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Old 20th March 2008, 22:01   #5 (permalink)
sailor
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Current Rebreather/s:
Inspiration Vision
Other CCR
Dolphin

Other Rebreather/s:
Other CCR
Dolphin
 
Join Date: Jul 2006
Location: UAE
Posts: 73
sailor is an unknown quantity at this point
Re: Drager CCR vs. Other Rebreathers

Hi, i`m diving a mCCR Dolphin converted with TECME parts.
I`m unable to compare with kiss-units as i didnīt dive any kiss sofar.
Beside the basic disadvantages of mCCR in general (PO2 and deco depends on manual O2 addition) im quite happy with the unit.
I found the trim and WOB quite nice.
Check Tauchen - Cave, Nitrox, Rebreather Ausbildung, Tec Ausrüstung, Reisen for the parts. The site is in German and English.
There`s another site, Startpagina for the Hydrogom O2 addition valve.
Iīm using the original 2nd generation Draeger diaphragm 1st stage for the O2 addition with an increased fixed IP of 19 bar.
This is due to the sonic constant flow jet providing 0,8 Ltr. of O2 per minute inside the Hydrogom valve.
That is mathematically good for 90 mtrs. / 300 ft and thatīs where i went with the unit already without any issue.
I started with the tube-style triple cell O2-monitor from Tecme but switched over to the Shearwater Pursuit computer integrated with triple Po2 cell monitoring.
The pursuit is currently only good for mCCR and not SCR but integrates deco calculation.
Another advantage of this conversion is that you can easily convert the Dolphin back to SCR within minutes when required.
I have to say that in the meantime thereīs another CCR in my possesion but i still like the Dolphin.
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