me not being a v clever Chap i would tend to agree with washing of some pcb boards , but even i can see a big Difference between, what,s done in a Manufacturing process, and washing your ccr head and hand sets ,in a its not so much the washing , but the fooking DRYING, :doh:
Mate, it might just be me but perhaps you can enlighten me as to what the problem is with CE marked units going through a dishwasher as I seriously can't work out why it would be a problem if you don't exceed the limits they have to be designed to meet. As they have to;
- handle being washed in 40C water
- handle cleaner at twice the recommended concentration
- handle being stored at 70C
I am sure plenty of dishwashers have settings that don't exceed whats required for CE'd rebreathers so where is the issue?
EN14143 said:
5.14.1 Storage
Trouble free operation shall be ensured after storage at temperatures ranging from - 30 °C to + 70 °C.
Testing shall be done in accordance with 6.13.2.
5.15 Cleaning and disinfecting
All parts that on the recommendation of the manufacturer have to be cleaned and/or disinfected shall be easy
to clean, insensitive to the cleaning agents and disinfectants recommended by the manufacturer and remain
functional after having been cleaned and/or disinfected.
Testing shall be done in accordance with 6.2 and 6.14.
6.13.2 Testing after storage at - 30 °C and + 70 °C
Before performing the following test the apparatus shall, where required, be calibrated and shall be breathed
from for a period of 5 minutes.
On completion of the above procedure (both - 30 °C and + 70 °C) for a period not less than 3 h allow the
temperature of the apparatus to return to standard laboratory conditions.
Switch on the apparatus and calibrate, if required.
Test at a pressure of 1,0 bar and a ventilation rate of 40 l min-1 with an oxygen consumption of 1,78 l min-1 for
the duration of the apparatus as specified in the manufacturers information, during which time the
performance shall remain within the limits specified.
6.14 Cleaning and disinfection
Use the disinfectant recommended by the manufacturer. The concentrations and immersion times indicated in
the instructions for use are to be doubled. Perform the test 30 times. If no other temperatures are indicated,
the temperature of the disinfectant solution shall be 40 °C.
I'd think it would be very easy to provide some proof of such CE certification of the O2 Apoc with the N@90 pod fitted, wouldn't it?
I could be wrong but I understand the CE issue was identifying elecs marked to EN14143 to enable use with a rebreather. AFAIK just EN13319 doesn't cut it as that only covers depthtimer use and not PPO2 monitoring.
I note my BIO350 is marked IEC EN 61508 Sil2, EN14143:2003, EN13319 and PPE89/686/EEC which I understand is a first for a dive computer.
However, this is not the "Incursion" Brad has been implying is available in statements like (from post 112 in this thread): Indeed, this is simply more evidence that the electronics don't work at this point in time.
Simon, You sure about that?
AFAIK the CMR Incursion uses the same elecs as the BMCL one, it just suits a different tactical mission profile....
the overarching and non-negotiable importance of correct CE testing for all rebreathers whilst endorsing the inevitable modification of theirs into a non-CE'd state by everyone who buys one.
Simon, are you seriously promoting that incorrect CE testing should be the norm?
I still am waiting to find out how adding the same elecs as fitted to other CE marked rebreathers to an Apoc actually effects anything?
This situation is portent of what might come if Alex ever does fix his electronics and release them. He would claim that this represents some kind of victory against the skeptics and others like me who have proposed potential problems with the way he was trying to do things (like measuring end tidal CO2). But the fact is that the delay which now spans to almost 6 years after he claimed everything was working and ready for release (not to mention the documented changes in his methodology) has already proven that the sceptics were correct when the debates took place. Producing the electronics now would only demonstrate that given enough time you can fix most things.
Simon, Ever considered that the data you have access too gives insufficient evidence to make any conclusion?
Yes - the FFM has a mouthpiece inside it, no noticeable difference in WOB down as far as 53 metres which is the deepest I've switched to BOV. Given that the BOV is basically a Poseidon second stage in a different plastic case then you would expect it to breath really well.
K, I presume your doing the WOB testing on manned dives rather than unmanned? At what point in J/L can you on a manned dive detect a change in WOB and by how much?
But Brad, can I remind you that a manufacturer sells products... not the certification.
Simon, Surely a buyer of a CE marked product buys the product and if its CE marked should be able to expect the complete certification?
On that note, an easy question for you to answer Simon as I understand you have a couple of CE marked units to hand. How does either one "minimise the ingress of water during normal use and in the event of a diver falling unconscious or having a convulsion"?
I asked Randy the same simple direct question but don't have appear to have got a response and MatthewA seems to have failed to mention how the Hollis explorer prevents one going unconscious if diving it.
iCCR Apoc: got CE certified years ago, which was allegedly the final barrier to market release but we have still seen nothing. There is only one plausible explanation: it doesn't work well enough for market release.
Bingo. BUT, have you considered an alternative hypothesis for "why" that might be the case
Forget all the old excuses (stock takes, expired parts, slow suppliers etc etc). These would have worked for short delays, but no one believes them any more.... and even if these really were the true reasons all these years down the track it just exposes an incompetent and unreliable manufacturer who you would not want to deal with anyway.
Perhaps it shall come to pass that the iCCRs delay points to the opposite hypothesis and that despite the commercial and PR cost to OSEL withholding it the reason is due to OSEL being more of a competent and reliable manufacturer who you do really want to deal with than you have considered but for reasons not seen elsewhere in recreational rebreathers.... just a thought!
I think I mentioned that I could not find the umbilical units advertised anywhere. You know advertising Brad... its what people do when they have something to sell. You claimed in the post that you were able source them! Can you provide a name and contact number that is not you. I mean, seriously, if they are for sale, why would that be difficult? Why would anyone go through you?
Simon, Perhaps they would opt to go through me if they were insufficiently informed to not be able to contact the source directly!
Incursion: prototype seen on a stand at a dive show 6 years ago. Not sighted since. No reports through my military diving connections of them having been purchased by anyone (in fact, no one has heard of them).
Really? As it only takes a second to find proof in the public domain that your wrong on at least 2 points out of 3 I guess your sources are a little suspect!
Finally, you seek to reassure us of the legitimacy of the units by reference to 61508 certification. I don't feel reassured because I don't believe that these standards adequately address evaluation of all the innovations in these rebreathers. Can you prove me wrong by, for example, finding and citing the explicit 61508 instructions (or the explicit instructions in any of the other standards these things have been certified to) for verifying accuracy of end tidal CO2 measurements in a rebreather loop? There obviously must be such instructions because you have cited the certifications many times in the past to allay my concerns about the accuracy of this particular measurement.
Simon, I am just a simple layman but I presume if you were honestly interested rather than simply biased you could perhaps address your concerns and questions directly to SIRA who audited the Apoc to 61508! I know I for one would be interested in the answer as I understand you wouldn't be the first to question the Apocs cert process due to not knowing how they achieved it.
Lastly given you dive in Australia is your Apox fitted with an M26 O2 valve rather than DIN as required by CE?
An interesting question. Currently as setup I have DIN as used on every other CE marked rebreather outside Europe. That said I would prefer to be using M26 for all my oxygen cylinders as it gives an additional level of safety on filling and using the cylinders.
Regards
Brad