From: greif1nospamhere@rochester.rr.com   
      
   Got a new to me Cary 5, with an old WINUV ver 2 PC software. I had   
   tremendous noise on it, reseating most connections made it get a lot   
   better. But, I wonder what kind of performance I should be expecting.   
      
   For a scan which has a 100% baseline ref, scanned in dual beam mode,   
   from 175 to 3300nm, what kind of deviations should I see from 100% T?   
      
      
   I see noise around +/- 1 or 2 percent in the 175 to 1500nm range, but   
   huge amounts of noise (increasing with wavelength) from 1500 to 3300nm.   
   Is this normal  in the IR range?   
      
   My baseline scan has some very noticeable jumps at some crossover   
   points- should it? I suspect I could make some adjustments to improve   
   this; where can I get a service manual?   
      
   If I let it run all the time to keep it more stable (and manually turn   
   the lamps off), will my sensor (pmt or IR) life be used up, or do they   
   last a really long time?   
      
   Thanks!   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)