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I took the liberty of forewarding the thread regarding reported problems with the Cochran computers to a representative of Orca. Since I own a Phoenix, I posed the question to Orca "Under what circumstances will the Phoenix go into gauge mode?". The complete text of their response follows. Forwarded message: > From orca@ge*.ge*.co* Mon Jul 18 08:41 MDT 1994 > From: orca@ge*.ge*.co* > Message-Id: <199407180248.AA057289722@re*.ge*.co*> > Date: Mon, 18 Jul 94 01:47:00 UTC > To: murphy@sl*.un*.co* > Subject: And on the battle goes ... > X-Genie-Id: 3828041 > X-Genie-From: ORCA > > Thanks for the Cochran info. Our philosophy is quite simple, we never go > into gauge mode. There are only three conditions where our computers will > complain about diver behaviour; ascent rate violations, overrange > conditions, and ignoring a ceiling. In all three cases, we will tell the > diver about it, but continue to provide data. It is our expectation that > the diver will use the data in an extra conservative fashion to get out of a > pickle. The concept of gauge mode, not giving data, is totally the reverse. > The dive computers job is to provide data. The diver's job is to use the > data intelligently to make decisions. > > If Cochran, or anyone else, utilizes gauge mode shutdowns, they should stand > by their convictions enough to enumerate the violations which will lock up > their computer. This reminds me of the Suunto SME-ML, which stated that > "excessive decompression requirements" would cause a shutdown. This turned > out to be about 25 minutes of decompression time, which would not be > considered "excessive" by some members of the technical diving community. > Such limits should be stated clearly. > > I have already sent e-mail to the guy sponsoring the FAQ, with my address, > and have already received my first touches. <<some personal stuff snipped out>> :~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~: :Patrick Murphy : murphy@un*.sl*.un*.co* : :Unisys, Government Systems Division :"Ah, this is obviously some strange : :McLean, VA : usage of the word _safe_ that I wasnt: :(703) 847-2545 : previously aware of." : : Opinions expressed are mine alone : Arthur Dent, THHGTTG : ~~~~~~~~~~~~~~~~~~~The score: Opinions-3 A**holes-1~~~~~~~~~~~~~~~~~~~~~~~~~
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