Piscean
Registered
DivingDoc,
Please forgive me for being so blunt, but on a board like this it is the responsibility of each user to read it! You can't just keep asking the same questions even though they have already been answered in this thread.
For example, TexasMike told you that in Nitrox diving nitrogen still limits your time under water and yet in your last post you write
As for the computer thing, that is personal taste. I told you that the alternate display will display the nitrogen loading bar graph when you are diving nitrox if you press the time button, so on the vyper (which you told us in your first post that you have - so infact, you could read the manual and find it out yourself - there are only 3 pages on displays while nitrox diving) you also have all three indicators, central nervous system oxygen toxicity (=OLF), consumed bottom time indicator bar graph (=CBT) and the ascent rate. In my long post I explained the relationship between the CBT bar graph and the no-decompression time number (which is always displayed in both air and nitrox modes) so now it is up to you to decide what is important to you. You have all of the information in our answers, you just have to read them!
If I am way off base in my tone - someone please let me know so I can vent in more appropriate ways in the future.
Piscean.
P.S. If you really want to choose a computer why don't you post a question on the computers board. "I do diving type blah, blah, I want to do nitrox and air (not on the same dive). Which features are important on a computer for this type of diving?"
Please forgive me for being so blunt, but on a board like this it is the responsibility of each user to read it! You can't just keep asking the same questions even though they have already been answered in this thread.
For example, TexasMike told you that in Nitrox diving nitrogen still limits your time under water and yet in your last post you write
Also I explained the rationale behind the two measures of oxygen toxicity, cumulative oxygen exposure in the OLF bar graph and max ppO2 exposure in terms of a maximum operating depth and how you know if you are approaching the limits. Yet you asked again about that.So in Ntrox diving -- you only need to look at the OLF bar graph -- Nitrogen loading isn't important??
In fact, the answer to this question was in the text you quoted immediately under it. I will attribute that to your not understanding "cumulative central nervous system oxygen exposure" because you have not yet done your Nitrox course (though I feel sure it must have been mentioned at Med School if nitrogen loading was). Finally, I told you that the O2 exposure when calculated from tables is done the same way as nitrogen loading, i.e. by assuming the max depth for the whole dive. That is not time independent, it is the O2 exposure per unit time at max depth times the length of time of the whole dive.Also -- I would like to see where I'm at in terms of moving up to Oxtox before I get an alarm that tells me that I've reached it!
As for the computer thing, that is personal taste. I told you that the alternate display will display the nitrogen loading bar graph when you are diving nitrox if you press the time button, so on the vyper (which you told us in your first post that you have - so infact, you could read the manual and find it out yourself - there are only 3 pages on displays while nitrox diving) you also have all three indicators, central nervous system oxygen toxicity (=OLF), consumed bottom time indicator bar graph (=CBT) and the ascent rate. In my long post I explained the relationship between the CBT bar graph and the no-decompression time number (which is always displayed in both air and nitrox modes) so now it is up to you to decide what is important to you. You have all of the information in our answers, you just have to read them!
If I am way off base in my tone - someone please let me know so I can vent in more appropriate ways in the future.
Piscean.
P.S. If you really want to choose a computer why don't you post a question on the computers board. "I do diving type blah, blah, I want to do nitrox and air (not on the same dive). Which features are important on a computer for this type of diving?"