SCR/mCCR

Flup · 5th April 2008, 17:38

Finaly put together my new rig. It has become an SCR combined with a mCCR, and it looks great

(I Think, whehehehe) Dry testing was good so far. Hoping to test it 'wet' in the next day's, keep it posted

Wish me luck, grinnnnnn..........

gerstl_ossi · 5th April 2008, 18:05

Wish you best luck for the test. Post some pics and let us know how the unit dives.

cheers ossi

Smudgegs · 5th April 2008, 19:01

Yeah show us the pictures! Looks like I'm not getting to dive tomorrow ao I need cheering up

Flup · 5th April 2008, 21:07

Hi Guy's,

If all goes right i'll be testing tommorrow, keep you posted.

Just to tell a bit. 'Turned over' a dolphin, kept the SCR system intact, only feedig trough a stage botlle now, at least, when mCCR does not work. 2 pieces of 3 ltr bottles, one with oxy and one with dill for the mccr set up, bail out on dill and on stage (geuss that will do the trick

)

Oxy gauge and Air ZO2 for the monitoring of the oxy level.

Dill manual feeding and oxy with a constant flow of about 0.6 ltr min with extra option of manual feeding.

All this thnx to Martin of Tecme, provided some parts, whehehehe

Very courious of the behaving of the unit, like i said, keep you all posted, pic's will follow if i have the time.

Clear water for all
Flup

p.s. Do not try this at home, rebreathers can and will kill with out any warning

Baron Gautsch · 6th April 2008, 08:19

Best wishes to u!

I'm truly interested in your REB because I've in mind of doing something like that on my Azimuth

libero · 6th April 2008, 11:43

Quote: (Originally Posted by Baron Gautsch)

Best wishes to u!

I'm truly interested in your REB because I've in mind of doing something like that on my Azimuth

Ciao Armando, se accetti un piccolo contributo, non spingerti oltre ai flussi combinati che già conosci come ottenere, sono una "certezza". Se proprio vuoi aumentare l'efficenza in deco, puoi aggiungere una bombola di o2 collegata al bypass del nx usando il flusso che avevi impostato per il nx e aprendo l'o2 Solo in deco a 6 mt facendo i lavaggi ti ritrovi un aro e, decomprimi molto velocemente. Usando nx 50 con questo sistema e gli oppotuni cambi di flussi combinati, riesci ad equagliare in deco un eccr (provato da me, credo tu sappia anche come dove e con chi).Usa la macchina che hai, per quello che può dare. Se vuoi di + ci sono altre macchine, moolto mooolto migliori.Saluti

gibbogeo · 6th April 2008, 12:07

Quote: (Originally Posted by Flup)

Oxy gauge and Air ZO2 for the monitoring of the oxy level.

Been there, done that. The Oxy2 with AirZO2 don't work well in CCR use.

They will measure the oxygen content in the bags when it switch on, then every time the FO2 (not the PPO2) drops (as when you start to descend and you add diluent) it assume you are overbreathing and give you more deco to do.

At the end of a normal dive, you will accumulate a huge amount fo deco time that you know is not necessary. But if you don't respect it, the AirZO2 will hang ("SOS" mode) for one day and you will not use it the day after.

So you will have to follow the infinite deco it prescribe or you will have to hang it under the boat to let the AirZO2 finish his deco or you have to use two AirZO2 every other day...

jacquesm · 8th April 2008, 11:13

Quote: (Originally Posted by gibbogeo)

They will measure the oxygen content in the bags when it switch on, then every time the FO2 (not the PPO2) drops (as when you start to descend and you add diluent) it assume you are overbreathing and give you more deco to do.

I have been told ever worse : in case the FO2 raises above initial value, this would be considered a AirZ system failure and the display went off, not even giving mix instant value.
But I had no chance to test it myself.

***caveseeker7*** · 8th April 2008, 12:10

Uwtec's letter on the subject of Aladin and CCR

Flup · 14th April 2008, 15:16

Well, thanks all for the replies so far. I've been underwater and yes, I survived

.

First dive my Air Z didn't work (damned, took the wrong one from the shell

, wasn't paired to the Oxy2), second dive it did work, altough bit troubling I thought. (maybe the explanation lies in what is said here before

)

Did both dives shallow, first one max of 10 metres, second one max of 15 metres (bit of risc management I could say

) unit performed fine. mCCR mode, switched to SCR, switched back, did bail out on OC and so on and so on. I had a good feeling with the performance of the unit.

In the beginning a little problems with the gasamount in the lungs, no ADV in mCCR mode, so had to do some 'emergency' fills with the dill

, seems you to get used to an ADV pretty quick

.

When I have the time I'll post some pic's of the rig, first want to dive it some more, and hopefully survive again

5th April 2008, 17:38	#1 (permalink)
Flup Custom Title Allowed! Current Rebreather/s: Megalodon Dolphin Home Build Other Rebreather/s: Inspiration Vision Ouroboros Dolphin Home Build Join Date: Apr 2006 Location: Netherlands Posts: 132	SCR/mCCR Finaly put together my new rig. It has become an SCR combined with a mCCR, and it looks great (I Think, whehehehe) Dry testing was good so far. Hoping to test it 'wet' in the next day's, keep it posted Wish me luck, grinnnnnn.......... __________________ They say i'm all mixed up, maybe that's why i like mixed gas diving !!!!
(Offline)

5th April 2008, 18:05	#2 (permalink)
gerstl_ossi Custom Title Allowed! Current Rebreather/s: RB80 / Clone Home Build Other Rebreather/s: Not Bought Yet RB80 / Clone Home Build Join Date: Dec 2006 Location: Italy Posts: 280	Re: SCR/mCCR Wish you best luck for the test. Post some pics and let us know how the unit dives. cheers ossi
(Offline)

5th April 2008, 19:01	#3 (permalink)
Smudgegs Divetart Current Rebreather/s: Classic Kiss Dolphin Other Rebreather/s: Dolphin Join Date: Mar 2007 Location: Fife, Scotland Posts: 125	Re: SCR/mCCR Yeah show us the pictures! Looks like I'm not getting to dive tomorrow ao I need cheering up
(Offline)

5th April 2008, 21:07	#4 (permalink)
Flup Custom Title Allowed! Current Rebreather/s: Megalodon Dolphin Home Build Other Rebreather/s: Inspiration Vision Ouroboros Dolphin Home Build Join Date: Apr 2006 Location: Netherlands Posts: 132	Re: SCR/mCCR Hi Guy's, If all goes right i'll be testing tommorrow, keep you posted. Just to tell a bit. 'Turned over' a dolphin, kept the SCR system intact, only feedig trough a stage botlle now, at least, when mCCR does not work. 2 pieces of 3 ltr bottles, one with oxy and one with dill for the mccr set up, bail out on dill and on stage (geuss that will do the trick ) Oxy gauge and Air ZO2 for the monitoring of the oxy level. Dill manual feeding and oxy with a constant flow of about 0.6 ltr min with extra option of manual feeding. All this thnx to Martin of Tecme, provided some parts, whehehehe Very courious of the behaving of the unit, like i said, keep you all posted, pic's will follow if i have the time. Clear water for all Flup p.s. Do not try this at home, rebreathers can and will kill with out any warning __________________ They say i'm all mixed up, maybe that's why i like mixed gas diving !!!!
(Offline)

6th April 2008, 08:19	#5 (permalink)
Baron Gautsch New Member Current Rebreather/s: Azimuth Other Rebreather/s: Azimuth Join Date: Feb 2007 Location: Rome Italy Posts: 12	Re: SCR/mCCR Best wishes to u! I'm truly interested in your REB because I've in mind of doing something like that on my Azimuth
(Offline)

6th April 2008, 11:43	#6 (permalink)
libero New Member Current Rebreather/s: Megalodon Other Rebreather/s: Megalodon Join Date: Jul 2006 Location: ITALY Posts: 6	Re: SCR/mCCR Quote: (Originally Posted by Baron Gautsch) Best wishes to u! I'm truly interested in your REB because I've in mind of doing something like that on my Azimuth Ciao Armando, se accetti un piccolo contributo, non spingerti oltre ai flussi combinati che già conosci come ottenere, sono una "certezza". Se proprio vuoi aumentare l'efficenza in deco, puoi aggiungere una bombola di o2 collegata al bypass del nx usando il flusso che avevi impostato per il nx e aprendo l'o2 Solo in deco a 6 mt facendo i lavaggi ti ritrovi un aro e, decomprimi molto velocemente. Usando nx 50 con questo sistema e gli oppotuni cambi di flussi combinati, riesci ad equagliare in deco un eccr (provato da me, credo tu sappia anche come dove e con chi).Usa la macchina che hai, per quello che può dare. Se vuoi di + ci sono altre macchine, moolto mooolto migliori.Saluti
(Offline)

6th April 2008, 12:07	#7 (permalink)
gibbogeo kiss addict Current Rebreather/s: Classic Kiss Dolphin Home Build Other Rebreather/s: Dolphin Home Build Join Date: Sep 2005 Location: italy Posts: 308	Re: SCR/mCCR Quote: (Originally Posted by Flup) Oxy gauge and Air ZO2 for the monitoring of the oxy level. Been there, done that. The Oxy2 with AirZO2 don't work well in CCR use. They will measure the oxygen content in the bags when it switch on, then every time the FO2 (not the PPO2) drops (as when you start to descend and you add diluent) it assume you are overbreathing and give you more deco to do. At the end of a normal dive, you will accumulate a huge amount fo deco time that you know is not necessary. But if you don't respect it, the AirZO2 will hang ("SOS" mode) for one day and you will not use it the day after. So you will have to follow the infinite deco it prescribe or you will have to hang it under the boat to let the AirZO2 finish his deco or you have to use two AirZO2 every other day... Last edited by gibbogeo : 6th April 2008 at 12:10.
(Offline)

8th April 2008, 11:13	#8 (permalink)
jacquesm New Member Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: Jan 2006 Location: Meudon (near Paris) Posts: 12	Re: SCR/mCCR Quote: (Originally Posted by gibbogeo) They will measure the oxygen content in the bags when it switch on, then every time the FO2 (not the PPO2) drops (as when you start to descend and you add diluent) it assume you are overbreathing and give you more deco to do. I have been told ever worse : in case the FO2 raises above initial value, this would be considered a AirZ system failure and the display went off, not even giving mix instant value. But I had no chance to test it myself. __________________ See you soon under surface Jacques
(Offline)

8th April 2008, 12:10	#9 (permalink)
*caveseeker7* Who loves ya, baby Current Rebreather/s: Sport Kiss Other Rebreather/s: Prism Topaz Join Date: Jan 2005 Location: Too far from Neverland Posts: 5,325	Re: SCR/mCCR Uwtec's letter on the subject of Aladin and CCR __________________ Cheers Stefan "It is still a good day if you are on the green side of the grass! Su amigo Roberto!" Sponsor Lou in Race For Life!
(Offline)

14th April 2008, 15:16	#10 (permalink)
Flup Custom Title Allowed! Current Rebreather/s: Megalodon Dolphin Home Build Other Rebreather/s: Inspiration Vision Ouroboros Dolphin Home Build Join Date: Apr 2006 Location: Netherlands Posts: 132	Re: SCR/mCCR Well, thanks all for the replies so far. I've been underwater and yes, I survived . First dive my Air Z didn't work (damned, took the wrong one from the shell , wasn't paired to the Oxy2), second dive it did work, altough bit troubling I thought. (maybe the explanation lies in what is said here before ) Did both dives shallow, first one max of 10 metres, second one max of 15 metres (bit of risc management I could say ) unit performed fine. mCCR mode, switched to SCR, switched back, did bail out on OC and so on and so on. I had a good feeling with the performance of the unit. In the beginning a little problems with the gasamount in the lungs, no ADV in mCCR mode, so had to do some 'emergency' fills with the dill , seems you to get used to an ADV pretty quick . When I have the time I'll post some pic's of the rig, first want to dive it some more, and hopefully survive again __________________ They say i'm all mixed up, maybe that's why i like mixed gas diving !!!!
(Offline)

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode