2 computers, or ?

Pierre Farrugia · 27th July 2006, 09:14

Quote: (Originally Posted by sadave)

Where's the option for one computer + one timer + tables?

VR3, Uwatec bottom timer, and Vplan tables laminated in the pocket.

I took it forgranted that if one is using tables, one needs a bottom timer/depth gauge + watch

SO you should have voted (sorry not to have made it clear! ) 1 computer + tabels

Pierre Farrugia · 27th July 2006, 09:20

Quote: (Originally Posted by Beanie)

I have VR3 currently on 1.25 SP con 20 also plumbed into the loop on my 4th cell holder

- not using for deco as I'm running it on a 3 year old cell, still playing with it, will get a new cell sometime

Also have a Vytec with bottom gas - 21-32%, 50% and 80% set.

Then a old Suunto solution air computer.

Tables laminated and written on slate.

Beanie, Have I understand well, do you have a VR3 with forth cell, with 20% conservation ? But if you use the 4th cell the set point of 1.25 is ignored, right ?

***Beanie*** · 27th July 2006, 09:43

Quote: (Originally Posted by Pierre Farrugia)

Beanie, Have I understand well, do you have a VR3 with forth cell, with 20% conservation ? But if you use the 4th cell the set point of 1.25 is ignored, right ?

No I have PPO2 deco disabled so it is currently just monitoring the PPO2 but not calculating deco from it.

It does depend which version of software you have, on mine you can turn the PPO2 on and Deco seperatly
xPPO and xDeco (I think)

Look for john's (Mdemon) Thread on it the different versions are there.

I have 3.xx btw

Sue · 27th July 2006, 10:59

VR3 + Suunto Stinger in gauge mode + tables (just ordered from IANTD)

Sue

sven · 27th July 2006, 13:32

Interesting poll, thanks Pierre!

Inspiration Classic:

VR3 (no 4th cell), Oceanic Versa Pro (in gauge mode), Uwatec bottom timer, 2 sets of backup tables. Used on all deco dives.
VR3 and Oceanic Versa Pro (in gauge mode) used on all non-deco dives.

nmanfield · 27th July 2006, 14:21

Quote: (Originally Posted by sadave)

Where's the option for one computer + one timer + tables?

VR3, Uwatec bottom timer, and Vplan tables laminated in the pocket.

Same same, but cut custom tables for each dive and leave them in Halcyon notebook (err, I do take the notebook with me by the way!)

Also followed Dr Mike's advice and wear as much Halcyon kit as possible - not becasue it's any good but it's great for winding up the GUE/DIR lot!

Mark Chase · 27th July 2006, 17:27

Hammer Head set to 25/85GF A VR3 on zero safety on 1.3 set point a Vytec in Gauge mode and a brain for DOTF sort of "oh crap" situations.

ATB

Mark Chase

**RichClark** · 27th July 2006, 18:25

Quote: (Originally Posted by Mark Chase)

and a brain for DOTF sort of "oh crap" situations.

But thats not DOTF as in Ratio Deco is it? Isn't more Deco Made Up From Previous Experience (DMUFPE) + a bit more at 6 for good measure

DMUFPE just isn't as catchy is it!

To answer the original question, I use my VR3 set to 1.2, and maintain my KISS above 1.2 and carry tables cut with GAP as my backup. I did toy with the idea of 2 VR3's whilst I was OC trimix but never decided that it was worth it, tables just work!

In due course I expect I'll get the Shearwater and integrate it into my KISS loop and carry my VR3 and tables for that really bad day.

Cheers

Rich

UKSteve · 27th July 2006, 19:10

1) Vision /Trimix with 15/85GF
2) VR3 (not connected) @ 0.05 below nominal set point, 20% Cons
3) V-Planner Tables (Cons +3) for on loop and bail out ascents. Considering switching these to Zero Cons for bailout.

My current thinking is to switch VR3 to zero cons if I had to bail out and was a bit marginal on gas. Not absolutely sure how it will react if I do this...anyone know if it will recalculate deco penalty or just change the effect of the ongoing deco?

Steve

Mark Chase · 27th July 2006, 22:43

Quote: (Originally Posted by RichClark)

But thats not DOTF as in Ratio Deco is it? Isn't more Deco Made Up From Previous Experience (DMUFPE) + a bit more at 6 for good measure

DMUFPE just isn't as catchy is it!

To answer the original question, I use my VR3 set to 1.2, and maintain my KISS above 1.2 and carry tables cut with GAP as my backup. I did toy with the idea of 2 VR3's whilst I was OC trimix but never decided that it was worth it, tables just work!

In due course I expect I'll get the Shearwater and integrate it into my KISS loop and carry my VR3 and tables for that really bad day.

Cheers

Rich

Actualy I do use the GUE DOTF as a kind of base line. I have run a few profiles using GUE DOTF and its close enough for jaz but as you say I'd pad it out a bit.

Ist stop 75% max depth, 3m/min ascent to 21m then a ratio of 1:1 on a 45m base line with 5mins added for every 3m over base and 50% of the stop tine at6m and 50% distributed between 21 and 9m.

It kind of works OK, 55m- 70m I go for the 1:2 ratio and add 25% of the 21-9m stop time to the stops from 75% max depth and 21m

If you do the math it works out prety good and you just have to pad a bit more as you get closer to its limits.

so 30min at 70m 1:2 ratio = first stop at 52m and deco from 21m up of 60mins. Deco between 52m and 21m = 15mins and the 6m stop will be 30mins.

My rough DOTF

1@52
1@49
1@46
1@43
1@41
1@37
1@33
1@30
2@27
2@23
3@25
4@21
4@18
5@15
6@12
11@9
30@6

VPMB level 2 safety

0.33 @ 48
1 @ 45
1 @ 42
1 @ 39
1 @ 36
2 @ 33
2 @ 30
2 @ 27
4 @ 24
3 @ 21
5 @ 18
7 @ 12
9 @ 9
36 @ 6

See close enough for jaz

I reckon Id live to complain to DeltaP

ATB

Mark Chase

View Poll Results: What do you use for deco managment
1 computer + tabels	44	31.43%
2 computers + tabels	48	34.29%
Bottom timer + tabels	13	9.29%
2 computers only	23	16.43%
Other - please state	16	11.43%
Multiple Choice Poll. Voters: 140. You may not vote on this poll

27th July 2006, 09:14	#21 (permalink)
Pierre Farrugia Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Feb 2005 Location: Malta Posts: 636	Re: 2 computers, or ? Quote: (Originally Posted by sadave) Where's the option for one computer + one timer + tables? VR3, Uwatec bottom timer, and Vplan tables laminated in the pocket. I took it forgranted that if one is using tables, one needs a bottom timer/depth gauge + watch SO you should have voted (sorry not to have made it clear! ) 1 computer + tabels __________________ Pierre Farrugia My wife told me " If you don't quit diving I'm going to leave you" My reply " God, I'll miss you" www.atlam.org www.divemed.com Last edited by Pierre Farrugia : 27th July 2006 at 09:21.
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27th July 2006, 09:20	#22 (permalink)
Pierre Farrugia Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Feb 2005 Location: Malta Posts: 636	Re: 2 computers, or ? Quote: (Originally Posted by Beanie) I have VR3 currently on 1.25 SP con 20 also plumbed into the loop on my 4th cell holder - not using for deco as I'm running it on a 3 year old cell, still playing with it, will get a new cell sometime Also have a Vytec with bottom gas - 21-32%, 50% and 80% set. Then a old Suunto solution air computer. Tables laminated and written on slate. Beanie, Have I understand well, do you have a VR3 with forth cell, with 20% conservation ? But if you use the 4th cell the set point of 1.25 is ignored, right ? __________________ Pierre Farrugia My wife told me " If you don't quit diving I'm going to leave you" My reply " God, I'll miss you" www.atlam.org www.divemed.com
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27th July 2006, 09:43	#23 (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: 2 computers, or ? Quote: (Originally Posted by Pierre Farrugia) Beanie, Have I understand well, do you have a VR3 with forth cell, with 20% conservation ? But if you use the 4th cell the set point of 1.25 is ignored, right ? No I have PPO2 deco disabled so it is currently just monitoring the PPO2 but not calculating deco from it. It does depend which version of software you have, on mine you can turn the PPO2 on and Deco seperatly xPPO and xDeco (I think) Look for john's (Mdemon) Thread on it the different versions are there. I have 3.xx btw __________________ Beanie Gallery Admin & Library Assistant. www.outlawdivers.org.uk www.beandiving.co.uk www.beanengineering.co.uk www.divelife.co.uk
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27th July 2006, 10:59	#24 (permalink)
Sue Rebreather World Writer Current Rebreather/s: Megalodon Sport Kiss Other Rebreather/s: Join Date: Mar 2005 Location: Portugal Posts: 161	Re: 2 computers, or ? VR3 + Suunto Stinger in gauge mode + tables (just ordered from IANTD) Sue
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27th July 2006, 13:32	#25 (permalink)
sven Blogs Admin / Forum Mod Current Rebreather/s: Inspiration Classic Other Rebreather/s: Evolution Join Date: Nov 2005 Location: Sydney Posts: 574	Re: 2 computers, or ? Interesting poll, thanks Pierre! Inspiration Classic: VR3 (no 4th cell), Oceanic Versa Pro (in gauge mode), Uwatec bottom timer, 2 sets of backup tables. Used on all deco dives. VR3 and Oceanic Versa Pro (in gauge mode) used on all non-deco dives. __________________ Regards, Sven [SIZE=1]The Sydney Project website: [URL]http://www.sydneyproject.com[/URL] My Blog: [URL]http://sven.rebreatherworld.com[/URL] "Whenever you find yourself on the side of the majority, it's time to pause and reflect." Mark Twain[/SIZE]
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27th July 2006, 14:21	#26 (permalink)
nmanfield Megalegalegalegadingdong! Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: May 2005 Location: Odessa, Ukraine Posts: 329	Re: 2 computers, or ? Quote: (Originally Posted by sadave) Where's the option for one computer + one timer + tables? VR3, Uwatec bottom timer, and Vplan tables laminated in the pocket. Same same, but cut custom tables for each dive and leave them in Halcyon notebook (err, I do take the notebook with me by the way!) Also followed Dr Mike's advice and wear as much Halcyon kit as possible - not becasue it's any good but it's great for winding up the GUE/DIR lot! __________________ Tub 'O Lard
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27th July 2006, 17:27	#27 (permalink)
Mark Chase I go down for ages Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Jan 2005 Location: Kent Posts: 2,556	Re: 2 computers, or ? Hammer Head set to 25/85GF A VR3 on zero safety on 1.3 set point a Vytec in Gauge mode and a brain for DOTF sort of "oh crap" situations. ATB Mark Chase __________________ Is it supposed to make that noise ? I took my unit to the dive shop and demanded they bolt on every thing that would fit. Join my elite diving teem and get a Tshirt "Doing It Chasey"Hammerhead Eccr Advanced Diving System
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27th July 2006, 18:25	#28 (permalink)
RichClark Classic KISS No. 226 Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: Mar 2005 Location: Hove, UK Posts: 771	Re: 2 computers, or ? Quote: (Originally Posted by Mark Chase) and a brain for DOTF sort of "oh crap" situations. But thats not DOTF as in Ratio Deco is it? Isn't more Deco Made Up From Previous Experience (DMUFPE) + a bit more at 6 for good measure DMUFPE just isn't as catchy is it! To answer the original question, I use my VR3 set to 1.2, and maintain my KISS above 1.2 and carry tables cut with GAP as my backup. I did toy with the idea of 2 VR3's whilst I was OC trimix but never decided that it was worth it, tables just work! In due course I expect I'll get the Shearwater and integrate it into my KISS loop and carry my VR3 and tables for that really bad day. Cheers Rich __________________ The more I learn about women, the more I want to go diving... just don't tell my wife I said that To taste something a little different, try http://www.thechillikitchen.co.uk Last edited by RichClark : 27th July 2006 at 18:28.
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27th July 2006, 19:10	#29 (permalink)
UKSteve Still a novice... Current Rebreather/s: Inspiration Vision Other Rebreather/s: Join Date: Jul 2005 Location: Weymouth, UK Posts: 577	Re: 2 computers, or ? 1) Vision /Trimix with 15/85GF 2) VR3 (not connected) @ 0.05 below nominal set point, 20% Cons 3) V-Planner Tables (Cons +3) for on loop and bail out ascents. Considering switching these to Zero Cons for bailout. My current thinking is to switch VR3 to zero cons if I had to bail out and was a bit marginal on gas. Not absolutely sure how it will react if I do this...anyone know if it will recalculate deco penalty or just change the effect of the ongoing deco? Steve
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27th July 2006, 22:43	#30 (permalink)
Mark Chase I go down for ages Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Jan 2005 Location: Kent Posts: 2,556	Re: 2 computers, or ? Quote: (Originally Posted by RichClark) But thats not DOTF as in Ratio Deco is it? Isn't more Deco Made Up From Previous Experience (DMUFPE) + a bit more at 6 for good measure DMUFPE just isn't as catchy is it! To answer the original question, I use my VR3 set to 1.2, and maintain my KISS above 1.2 and carry tables cut with GAP as my backup. I did toy with the idea of 2 VR3's whilst I was OC trimix but never decided that it was worth it, tables just work! In due course I expect I'll get the Shearwater and integrate it into my KISS loop and carry my VR3 and tables for that really bad day. Cheers Rich Actualy I do use the GUE DOTF as a kind of base line. I have run a few profiles using GUE DOTF and its close enough for jaz but as you say I'd pad it out a bit. Ist stop 75% max depth, 3m/min ascent to 21m then a ratio of 1:1 on a 45m base line with 5mins added for every 3m over base and 50% of the stop tine at6m and 50% distributed between 21 and 9m. It kind of works OK, 55m- 70m I go for the 1:2 ratio and add 25% of the 21-9m stop time to the stops from 75% max depth and 21m If you do the math it works out prety good and you just have to pad a bit more as you get closer to its limits. so 30min at 70m 1:2 ratio = first stop at 52m and deco from 21m up of 60mins. Deco between 52m and 21m = 15mins and the 6m stop will be 30mins. My rough DOTF 1@52 1@49 1@46 1@43 1@41 1@37 1@33 1@30 2@27 2@23 3@25 4@21 4@18 5@15 6@12 11@9 30@6 VPMB level 2 safety 0.33 @ 48 1 @ 45 1 @ 42 1 @ 39 1 @ 36 2 @ 33 2 @ 30 2 @ 27 4 @ 24 3 @ 21 5 @ 18 7 @ 12 9 @ 9 36 @ 6 See close enough for jaz I reckon Id live to complain to DeltaP ATB Mark Chase __________________ Is it supposed to make that noise ? I took my unit to the dive shop and demanded they bolt on every thing that would fit. Join my elite diving teem and get a Tshirt "Doing It Chasey"Hammerhead Eccr Advanced Diving System
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