Hi all,
I was recently nitrox certified. I understand the NDL/MOD implications for individual dives, but am a little confused on continued oxygen exposure over multiple dives.
I realize oxygen is not the same as nitrogen accumulation, but I'm trying to debate this guideline:
SDI states that you should not exceed 2.5hrs of the MOD limit for EAN dives in any 24hr period.
Now, of course, plenty of people do liveaboards or multi-dive days where 5 dives in a day may accumulate up to 5+ hrs of dive time. Not all of this time is at the MOD, of course though.
Do most people mostly just ignore this guideline given that they stay within a MOD using the 1.4 guidelines? Or do you look at accumulated oxygen time somehow on your dive computers?
CNS feels generally pretty low risk here to me because I'm guessing most dives will only be at MOD 50-75% of the time, but on 5 dive days at 30-40m it feels closer to me.
I was recently nitrox certified. I understand the NDL/MOD implications for individual dives, but am a little confused on continued oxygen exposure over multiple dives.
I realize oxygen is not the same as nitrogen accumulation, but I'm trying to debate this guideline:
SDI states that you should not exceed 2.5hrs of the MOD limit for EAN dives in any 24hr period.
Now, of course, plenty of people do liveaboards or multi-dive days where 5 dives in a day may accumulate up to 5+ hrs of dive time. Not all of this time is at the MOD, of course though.
Do most people mostly just ignore this guideline given that they stay within a MOD using the 1.4 guidelines? Or do you look at accumulated oxygen time somehow on your dive computers?
CNS feels generally pretty low risk here to me because I'm guessing most dives will only be at MOD 50-75% of the time, but on 5 dive days at 30-40m it feels closer to me.