[RASMB] Broken XLA Mono

[John Philo]

John,
 
I have heard that the long-pass filter can come detached from the arm, and I
suspect this is what has happened. I believe the filter is just epoxied in
place, and can come loose due to aging rather than anything a user did. My
understanding is that some of the senior service technicians are capable of
doing field repairs on the monochromator, so I would try to make that happen
(beg, grovel, bribe,...)
 
Good luck,
 
John

  _____  

From: rasmb-bounces at rasmb.bbri.org [mailto:rasmb-bounces at rasmb.bbri.org] On
Behalf Of John Gunther
Sent: Tuesday, May 20, 2008 4:13 PM
To: rasmb at rasmb.bbri.org
Subject: [RASMB] Broken XLA Mono


Dear AUC Techies 
   I picked up the Monochromator out of it's box and I heard a glass like
tinkling inside near the order filter. The order filter only moves a small
amount and won't go either way to it's normal stop. It's apparent to me that
something is broken. No one in the lab knows how this happened. The last
logged user got good results. It now will not pass any energy.
    The PI called Beckman and they offered to replace it for an exchange
price of $16,000.00. 
    Does anyone have experience repairing/disassembling and reassembling one
of these? Any hints, tips, or suggestions? 
 
John Gunther
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