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@tursiops The newer manual uses the same tables as the old one, it just drops the "exceptional exposure" tables. I went back and manually calculated my exposures for the most dive intensive 24 hour period including the dive that my Oceanic alarm indicated I was at an unsafe level. I realized...

Yes. I definitely exceeded safe P02 limits, as per the Oceanic's ultraconservative algorithm that does not account for 02 half-life especially during the 12 hours between dives during sleep. I think we covered this earlier? I don't either. I see the maximum daily 02 limit for exceptional...

If the daily limit is P02 1.3 is 210 minutes and yet for a good chunk of those minutes I'm at 1.03 then sure, I'm accumulating 02 but not at a rate that exceeds the recommended limits. In other words 233 minutes (my total dive times sans safety stops) of repetitive diving at 1.03 is safe...

My questions were answered, thank you very much. I don't have any further need to post until and unless further posts, primarily those directed towards me and my diving style, or contribute to the topical content of this thread, merit a response. My credentials and certifications are none of...

Again, I rounded UP. To a P02 1.3 even though I clearly was below that level for much of my diving. At P02 1.2, according to the DAN article, a diver has up to 300 minutes per day maximum exposure, and I dived a total of 251 during the most active diving/24 hour period of the trip. For much, or...

Hmm. I didn't get that impression from those more technical posts to which I am referring. I didn't hit a P02 of 1.4 at any time during the week, and I think it's fair to say that I averaged closer to P02 of 1.0 to 1.2,. Referring to the table in the link below from DAN, gives a daily 02...

It's my understanding from some of the more comprehensive, technical posts on this thread complete with calculations that despite the Oceanic screaming at me because of it's ultraconservative algorithms that do not account for half-life metabolism of 02, I was in fact not close to the 02 limits...

Yes on the dives we did on Friday, we were provided with EAN32 but I would have preferred EAN36 as the maximum depth was about 110'.

It is illogical and irrational for me to purchase and carry and maintain a dive computer which is for the sole purpose of ensuring that when my Oceanic computer indicates a high 02 level that this other less conservative computer is remaining silent and not complaining because I'm not close...

No, you got lost somewhere around page 7. Here @Diver below 83, let me take your hand and lead you through the off topic banter in regard to determining the qualifications of a different diver who posted on this thread earlier. Think of it as a "trust me dive" for which you are clearly unqualified.

The off topic banter started with a post about ANOTHER diver who posted about a dive to 200 ft without the use of a computer. Do try to keep up?

Why can't you just analyze the tanks when you pick them up from whomever filled them?

I guess I need to spend more time here.

Please take the off topic banter to PMs, thanks

I was aware in advance of the dives that I would not exceed the MOD but it would be close on a few of the two dives. In fact I had no control over which blend I was using as the rental tanks were supplied by the Dive Ops and I didn't want to go to the trouble to rent tanks with a higher blend...

I am (and was) well aware that the P02 setting on the alternate screen was not related in any way to the MOD of the breathing gas that my computer was set for and the alarm was indicating cumulative 02 not a violation of the MOD.

SAC could be 16cf per minute. If so the dive was way too short to be narced.

No doubt.

I flipped to the P02 screen when I got the warning and it was at 1.03 and continued to drop to about .95 for the remained of the dive, which was at about 65' at that time. I don't believe I violated what would have been the MOD had I been set at P02 1.4 during any of the dives I did over the 3...

Interesting. I must admit I never really looked into the actual differences, I just assumed it would be enough to make it worth setting the P02 higher (and assuming the slight greater risk) and dive the slightly richer blend to maximize my allowed bottom time in regard to NDLs. Truth is I...