Rebreather fatality list, what’s happened to it?

[RedSix]

Well fortunately the rEvo RMS system has been extensively tested and found to be very effective, but WTF would I know I only have 800hrs on my rEvo.

How often has the RMS been broken during these 800hrs? Do you need the RMS to decide when the sorb has to be changed?

 

[Alex Ouroboros]

How often has the RMS been broken during these 800hrs? Do you need the RMS to decide when the sorb has to be changed?

In fairness the rms is not an excuse to not change lime after the manufacturer stipulated hours, it’s purely to give the user an indication of if it’s being overworked and has potential for breakthrough,
I do know of a couple of rEvo users that have seen it decrease quickly whilst working and then increase in time left once they start decompressing and taking things easier.
But I stick to my guns with what I said before,,, I seem to remember issues with the sentinel and red bare with regard Co2 sensor issues, I’d rather have no information than false…

 

[Wibble]

Well fortunately the rEvo RMS system has been extensively tested and found to be very effective, but WTF would I know I only have 800hrs on my rEvo.

I have RMS on my Revo. It's useful information but... Aside from the one complete RMS sensor failure, I find that it's not so reliable when on a scooter in cold water as it sometimes reads zero scrubber time left. I stop, check myself for hypercapnia and nothing. After a while the RMS shows 3h or more left on the scrubber.

This might be a fault on one of the scrubber sensors as it's a bit inconclusive -- never does this to order.

I interpret the RMS as being a rough guide as to how much has been consumed and that it's unlikely to go from 3+h down to 0 instantaneously.

How often has the RMS been broken during these 800hrs? Do you need the RMS to decide when the sorb has to be changed?

I use the RMS conservatively. It's additional info.

I most certainly wouldn't decide on cycling scrubbers based on the RMS alone.


Have 330hrs on the Revo.

 

[rjack321]

Well fortunately the rEvo RMS system has been extensively tested and found to be very effective, but WTF would I know I only have 800hrs on my rEvo.

If you actually read my post you'll see I was talking about galvanic oxygen cells (which are functionally temperature compensated batteries) not the RMS system which is definitely not a voltage-current producing battery at all.

 

[Tassi Devil Diver]

In fairness the rms is not an excuse to not change lime after the manufacturer stipulated hours,

As I was instructed during my MOD 1 I follow the procedures to change sorb following the rMs, ie if don't have enough scrubber time for the next dive based on the rMs I change the scrubber for that dive. I get well above the manufacturer stipulated hours from a canister using the rMs, typically and extra hour out of a canister, when I head to Bali next week I will get close to double that time,

How often has the RMS been broken during these 800hrs? Do you need the RMS to decide when the sorb has to be changed?

I had issues with rMs in the early days with 13 probes replaced under warranty in the first 3 years I had my unit, in the past 5 years the system has been rock solid. I don't need the rMs to decide when sorb has to be changed, but is a terrific tool to extend the time and get the most out of a canister.

 

[crewiscool]

I am writing this as a note to anyone else out there who could get sucked into trying to use the because of an unnatural love of spreadsheets. Given what others have said, the fact that their findings are statistically are at odds with DAN reporting, and a fatality on the list where I have communicated directly with two of the people involved, the information on this list is likely mostly fabricated. The only thing I would use it for is as a convenient list of names or incidents from which I could research more carefully from more reputable sources.

I can tell you for the incident I know about, the cause is not even close to the truth.

 

[Alex Ouroboros]

Of course, and the author is known to use everything to try and pedal his own wares,
But as you say for a basic synopsis before following up other lines it’s worth using,
I personally know of two (probably not the one you know about) deaths that are definitely incorrect.

 

[Mod63]

I can tell you for the incident I know about, the cause is not even close to the truth.

Like the incident on OC that they put on the list as a CCR fatality.

 

[Wibble]

Determining the causeS of any incident is extremely difficult and time consuming. In the case of rebreather incidents the cause may never be known. Any results may need to be updated when new information comes to the fore.

We all know that at any incident with a crowd of people, you will interview them all and get very different responses. It's part of the way the human brain assimilates information. In the case of CCR analysis, you may know the gases, etc., but you won't know what the diver was thinking.

That list appeared to have been compiled for an ulterior motive and not necessarily to the benefit of the community.

 

[justinthedeeps]

Is there any other factual record that is more neutrally maintained by a respected/beneficial organization?
I hope so, even if it remains confidential for reasons of privacy and sensitivity.

Equipment details, gas analysis, detailed computer divelog data

Perhaps we will we never see it. Just hope the lessons trickle down in design, agency QC, and training standards