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George, You had a post about calibrating O2 sensors which said (in part): > See what it reads in millivolts in air, and > figure out the rest. - George > Your next post responding to Paul Smiths lights was as follows: > Get a 50W 2400 kelvin, highest lumens > you can find , and replace it every fifty hours. This will > set you back a solid $4.00. If you can't do this I suggest > you take up another sport where your life and your buddie's > life isn't being gambled for a few bucks. > This is the > kind of BLANTANT STROKERY that pervades the diving > community. Do it right or quit doing it. - George First a couple of comments. Obviously in monster passage bigger is better ( with regard to lights) however, it is my understanding that Paul (and, to some extent, myself) dive in tighter passages where 50 watts would be a bit of overkill. I think there is a strong case for tailoring equipment for the specific dive and no single system is better all the time. There is a saying in aviation that the difference between doctors and pilots is that doctors get sued for their mistakes; pilots get buried for theirs. The same can be said about diving. I see nothing wrong with saving a buck or two on a voltmeter O2 analyzer (or lower watt lights) but the problem arises when people without the prerequisite smarts are told enough info to get in trouble. With something as critical as Oxygen content mixed with novice divers (for example the one from Miami wanting to know "any and all" info on tech diving) the results are as predictable as they are bad. With all due respect to Mr. Darwin, pulling bodies out of caves doesn't do any of us any good. I know you and many of the others diving non-air mixes are very carefull about testing, marking and verifying their gas but I can't believe there won't be someone out there diving at the PO2 edge bragging about saving $580 while waving a bottom of the line Radio Shack voltmeter in the air. C. ============================================================================== Chris Elmore University of South Carolina chris@ot*.hs*.sc*.ed* Humanities and Social Sciences Laboratory (803)-777-7840 Columbia, S.C. 29208
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