From: Larry Arnold (lwarma@med.unc.edu)
Date: Tue Dec 26 1995 - 11:02:56 EST
In regards to the discussion of FACScan side scatter problems, we have not seen the problem which has been described by "y'all" on our FACScan which was been in operation for 3+ years. We do not have any special electrical supply connections and it seems unlikely that this is the problem in so many different sites. However, it would always be a good idea to provide some sort of electrical surge/loss protection for the computer. We have installed an UPS(uninterupptable power supply) from APC. We do not use the B-D computer for data acquisition but instead use the Cytomation system. The Cytomation system takes off the signals prior to the FACScan ADCs so it is using very little of the FACScan circuitry. I doubt that the problem is air bubbles. Usually when we think we have air bubbles the signals in all channels degrades. It sound like B-D service needs to get involved to solve this problem. Larry Arnold UNC Flow Cytometry Facility Chapel Hill
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