What setpoint do you use?

rogeringebo · 7th March 2006, 17:37

I always dive a pO2 of 1,2 and then raise it to 1,4 or more on deco...
I know some people use,lets say,1,3 through the whole dive....
Some people use less than 1,2...
How do you do it and why? Please explain your ideas on this subject

Cheers
Rodge

JonnyB · 7th March 2006, 17:51

Setpoint 1.2, manual up to 1.3
max deco 1.5

This way suits me better than any other, though my plan will and should vary depending on the dive.

/Jonny

Depth-junkie · 7th March 2006, 18:29

i use 0.70 from the surface down to 15m then autoswitch kicks in and takes the setpoint to 1.3 which i use for the rest of the descent and all of the bottom phase and asscent/deco, but for the last 5min of the 6m stop i will do a O2 flush and run the unit manualy at 1.5-1.6 for the remaining deco.

ATB
Gareth

Nick uk. · 7th March 2006, 19:28

0.7 from surface to Target Depth, Then switch to 1.3 or 1.2 depending on depth and run time, 6mt. O2 flush, air breaks where required.

wizbang · 7th March 2006, 19:32

I plan on .7 to the bottom and then 1.3 from there on including deco.
I dive .7 surface increasing on decent, adjust to 1.3 odd on bottom hold till at 6m where I flush the system back to 1.5 for the remainder of deco etc.
I do check that the CNS isn't silly. It gives me a little room for error.

**JPJones** · 7th March 2006, 21:15

I dive almost every day and don't run it any higher than needed. Normally I use 1.2 and if needed I go to 1.4 for deco but never higher than 1.4. I laso use 1.0 or lower on shallow stuff to keep my O2 loading in reason.

Nick uk. · 7th March 2006, 21:20

Quote: (Originally Posted by JPJones)

I laso use 1.0 or lower on shallow stuff to keep my O2 loading in reason.

I don't understand this bit? Unless you mean because you'll be spending a hell of a long time in the water on the shallower dives.

Jordan · 7th March 2006, 22:09

Quote: (Originally Posted by Nick uk.)

I don't understand this bit? Unless you mean because you'll be spending a hell of a long time in the water on the shallower dives.

When diving everyday I would probably back off the O2 too...pulmonary O2 hit probably means heaven

or hell

for you. Shallow means inert gas loading isn't as much of a concern, so why not back it off a bit? Yeah, lots of shallow caves to spend oodles of time in. Peacock is a good one...hmm speaking of shallow caves and getting more and more off subject here, but what the hell - Bonnett and many of the caves in the Riviera Maya are VERY shallow that you could take, dare I say

OC and be OK). I've been thinking 'bout this for a bit and would probably be as happy in OC in such shallow places. But, hopefully I will just forget how to dive those things and I'll only know how to dive the Rebreather

Nick uk. · 7th March 2006, 22:27

Ah yes, DIVING EVERY DAY thats not a 'problem' i have to deal with.

**JPJones** · 7th March 2006, 23:21

Quote: (Originally Posted by Nick uk.)

I don't understand this bit? Unless you mean because you'll be spending a hell of a long time in the water on the shallower dives.

I dive sometimes 14 or 15 days without a break and I teach cave and trimix so I'm pushing the O2 clock most of the time and 300 OTU's a day don't go far.

7th March 2006, 17:37	#1 (permalink)
rogeringebo Done with bubbles Current Rebreather/s: Pelagian Other Rebreather/s: Megalodon Classic Kiss Pelagian Join Date: Sep 2005 Location: Stockholm Sweden Posts: 671	What setpoint do you use? I always dive a pO2 of 1,2 and then raise it to 1,4 or more on deco... I know some people use,lets say,1,3 through the whole dive.... Some people use less than 1,2... How do you do it and why? Please explain your ideas on this subject Cheers Rodge
(Offline)

7th March 2006, 17:51	#2 (permalink)
JonnyB Jonny The Hatch Current Rebreather/s: MK 15.X Titan Home Build Other Rebreather/s: Not Bought Yet Inspiration Classic Megalodon Sport Kiss Classic Kiss Home Build Join Date: Jan 2005 Location: Sweden (Stockholm)/Cyprus(Ayia Napa) Posts: 940	Re: What setpoint do you use? Setpoint 1.2, manual up to 1.3 max deco 1.5 This way suits me better than any other, though my plan will and should vary depending on the dive. /Jonny __________________ A quote from Crazyduck - In remembering our own Rob Davies. "Outbound flight 777 heavy you are cleared for flight Due west into that warm red Texas sunset You have angels on your wings and divers memories on your six." Rest In Peace http://www.divetekcyprus.com http://www.diveccr.com
(Offline)

7th March 2006, 18:29	#3 (permalink)
Depth-junkie 10/52 Psycho Current Rebreather/s: Inspiration Vision Other Rebreather/s: Join Date: Aug 2005 Location: Wrexham Posts: 288	Re: What setpoint do you use? i use 0.70 from the surface down to 15m then autoswitch kicks in and takes the setpoint to 1.3 which i use for the rest of the descent and all of the bottom phase and asscent/deco, but for the last 5min of the 6m stop i will do a O2 flush and run the unit manualy at 1.5-1.6 for the remaining deco. ATB Gareth
(Offline)

7th March 2006, 19:28	#4 (permalink)
Nick uk. Made in England. Current Rebreather/s: Inspiration Classic Azimuth Other Rebreather/s: Azimuth Join Date: Nov 2005 Location: Viale C.Colombo 75 Marina di Carrara. MS 54036 Italy Posts: 579	Re: What setpoint do you use? 0.7 from surface to Target Depth, Then switch to 1.3 or 1.2 depending on depth and run time, 6mt. O2 flush, air breaks where required. __________________ If it aint broke....don't fix it, and if it is.............well......get another one! divechief2000@hotmail.com
(Offline)

7th March 2006, 19:32	#5 (permalink)
wizbang WEB MERMEN Current Rebreather/s: Inspiration Classic Dolphin Home Build Other Rebreather/s: Not Bought Yet Inspiration Vision Evolution Prism Topaz Sport Kiss Classic Kiss Dolphin Home Build Join Date: Feb 2005 Location: Perth Australia Posts: 379	Re: What setpoint do you use? I plan on .7 to the bottom and then 1.3 from there on including deco. I dive .7 surface increasing on decent, adjust to 1.3 odd on bottom hold till at 6m where I flush the system back to 1.5 for the remainder of deco etc. I do check that the CNS isn't silly. It gives me a little room for error.
(Offline)

7th March 2006, 21:15	#6 (permalink)
JPJones O2ptima Test Dummy Current Rebreather/s: Inspiration Classic Megalodon Sport Kiss Classic Kiss Optima Titan Other Rebreather/s: Join Date: Sep 2005 Location: Florida Posts: 367	Re: What setpoint do you use? I dive almost every day and don't run it any higher than needed. Normally I use 1.2 and if needed I go to 1.4 for deco but never higher than 1.4. I laso use 1.0 or lower on shallow stuff to keep my O2 loading in reason. __________________ NSS/CDS Training Chairman www.jpjscuba.com
(Offline)

7th March 2006, 21:20	#7 (permalink)
Nick uk. Made in England. Current Rebreather/s: Inspiration Classic Azimuth Other Rebreather/s: Azimuth Join Date: Nov 2005 Location: Viale C.Colombo 75 Marina di Carrara. MS 54036 Italy Posts: 579	Re: What setpoint do you use? Quote: (Originally Posted by JPJones) I laso use 1.0 or lower on shallow stuff to keep my O2 loading in reason. I don't understand this bit? Unless you mean because you'll be spending a hell of a long time in the water on the shallower dives. __________________ If it aint broke....don't fix it, and if it is.............well......get another one! divechief2000@hotmail.com
(Offline)

7th March 2006, 22:09	#8 (permalink)
Jordan Custom Title Allowed! Current Rebreather/s: Optima Other Rebreather/s: Join Date: May 2005 Location: North Florida Posts: 219	Re: What setpoint do you use? Quote: (Originally Posted by Nick uk.) I don't understand this bit? Unless you mean because you'll be spending a hell of a long time in the water on the shallower dives. When diving everyday I would probably back off the O2 too...pulmonary O2 hit probably means heaven or hell for you. Shallow means inert gas loading isn't as much of a concern, so why not back it off a bit? Yeah, lots of shallow caves to spend oodles of time in. Peacock is a good one...hmm speaking of shallow caves and getting more and more off subject here, but what the hell - Bonnett and many of the caves in the Riviera Maya are VERY shallow that you could take, dare I say OC and be OK). I've been thinking 'bout this for a bit and would probably be as happy in OC in such shallow places. But, hopefully I will just forget how to dive those things and I'll only know how to dive the Rebreather __________________ Is it clear? No. Well, let's go anyways. "Those who would sacrifice a little freedom for a little order, will lose both, and deserve neither." Thomas Jefferson
(Offline)

7th March 2006, 22:27	#9 (permalink)
Nick uk. Made in England. Current Rebreather/s: Inspiration Classic Azimuth Other Rebreather/s: Azimuth Join Date: Nov 2005 Location: Viale C.Colombo 75 Marina di Carrara. MS 54036 Italy Posts: 579	Re: What setpoint do you use? Ah yes, DIVING EVERY DAY thats not a 'problem' i have to deal with. __________________ If it aint broke....don't fix it, and if it is.............well......get another one! divechief2000@hotmail.com
(Offline)

7th March 2006, 23:21	#10 (permalink)
JPJones O2ptima Test Dummy Current Rebreather/s: Inspiration Classic Megalodon Sport Kiss Classic Kiss Optima Titan Other Rebreather/s: Join Date: Sep 2005 Location: Florida Posts: 367	Re: What setpoint do you use? Quote: (Originally Posted by Nick uk.) I don't understand this bit? Unless you mean because you'll be spending a hell of a long time in the water on the shallower dives. I dive sometimes 14 or 15 days without a break and I teach cave and trimix so I'm pushing the O2 clock most of the time and 300 OTU's a day don't go far. __________________ NSS/CDS Training Chairman www.jpjscuba.com
(Offline)

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