Quote: (Originally Posted by
jmurba)
if you isolate the reg from pressure it is a kiss...
I am sure that when they say scr/ccr it means that one can add a cape to the reg to get a fixed MP and dive the rig kiss style.
No, i am sorry, but i am sure of this part of the story. The regulator have not a cap and the IP increase with the depth.
Quote:
it must be certified as a SCR and divable as a kiss with a discreet modification.
It has a certification that is not issued from a notified laboratory. You can decide by yourself what value have it.
You can check this discussion about this mater:
http://www.rebreatherworld.com/gener...=certification
(but i am sure you know it, because you started it!)
Quote:
the system you discribe can't be dived CCR, if the diver can't reduce the flow rate going down the ppo2 will sky rocket unless one tunes the flow rate to nearly nothign clos the surface to reach 1 liter minute at the botton whcih is stupid because this near the surface that we need the flow rate to be as close as possible to our methabolic consuption.
Now you know why i don't like it and why i made some test with manometer and flowmeters to convince a friend that the flow was increasing with the IP. And he is still not completely convinced, because they told him that with a variable IP first stage the flow would stand fixed due to some sort of viscosity, density, whatever technical or magical term you want to use, in the needle valve.
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you also mentionned that the flow rate could vary from 0.5 to 25lt/minute...it looks like a scr flow rate...
You can regulate it in a typical CCR flow for use with pure oxygen or you can have an higher flow for use in SCR.
Quote:
I'd like to read the certification, it must be a scr certification.
That's very easy:
http://www.rebreatherworld.com/gener...html#post93492
buonna sera[/quote]
Bonne nuit
ps if you understand italian, i can send you something worth to be read about the voyager...