3 Cell Back Up On Inspiration

Humuhumu · 23rd June 2008, 17:00

Hi,

Does anybody have experience with the 3 cell back up solution offered by NARKED AT 90 ?

Is it reliable, suitable also on a Inspiration Classic in state of a VR£ ?

Your opinions are very welcome.

Cheers

Humuhumu

Nipetdiver · 23rd June 2008, 18:22

I have a Vision and have the Narked at 90 3 cell monitor linked to it. I think it is a great back up. It tracked my Vision cells all the way through the dive. I wouldn't be without mine now. Especially as I know people who Vision either froze or switched of underwater. I also prefer the Shearwater Pursuit computer the the VR3.

**Fun Under Pressure** · 23rd June 2008, 20:18

I have used my SW Gf via a narked at 90 4th/5Th cell holder on my classic inspo. Worked great. And when the electronics faild you can can fly the unit manual and have a 3 cell readout with the GF. And with the narked at 90 cellholder the cell switching is a five minute work.

divemasterrob · 24th June 2008, 03:02

Whats a SW GF?
I ask this because I am interested in safety and the idea that deaths appear to involve, or at least implicated in, failure of some apsect of the eCCR Setpoint control system (electronics) with Inspiration units. Perhaps you would be kind enough to include PIX.
I reckon ANY sytem of having a totally redundant, basic PO2 readout would have saved many lives... and clearly as you say, gives a level of comfort to REALLY KNOW YOUR PO2, um... for sure, due to the second opinion!!!
One diver splashed-in and descended to 10M, then ascended to within 2M of the surface, lost PO2 minimum levels and blacked-out and died within minutes of splahing-in!

It also appears, like all deaths inexplicable how deaths seem to occur despite available gas in main & bailout sources and weights attached, and at or close to the surface. Many cases appear to be "pilot error", reinforcing the need to heed all safety protocols to the letter and spirit. I have no doubt that in case of errors, NO amount of gadets would save a diver, but certainly, given the right instrumentation... the chance of survival is arguably MUCH higher.

**Dsix36** · 24th June 2008, 03:41

SW = Shear Water brand computer

GF = model name

The ShearWater Pursuit is the newest model

***Beanie*** · 24th June 2008, 07:44

I had a shearwater HUD on both my classic and Vision now and it's great.

The only unknown is cell loading, I don't know if having 3 loads on the cells makes any difference to their performance or long term life.

The cell holders are of course excellent

blue_dubai · 3rd July 2008, 09:28

[quote=Fun Under Pressure;193880]I have used my SW Gf via a narked at 90 4th/5Th cell holder on my classic inspo. Worked great. And when the electronics faild you can can fly the unit manual and have a 3 cell readout with the GF.

Hi,
i dont understand that you can have a 3 cell readout, if you have 4th/5th cell holder

Sorry am still new to rebreather diving and want to understand.
I bought just recently the Vision and am looking how to implement a back-up if my handset is out of order. Am diving the VR-3 but heard that the reading is not accurate and does not match with the results of the AP handset.

All advice is appreciated the most,

Best regards,

Mehdi-Saman

PCDiver · 3rd July 2008, 12:06

Quote: (Originally Posted by blue_dubai)

Am diving the VR-3 but heard that the reading is not accurate and does not match with the results of the AP handset.

I'm using a VR3 as backup connected to one cell. The reading is accurate but a tad slow. The Vision updates faster. Would it be a problem? I don't think so. But I would never dive a rebreather based on a VR3 connected to one cell.

The other problem is the deco algorithm. The VR3 uses Buhlmann combined with deep stop. The Vision uses Gradient Factors. Both are rather incompatible. The VR3 is more conservative and starts with deeper stops.

cramerdn · 3rd July 2008, 12:29

Quote: (Originally Posted by blue_dubai)

Quote: (Originally Posted by Fun Under Pressure)

I have used my SW Gf via a narked at 90 4th/5Th cell holder on my classic inspo. Worked great. And when the electronics faild you can can fly the unit manual and have a 3 cell readout with the GF.

Hi,
i dont understand that you can have a 3 cell readout, if you have 4th/5th cell holder

Sorry am still new to rebreather diving and want to understand.
I bought just recently the Vision and am looking how to implement a back-up if my handset is out of order. Am diving the VR-3 but heard that the reading is not accurate and does not match with the results of the AP handset.
All advice is appreciated the most,
Best regards,
Mehdi-Saman

The new Narced at 90 kit has three leads that read off the existing three cells. It also uses the 4th/5th cell holder but only to plumb in a place for the new leads to exit the loop on their way to the Shearwater. If you wanted to you could install 4 or 5 cells and have each gizmo, visison or shearwater, read any three of them.

Gobfish1 · 3rd July 2008, 17:20

Quote: (Originally Posted by Humuhumu)

Hi,

Does anybody have experience with the 3 cell back up solution offered by NARKED AT 90 ?

Is it reliable, suitable also on a Inspiration Classic in state of a VR£ ?

Your opinions are very welcome.

Cheers

Humuhumu

i have the new SW computer and 3 cell read out , from John , nice bit of kit
works well , takes 15mis to put into a YBOD ,,

23rd June 2008, 17:00	#1 (permalink)
Humuhumu New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Not Bought Yet Join Date: Jan 2007 Location: Blue Planet Posts: 87	3 Cell Back Up On Inspiration Hi, Does anybody have experience with the 3 cell back up solution offered by NARKED AT 90 ? Is it reliable, suitable also on a Inspiration Classic in state of a VR£ ? Your opinions are very welcome. Cheers Humuhumu __________________ Humuhumu Nukunuku Apua'a
(Offline)

23rd June 2008, 18:22	#2 (permalink)
Nipetdiver New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Vision Join Date: Apr 2007 Location: Teeside Posts: 17	Re: 3 Cell Back Up On Inspiration I have a Vision and have the Narked at 90 3 cell monitor linked to it. I think it is a great back up. It tracked my Vision cells all the way through the dive. I wouldn't be without mine now. Especially as I know people who Vision either froze or switched of underwater. I also prefer the Shearwater Pursuit computer the the VR3. __________________ Nipetdiver
(Offline)

23rd June 2008, 20:18	#3 (permalink)
Fun Under Pressure Supporting Member Current Rebreather/s: Megalodon Other Rebreather/s: Inspiration Classic Join Date: Nov 2006 Location: Germany Posts: 649	Re: 3 Cell Back Up On Inspiration I have used my SW Gf via a narked at 90 4th/5Th cell holder on my classic inspo. Worked great. And when the electronics faild you can can fly the unit manual and have a 3 cell readout with the GF. And with the narked at 90 cellholder the cell switching is a five minute work. __________________ Cheers Markku Meg # 773
(Offline)

24th June 2008, 03:02	#4 (permalink)
divemasterrob New Member Current Rebreather/s: Inspiration Classic Other Rebreather/s: Inspiration Classic Join Date: Apr 2008 Location: australia Posts: 11	Re: 3 Cell Back Up On Inspiration Whats a SW GF? I ask this because I am interested in safety and the idea that deaths appear to involve, or at least implicated in, failure of some apsect of the eCCR Setpoint control system (electronics) with Inspiration units. Perhaps you would be kind enough to include PIX. I reckon ANY sytem of having a totally redundant, basic PO2 readout would have saved many lives... and clearly as you say, gives a level of comfort to REALLY KNOW YOUR PO2, um... for sure, due to the second opinion!!! One diver splashed-in and descended to 10M, then ascended to within 2M of the surface, lost PO2 minimum levels and blacked-out and died within minutes of splahing-in! It also appears, like all deaths inexplicable how deaths seem to occur despite available gas in main & bailout sources and weights attached, and at or close to the surface. Many cases appear to be "pilot error", reinforcing the need to heed all safety protocols to the letter and spirit. I have no doubt that in case of errors, NO amount of gadets would save a diver, but certainly, given the right instrumentation... the chance of survival is arguably MUCH higher. __________________ It's only kinky the first time!
(Offline)

24th June 2008, 03:41	#5 (permalink)
Dsix36 Going Down? Current Rebreather/s: Optima Other Rebreather/s: Join Date: Aug 2007 Location: Deerfield Beach, Florida Posts: 976	Re: 3 Cell Back Up On Inspiration SW = Shear Water brand computer GF = model name The ShearWater Pursuit is the newest model __________________ THE MORE THAT I LEARN, THE MORE THAT I STILL NEED TO LEARN!!!!!!
(Offline)

24th June 2008, 07:44	#6 (permalink)
*Beanie* Close to that red button Current Rebreather/s: Inspiration Classic Other Rebreather/s: Inspiration Vision Join Date: Jan 2005 Location: In da house! yeah baby! Posts: 3,207	Re: 3 Cell Back Up On Inspiration I had a shearwater HUD on both my classic and Vision now and it's great. The only unknown is cell loading, I don't know if having 3 loads on the cells makes any difference to their performance or long term life. The cell holders are of course excellent __________________ Beanie Gallery Admin & Library Assistant. www.outlawdivers.org.uk www.beandiving.co.uk www.beanengineering.co.uk www.divelife.co.uk
(Offline)

3rd July 2008, 09:28	#7 (permalink)
blue_dubai New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Join Date: Mar 2008 Location: Dubai Posts: 25	Re: 3 Cell Back Up On Inspiration [quote=Fun Under Pressure;193880]I have used my SW Gf via a narked at 90 4th/5Th cell holder on my classic inspo. Worked great. And when the electronics faild you can can fly the unit manual and have a 3 cell readout with the GF. Hi, i dont understand that you can have a 3 cell readout, if you have 4th/5th cell holder Sorry am still new to rebreather diving and want to understand. I bought just recently the Vision and am looking how to implement a back-up if my handset is out of order. Am diving the VR-3 but heard that the reading is not accurate and does not match with the results of the AP handset. All advice is appreciated the most, Best regards, Mehdi-Saman
(Offline)

3rd July 2008, 12:06	#8 (permalink)
PCDiver Submerge Productions Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Feb 2005 Location: Belgium Posts: 938	Re: 3 Cell Back Up On Inspiration Quote: (Originally Posted by blue_dubai) Am diving the VR-3 but heard that the reading is not accurate and does not match with the results of the AP handset. I'm using a VR3 as backup connected to one cell. The reading is accurate but a tad slow. The Vision updates faster. Would it be a problem? I don't think so. But I would never dive a rebreather based on a VR3 connected to one cell. The other problem is the deco algorithm. The VR3 uses Buhlmann combined with deep stop. The Vision uses Gradient Factors. Both are rather incompatible. The VR3 is more conservative and starts with deeper stops. __________________ >>>>> www.submergeproductions.com dedicated to promoting technical diving >>>>> Check out our dive show video interviews at http://www.submergeproductions.com/A...nterviews.aspx >>>>> Wreck dive videos http://www.submergeproductions.com/A...omthedeep.aspx
(Online)

3rd July 2008, 12:29	#9 (permalink)
cramerdn Obey my dog! Current Rebreather/s: Evolution Dolphin Other Rebreather/s: Dolphin Join Date: Dec 2006 Location: Townsville QLD Posts: 534	Re: 3 Cell Back Up On Inspiration Quote: (Originally Posted by blue_dubai) Quote: (Originally Posted by Fun Under Pressure) I have used my SW Gf via a narked at 90 4th/5Th cell holder on my classic inspo. Worked great. And when the electronics faild you can can fly the unit manual and have a 3 cell readout with the GF. Hi, i dont understand that you can have a 3 cell readout, if you have 4th/5th cell holder Sorry am still new to rebreather diving and want to understand. I bought just recently the Vision and am looking how to implement a back-up if my handset is out of order. Am diving the VR-3 but heard that the reading is not accurate and does not match with the results of the AP handset. All advice is appreciated the most, Best regards, Mehdi-Saman The new Narced at 90 kit has three leads that read off the existing three cells. It also uses the 4th/5th cell holder but only to plumb in a place for the new leads to exit the loop on their way to the Shearwater. If you wanted to you could install 4 or 5 cells and have each gizmo, visison or shearwater, read any three of them. __________________ "Its better to live one day as a tiger than an entire life as a worm." "But who's ever heard of a worm skin rug?"
(Offline)

3rd July 2008, 17:20	#10 (permalink)
Gobfish1 Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Inspiration Classic Inspiration Vision Evolution Join Date: Apr 2005 Location: Manchester UK Posts: 365	Re: 3 Cell Back Up On Inspiration Quote: (Originally Posted by Humuhumu) Hi, Does anybody have experience with the 3 cell back up solution offered by NARKED AT 90 ? Is it reliable, suitable also on a Inspiration Classic in state of a VR£ ? Your opinions are very welcome. Cheers Humuhumu i have the new SW computer and 3 cell read out , from John , nice bit of kit works well , takes 15mis to put into a YBOD ,, __________________ Steve G Apparently not the only gay diver in the village http://drinkingliberally.org/blogs/o...nzee-glock.gif http://www.scubatunes.com/audio/vol01/mp3/HiTech.mp3
(Offline)

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