IANTD EAN vs PADI EAN courses

[Remy B.]

You obvioulsly have not taken a nitrox course if you set your PPO2 @1.5 without really knowing why. And you are right, IANTD will not take you for an advanced Nitrox with your level of inexperience

I believe I will reach NDL before I expose my self to 1.5 PPO, since the Idea of using EAN is to extend bottom time without exciding you NDL, setting the PPO to 1.5 PPO allows to go deeper without activating the Alarm on my DC on depth limitations using EAN 32, or am I wrong ???

The reason I'm formulating questions is in order to ask as many good or not so good question when I take the EAN course, since there is no bad questions it is worse to not ask a question and be at trouble and wishing to had ask that question in the class room, it is dumber to not make a question than making a dumb question, right ?

 

[tomfcrist]

Remy,

You are confused about a lot of things.

Yes using EAN will extend Your NDL.

Setting the ppO2 alarm at 1.5 does a couple of things...
First- it let's you dive a given mix up to a depth where ppO2 reaches 1.5....
Second-it shows that you have no idea WHY we don't dive a ppO2 that high during the working portion of a dive.

 

[hroark2112]

If your biggest concern is setting off the alarm on your dive computer, your priorities are in the wrong place.

Thinking you will hit your NDL before you hit a PO2 of 1.5 sounds like you don't understand how to calculate your PO2 to begin with.

 

[RJP]

I believe I will reach NDL before I expose my self to 1.5 PPO,

It's quite possible to hit 1.5ppo well before reaching NDL. In fact, you can do it within the first 60sec of your dive if you want. Simply fill your tank with 32% (hard to find anything else on Curacao) hop off the boat and drop down to 36m. You'll hit 1.5 with about 16min of NDL left.

 

[C Dub]

You really should take the class before you start in on technical questions, especially PPO2 settings. You're in way over your head.

I believe I will reach NDL before I expose my self to 1.5 PPO, since the Idea of using EAN is to extend bottom time without exciding you NDL, setting the PPO to 1.5 PPO allows to go deeper without activating the Alarm on my DC on depth limitations using EAN 32, or am I wrong ???

The reason I'm formulating questions is in order to ask as many good or not so good question when I take the EAN course, since there is no bad questions it is worse to not ask a question and be at trouble and wishing to had ask that question in the class room, it is dumber to not make a question than making a dumb question, right ?

 

[RJP]

The reason I'm formulating questions is in order to ask as many good or not so good question when I take the EAN course, since there is no bad questions it is worse to not ask a question and be at trouble and wishing to had ask that question in the class room, it is dumber to not make a question than making a dumb question, right ?

I think you really like to over think a great many things about diving. Your interest and diligence is admirable, however you often seem to confuse yourself and spend a lot of time on matters where you don't even know what you don't know yet. I suggest you don't worry about formulating questions on courses you haven't even registered for yet. Sign up for the class, review the required material, and then formulate cogent questions.

On Day 1 Your instructor will expect that you might not understand the material... there's no reason to prove it to him.

:d

 

[Omisson]

I'm about to do a Nitrox course with PADI, unfortunately it appears there is no Advance EAN teaching here on the Island, I have set both of my DC to 1.5 PPO a notch above the coservative 1.4 PPO, looking at IANTD courses the EAN course is set to allow divers to reach 39m depth, but it doesn't mention the amount of exposure of PPO, in their Advance EAN course they mention 1.5 PPO and 42m Depth and state that you need to have taken the EAN and Deep Specialty with them it doesn't say "equivalent".

My question is that looking at both of my DC, with the 1.4 PPO you can't reach 39m with 32% EAN, with 1.5 PPO my DC's allows me 35.5m Depth, is IANTD using other non conventional mixes ( 32 and 36% ) to reach 39m depth with as well 1.5 PPO exposure for there EAN course ???

IANTD, will not allow me to take "Advance EAN" with them if I don't take thier EAN and Deep speciality courses or will they accept Deep Speciality and EAN with other Agencies ( since there is no mention of "Equivalent" courses ) ???

Any one that had taken the IANTD and PADI as well ???, it seems that they are very different since their depth's limitations of each agency course programs are not the same, any hints on this ???

Diving with a 1.5 PpO2 is a accident waiting to happen. Doing Tec dives without understanding them is dangerous.

IANTD and TDI offer an advanced Nitrox course PADI TEC REC a Tec 40/45 puts you in the same place.

But you need to understand the issues of oxygen toxicity before you experience it ....

 

[Remy B.]

It's quite possible to hit 1.5ppo well before reaching NDL. In fact, you can do it within the first 60sec of your dive if you want. Simply fill your tank with 32% (hard to find anything else on Curacao) hop off the boat and drop down to 36m. You'll hit 1.5 with about 16min of NDL left.

I understand that, what I mean is, you can hit 1.5 or 1.6, but it will take some time for it to affect you, of course you don't want to spend a lot of time exposed, for what I read you can hit 1.5 or 1.6 in normal conditions, but it will take some time to get affected by it, the alarm is to not expose your self and start ascending inmidiatly, correct ???

 

[scoobydrew]

I understand that, what I mean is, you can hit 1.5 or 1.6, but it will take some time for it to affect you, of course you don't want to spend a lot of time exposed, for what I read you can hit 1.5 or 1.6 in normal conditions, but it will take some time to get affected by it, the alarm is to not expose your self and start ascending inmidiatly, correct ???

No, not really a CNS hit can come one quite suddenly.

Limits used by recreational agencies will have conservatism added to them but your desire seems to be to push past the limits as agreed upon by the majority of the diving community. Why? Your profile says you have 0-24 dives why do you feel you need to challenge what has been proved as an acceptable level? Think simple, 1.4 is the limit.

You should not need an alarm as you should be aware of what you are doing but just in case you do lose a grasp on what is happening most computers will give an alarm to help you snap out.

 

[hroark2112]

The purpose of learning about Nitrox and PO2 calculations is to determine the best mix for the dive, based on not exceeding a PO2 of 1.4. If you do your calculations properly and know the MOD of the mix you're diving, your PO2 alarm is moot.