. The new software is the old software,
with only 1 new feature: Data from cell x is 'sometimes' saved as data from
cell (x-1). 'Sometimes' means a few % of all scans are missorted. The
problem is aleatoric, independent of waiting time between scans and less
dramatic on one of the machines. We can eliminate scans from the analysis,
depending on bad residuals in fits, but what if you run two very similar
samples - how do you identify a missorted scan? What I find incredible is
that this bug was known with Beckman before our placement of order, but they
told us only after the upgrade !!! Since 9 months they are unable to fix it.

Now, why did I spend the money for virtually no progress? Simply because my
IT-department no longer tolerates Win95-PCs in the network. If you can still
escape ;-)  don't upgrade, wait for Tom Laue's next-generation-AUC.


Beste Grüße, Wendel


Dr. Wendel Wohlleben
Polymer Physics


Phone: +49 621 60-95339, E-Mail: wendel.wohlleben at basf.com Postal Address:
BASF Aktiengesellschaft, GKP/O - G201, D-67056 Ludwigshafen, Germany


BASF - The Chemical Company


BASF Aktiengesellschaft, Registered Office: 67056 Ludwigshafen, Germany
Companies' Register: Amtsgericht Ludwigshafen, HRB 3000 Board of Executive
Directors: Juergen Hambrecht, Chairman; Eggert Voscherau, Vice Chairman;
Kurt W. Bock, Martin Brudermueller, John Feldmann, Andreas Kreimeyer, Klaus
Peter Loebbe, Stefan Marcinowski, Peter Oakley Chairman of the Supervisory
Board: Juergen Strube




                                                                           
             "Christine.Wandre                                             
             y at epfl.ch"                                                    
             <Christine.Wandre                                          An 
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                                        [RASMB] AUC Upgrade                
                                                                           
             12.11.2006 18:43                                              
                                                                           
                                                                           
                                                                           
                                                                           




Dear all,

Is there anybody who has already upgraded an OPTIMA XL-I??

We purchased our equipment in 1997. It is still
very well functioning and was not too much used.
Now I intend replacing the PC, software, digital
camera, software,...- the complete set offered by
Beckman.

Is there anything special that I should consider?

Thank you,
Christine
--
PD Dr.habil. Christine Wandrey, MER
Ecole Polytechnique Fédérale de Lausanne (EPFL)
Laboratoire de Médecine Régénérative et de Pharmacobiologie (LMRP)
http://people.epfl.ch/christine.wandrey

tél: (+41) (21) 693  96 61 in office AAB 042 or
(+41) (21) 693 36 72 in office CH J2 494
fax: (+41) (21) 693 96 85

postal address
EPFL-SV-IBI-LMRP
AAB 042, Station 15
CH-1015 Lausanne

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