How To Analyze Nitrox (EANx) - Nuvair O2 Quickstick Tutorial
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- Опубліковано 5 чер 2024
- Best Travel Nitrox Analyzer (Nuvair O2 Quickstick) 🧪 amzn.to/3MuCucp
Check out Nuvair 🔗 nuvair.com/
Why Dive Nitrox? ▶️ (Coming Soon!)
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Nitrox Diving, also known as Enrich Air Nitrox (EANx) Diving, is one of the most popular certifications open water divers get after completing their initial training. Nitrox allows you to have increased NDL (no decompression limits), can potentially help you feel less tired after diving, and some even claim it helps with their SAC rate as well.
Unfortunately, Nitrox Diving dangers and risks exist as well, and if you don't take the proper precautions, diving nitrox can be dangerous. Nitrox blends have max operating depths (MODs) that need to be adhered to, and the only way to calculate this is to know what percentage of oxygen is in your nitrox blend. This means analyzing your blend properly.
In this video, I use the Nuvair O2 Quickstick Oxygen Analyzer to showcase how to properly analyze a nitrox tank for scuba diving, how to check your cylinder's oxygen percentage, how to log your nitrox blend, how to mark your tank, and the risks involved with not analyzing your nitrox tank before diving.
This video is NOT sponsored, however Nuvair sent me the O2 Quickstick for free and therefore I have to disclose that. Some product links are affiliate links which means if you buy something we'll receive a small commission.
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Best Travel Nitrox Analyzer (Nuvair O2 Quickstick) 🧪 amzn.to/3MuCucp
Check out Nuvair 🔗 nuvair.com/
Why Dive Nitrox? ▶ (Coming Soon!)
I can confirm the Nuvair is a great analyzer. Very easy to use.
A couple callouts:
1) Hold the Nuvair away from the tank when first opening the valve as demonstrated in the video. The sensor is delicate and can be damaged if the valve is opened too much.
2) Make sure to adjust for altitude when needed as the reading will be inaccurate.
I definitely should’ve called out both of those, good points!!
@@CircleHScuba You did a great job. As you stated, people should only use Nitrox if certified and this is a good refresher for viewers that are.
Thank you!
It is a very good idea to have a stick. I’ve gotten by without needing one, either by asking the shop to take the reading in front of me, asking on board the boat, or in my favorite scenario, the shop makes you take the reading in front of them and sign off on it. Never found myself in a scenario where I’m expected to trust what the shop/operator says it is without verifying. Thats just bad business…and an instant negative review on the shop. I am a big fan of the quickstick. The palm analyzer is solid as well for the price.
Palm is also good! Sadly I’ve had the scenario happen with 3 operators in 2 different countries 🤦♂️
@@CircleHScubaoh yeah I could see that international. I’ve taken to reminding my dive buddies to double check their computers as well. Had a few dives where I come within 1 minute of NDL and had to flag my buddy only to find out they had the computer set at 32 or whatever
@souswes oof
I recently (last week) started diving and have my Nitrox. We did not have a Nitrox option last week in Belize, but I got this! It said it was the last one (on sale) and always a sucker for that! I think it’s a great tool and your video already made me more confident in what I learned in class and trying to retain. Thank you. Time to plan the next dive trip!
Hey Angela! I remember you saying when you just started, woohoo! Congrats on that AND nitrox certification! I hope Belize was everything you wanted!!!
Happy to hear you picked up the last analyzer too, haha. Now everyone else will have to just wait! 🤣
Always happy to help where I can. Good luck with the trip planning! I’m going to make a video on dive trip planning soon I think, and I am still thinking of hosting my own trip some day (maybe next year, likely in 2025).
Happy to hear you remember me. Now I need to get caught up on all your other content and interested to see if/what you put together for 2025. We have all our own gear, so we are definitely really prepared new divers 😂.
I bought all my own gear right after open water as well, haha. I couldn’t help it! I wanted to be in the water as much as possible!!!
I’ll keep everyone in the loop for sure on any potential trips. I haven’t actually emailed anyone on my newsletter yet, but if you sign up at CircleHScuba.com/packing-list you’ll get a free packing list I use for dive trips, and be notified of any future newsletter things to include dive trip announcements!
Excellent video, my two cents for this one is not to buy the replacement sensor at the same time as the analyzer. The shelf life of that spare sensor will be similar to the one been used in the analyzer so both will be not good at the same time. I have already seen this happening to two different persons.
Great point. Something to think about if it’s part of your save a dive kit
I mean, you will get the training on how to do this as soon as you take the specialty course. I understand that there's a degree of risk involved in not analysing your tanks before dives, but I feel that the risk is lower if you get an acknowledgment from the shop that they don't do EANx. Most dive shops in Indonesia (i.e. Bali) don't do EANx and if they do, the tanks will normally be a special one as it's quite rare for recreational divers to asks for one (normally they're in the process of doing their Open Water trainings and not EANx qualified).
But if I'm aware from the shop/ if I can spot a few EANx tanks in the shop, I will definitely test my tanks. That Nuvair though is quite huge huh ~~ DNA got a smaller one. Do check it and hope you'll make a video out of it as I'm wanting to buy another portable one. It's time for my Analox O2EII Pro to retire as it's been inhaling bad air for years. (jokes, I just want a new one).
People learn it in the course but often don’t have an analyzer and I’ve seen people just trust the operators too often.
I haven’t seen the DNA one, I may check it out though. The quick stick is pretty compact and portable in my opinion though.
Really nice videos :) as a beginner and watching you I'm already telling my instructors how to dive xD :D
Haha! Well I’m glad you’re able to help others learn too!
Industry diver who trained me with over 2k dives said quite simply: for recreational diving there is never a good reason to do decompression diving other than experiencing danger.
Not a bad perspective. Nitrox isn’t just for deco though. Extending your NDL is recreational diving, and Nitrox up to 40% is considered recreational still when properly trained
@@CircleHScuba To be honest I just spread this perspective under scooba training videos I watch, especially information about how to go deeper. thanks for the video :)
I think you should! That’s a great way to learn. I do the same thing, haha. Pick up a little from everyone and when you see big differences in opinions, that’s where you have to do more digging usually.
See you in other video comments, thanks for the chat!
Excellent! Wow the price of O2 analyzers need to come down in price. Especially, if we to need to analyze air fills (21% O2) to make sure we didn't get a Nitrox fill.
I agree they can be pricey but I also don’t necessarily wanna cheap out on something that’s life support based 😅
Helium analyzers are even more pricey! If you ever plan on doing trimix diving, you might consider forking out the extra 💰 for safety and get a combined He and O2 analyzer. In the meantime, just borrow your dive center's analyzer.
@mcmoore02 if they have one readily available and didn’t forget it in the shop when you’re on the boat already pulled from the dock.
Sounds like a rare and specific situation but I’ve had this same situation happen through 3 different operators in 2 different countries 🤦♂️
@@CircleHScuba Yeah that's bad. As certified Nitrox divers, we must analyze the tank before the dive. And that includes before the tank is on the boat because if it is the wrong mix, the situation must be corrected. Period. I have always resolved this scenario with the dive operator before I pay for a Nitrox dive and that includes making sure they can supply an analyzer and I can analyze it before it is loaded on the boat. Otherwise Air. So far it has not been an issue, but I am sure people have had awful experiences.
Thank you so much!!! I was unaware of this danger
Absolutely
great content, Thomas. SCUBA knowledge is never-ending. Every bit helps us to become safer divers. I like the idea of having my own air analyzer on hand. Thanks for the safety tips.
Anytime Layne, and thanks for your comment!
I would like to ask three Odd questions, 1- these convulsions are reversible? , explaining, giving the victim another source of air, doable for that depth, can help the victim recover? 2- If we can't recover a convulsing victim, what can we do if we are with a buddy? do an emergency ascent even risking the bends to save that person? I would in that situation? 3- Imagine this situation, my buddy has nitrox 32, and i'm one of those pig headed guys that like the good old air, the regulator of my buddy for some reason enters on a free flow, and all that good nitrox is going to waste, can I give my buddy my air? because my air combination is quite different than theirs, it might cause my buddy some harm, even on an emergency situation? thank you very much love your videos
Hey! These are awesome questions, thank you for asking them.
I’m going to preface this by saying this is hypothetical and while I’m an instructor, I’m not your current instructor, so this is general advice and tips but not instruction or medical advice, to cover myself legally 😊.
1) Can you recover from CNS Seizure?
Well, the convulsions causing the diver to spit the reg out usually means they take on water and I don’t think air from a redundant Octo will help necessarily unless they stop convulsing quickly. What I’ve read is that the best route is to do a safe controlled ascent to the surface while trying to control them as best as possible as they thrash. They also may have banged their head multiple times on the 1st stage while convulsing so there’s many dangers here. Once surfaced, opening the airway and trying to get them to breathe or delivering rescue breaths if you’re trained is the best option. The CNS hit itself is dangerous, but the issue is drowning and thrashing that may not allow you to easily surface them without them harming themselves or you, and without them sucking down so much water you’re basically trying to revive them from drowning.
2) What can we do if we are their buddy?
Well, this is something dive buddies have to decide. Put themselves at risk and risk having two injured divers or letting them go. It’s something each diver has to assess for themselves based on the situation. Regardless of if you can give them air, help raise them to the surface, etc. you need to make these considerations in putting yourself at risk.
3) Scenario you described
You can give your buddy air in that situation. Absolute worse case is their NDL was super low and they may need a deco stop. You end the dive with a failure like a free flow, and I’d have them sip from the free flowing reg if possible like you learn in open water until the tank is fully spent, though they may be panicking so that may not be doable.
I’d also switch their computer’s gas back to air if possible to see what their computer says. Otherwise go off your computer and start your ascent. As an air diver your NDL would’ve been lower than theirs, so if you were good buddies and dove close to each other on the same depth, they should’ve had more NDL than you so they would’ve been heading up before the NDL was so low it would force them into decompression. Like, your NDL would’ve been low so they would’ve gone up. That’s why we follow the most conservative computer in a dive group.
For example let’s just say you had 12 mins at the depth you were at and they had 30. Them having an issue at 10 mins means there’s 2 mins at that depth on air before deco, so you should be able to share air and start your ascent, which raises your NDL since you’re going up.
@@CircleHScuba thanks a lot for your answers, so, in the case me and my buddy go to a dive, it is always safer to have the same combination of nitrox or both air, that question about Nitrox always made me question all those variables with NDL between "simple air" and mixtures of Nitrox, hence I will read those Dive tables to heart, of course I have my Mares Puck Po, but it's always good to know the max time for each gas mixture on the actual tables, I generally dive no more than 18 meters - 59 feet so the data I have on my head is "AIR-NDL = 56 minutes" "EAN32-NDL = 95 minutes" and "EAN36-NDL= 125 minutes" I trust the computer, but control each minute with a watch. Until of course I man up and go for decompression certification which I must add, love it, thank you
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You are welcome! Thank you for the support and I hope you have a great day too
If my analyser shows 33.4 O2, shall i add 33 or 34 in my dive computer?
Good question, always round down to be conservative imo.
@@CircleHScuba thanks for the reply mate
Absolutely!
"Very good and interesting video. I think it will be helpful to many."
Thanks for the comment, I hope it’s helpful too! Haha
Do you dive nitrox often?
Great content for the $300 is worth it for the next big purchase folks get the cert to be able to get nitrox but don’t know enough to make the right choice
Exactly, it’s such a common cert too but kinda nuts that people don’t always learn this stuff, or maybe just don’t recall it well?
@@CircleHScuba I fully didn’t understand till I stated to do tech diving
Up to a point I’d say it was the same for me. Either when I became a DM or tech diving haha.
Using your logic for diving Nitrox, shouldn't ALL tanks be tested, including 21 percent air mixtures 🤔
Well honestly that’s more dependent on how tanks are filled. Air is air so the compressor won’t magically change it unless it’s using one of the various systems to boost the oxygen higher than 21%.
You should always know what gas you’re breathing though, yes
@@CircleHScuba Tanks can be mislabeled or mixed-up?