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Rod, Thanks for your note. Actually I did read all the posts in the archive about the CCR systems. I just didn't think it was applicable to me as the cost was way out of my league. When the fixed mass flow systems came along, I though that was about my speed, but was worried about the risks (Bret's assurances about physiology notwithstanding). While I am sure that the CCR is not fool-proof (they'll always build a dumber fool), I was impressed by the time-to-fail data that BioMarine has on the components. As an example, the electronics are dodderingly old-fashioned. The power supply has to be a dual voltage battery to operate the soldered circuit boards. BUT - it works, reliably. No doubt if the concept takes off and they sell a lot, someone will put in a 2.5v computer that will cook your breakfast while you deco (actually that's not a very happy metaphor). I am aware that there are other manufacturers in the field. I am not really interested in being a crash-test dummy, so real-life, time-to-failure data on components are an importnat selling point to me as a consumer. Peter P.S. Please note I was not accurate in my post: the CCR500 has only one solenoid - for the O2; diluent is added via a volumetrically controlled valve. On Mon, 24 Jun 1996, rfarb wrote: > Peter, you've just verfified what we have been saying all along. I own a > BioMarine CCR155 (the $15K unit) and dive it. The CCR500 is a downsized > version of the 155. $5000 for a fully closed circuit rebreather like the > CCR500 is a deal. <snip> > I should warn you that you and > the list will likely bombarded with posts about how having a more complex > unit like the CCR500 means that there are more components to worry about > failing, like the O2 sensors and the electronics. Go to the tech diver > archives and drag out all the documents relating to this- try spring > 1996.
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