Differences in VR3 run times

decoweenie · 15th November 2006, 09:37

Quote: (Originally Posted by Drmike)

(The oldest apears to be more conservative)

AFAIK, the older VR-3 (especially the brick style) has 20% conservatism hidden into the algorithm even when set to zero-conservatism by the user.

Kevin would remove it on request on the original version. Then the new style came out, the 20% was taken off.

Drmike · 15th November 2006, 09:45

Quote: (Originally Posted by decoweenie)

AFAIK, the older VR-3 (especially the brick style) has 20% conservatism hidden into the algorithm even when set to zero-conservatism by the user.

Kevin would remove it on request on the original version. Then the new style came out, the 20% was taken off.

All 3 of mine are the new style as is wombles so its a mute point.

womble · 10th July 2007, 21:17

Thanks everyone,

Yes it was the different algorithms. I've had both updated to version 2007 and they are now both spot on

Andy Del · 11th July 2007, 09:07

Quote: (Originally Posted by womble)

Thanks everyone,

Yes it was the different algorithms. I've had both updated to version 2007 and they are now both spot on

this does give youtwo computers which read the same, but it doesn't answer the question of why they were reading differently in the first place. My VR3 with v.5 software was giving such long stop times I sent it back. It should arrive any day now (after 2 and a bit months) but I still have no idea if it was faulty.

Delta-p are not giving me cause to think they are producing a reliable product with good customer service...

divetheworld · 12th July 2007, 09:09

Quote: (Originally Posted by Andy Del)

Delta-p are not giving me cause to think they are producing a reliable product with good customer service...

Really? Shocking news.

HMP · 12th July 2007, 15:53

I have a v5 VR3 and a buddy of mine has the v2 or v3 I cant remember. I always have more deco to do and enter deco more quickly than he does. I have the conservativeness (not entirely sure thats a word but you know what I meen) set to 0. So from my point of view the algorithm has got more conservative with time not less (which seems to be the trend with most computers). Has the algorithm changed this year?

decoweenie · 12th July 2007, 16:55

Quote: (Originally Posted by HMP)

Has the algorithm changed this year?

Who knows...

Sounds like they snuck the conservatism back into the algorithm again. Don't you just love it when the manufacturer does that...

IMHO, the manufacturer should be upfront and let the users select the level of conservatism as they chose with plenty of warnings in the manual.

I guess it is just easier to treat everyone at the lowest denominator level.

db8us · 12th July 2007, 18:35

Quote: (Originally Posted by womble)

Thanks everyone,

Yes it was the different algorithms. I've had both updated to version 2007 and they are now both spot on

SPOT on might be, but do they show reald deco?

SimonK · 12th July 2007, 18:49

Quote: (Originally Posted by db8us)

SPOT on might be, but do they show reald deco?

define 'real deco'

HMP · 12th July 2007, 18:56

Would have been interesting to compare the new 2007 update with the older one......

15th November 2006, 09:37	#11 (permalink)
decoweenie Crash Test Dummy Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Feb 2005 Location: Cairo Posts: 5,487	Re: Differences in VR3 run times Quote: (Originally Posted by Drmike) (The oldest apears to be more conservative) AFAIK, the older VR-3 (especially the brick style) has 20% conservatism hidden into the algorithm even when set to zero-conservatism by the user. Kevin would remove it on request on the original version. Then the new style came out, the 20% was taken off. __________________ "...after a while you get bored offering advice to a bull that like to keep butting the fence with its head rather than walking through the open gate..." - Rebreather World PM
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15th November 2006, 09:45	#12 (permalink)
Drmike RBW Member Current Rebreather/s: MK 15.X Ouroboros Other CCR Home Build Other Rebreather/s: Inspiration Classic Other CCR Home Build Join Date: Feb 2005 Posts: 3,378	Re: Differences in VR3 run times Quote: (Originally Posted by decoweenie) AFAIK, the older VR-3 (especially the brick style) has 20% conservatism hidden into the algorithm even when set to zero-conservatism by the user. Kevin would remove it on request on the original version. Then the new style came out, the 20% was taken off. All 3 of mine are the new style as is wombles so its a mute point. __________________ Cave diving is a sport Wreck diving is a sport Diving in general is a sport 'Rebreather diving' is not a sport its the delusional obsession with a highly dangerous and often inappropriate piece of equipment Last edited by Drmike : 15th November 2006 at 09:47.
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10th July 2007, 21:17	#13 (permalink)
womble RBW Member Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Aug 2006 Location: UK Posts: 201	Re: Differences in VR3 run times Thanks everyone, Yes it was the different algorithms. I've had both updated to version 2007 and they are now both spot on __________________ "What could possibly go wrong?? . . "
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11th July 2007, 09:07	#14 (permalink)
Andy Del Classic KISSer Current Rebreather/s: Sport Kiss Classic Kiss Other Rebreather/s: Join Date: Feb 2005 Location: Australia, Sunny Sydney Posts: 438	Re: Differences in VR3 run times Quote: (Originally Posted by womble) Thanks everyone, Yes it was the different algorithms. I've had both updated to version 2007 and they are now both spot on this does give youtwo computers which read the same, but it doesn't answer the question of why they were reading differently in the first place. My VR3 with v.5 software was giving such long stop times I sent it back. It should arrive any day now (after 2 and a bit months) but I still have no idea if it was faulty. Delta-p are not giving me cause to think they are producing a reliable product with good customer service... __________________ Yellow - the colour of greatness!
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12th July 2007, 09:09	#15 (permalink)
divetheworld Dive porn pimp Current Rebreather/s: Inspiration Classic Other CCR Other Rebreather/s: Not Bought Yet Inspiration Classic Inspiration Vision Classic Kiss Other CCR Join Date: Mar 2005 Location: Leeds, England Posts: 1,636	Re: Differences in VR3 run times Quote: (Originally Posted by Andy Del) Delta-p are not giving me cause to think they are producing a reliable product with good customer service... Really? Shocking news. __________________ Attitude and self praise is no reccomendation. Dont try to be a great man, just be a man and let history be the judge of you. *WWW.NARKEDAT90.CO.UK* *http://www.grpservices.com/pursuit/* Supporting Shearwater Research Products in Europe
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12th July 2007, 15:53	#16 (permalink)
HMP Custom Title Allowed! Current Rebreather/s: MK 15.X Dolphin Other Rebreather/s: Inspiration Vision Dolphin Join Date: Aug 2006 Location: Plymouth, U.K. Posts: 102	Re: Differences in VR3 run times I have a v5 VR3 and a buddy of mine has the v2 or v3 I cant remember. I always have more deco to do and enter deco more quickly than he does. I have the conservativeness (not entirely sure thats a word but you know what I meen) set to 0. So from my point of view the algorithm has got more conservative with time not less (which seems to be the trend with most computers). Has the algorithm changed this year?
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12th July 2007, 16:55	#17 (permalink)
decoweenie Crash Test Dummy Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Feb 2005 Location: Cairo Posts: 5,487	Re: Differences in VR3 run times Quote: (Originally Posted by HMP) Has the algorithm changed this year? Who knows... Sounds like they snuck the conservatism back into the algorithm again. Don't you just love it when the manufacturer does that... IMHO, the manufacturer should be upfront and let the users select the level of conservatism as they chose with plenty of warnings in the manual. I guess it is just easier to treat everyone at the lowest denominator level. __________________ "...after a while you get bored offering advice to a bull that like to keep butting the fence with its head rather than walking through the open gate..." - Rebreather World PM
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12th July 2007, 18:35	#18 (permalink)
db8us Custom Title Allowed! Current Rebreather/s: Other SCR Other Rebreather/s: Other SCR Join Date: Sep 2005 Location: Germany Posts: 238	Re: Differences in VR3 run times Quote: (Originally Posted by womble) Thanks everyone, Yes it was the different algorithms. I've had both updated to version 2007 and they are now both spot on SPOT on might be, but do they show reald deco?
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12th July 2007, 18:49	#19 (permalink)
SimonK Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Oct 2005 Location: Cumbria UK Posts: 231	Re: Differences in VR3 run times Quote: (Originally Posted by db8us) SPOT on might be, but do they show reald deco? define 'real deco'
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12th July 2007, 18:56	#20 (permalink)
HMP Custom Title Allowed! Current Rebreather/s: MK 15.X Dolphin Other Rebreather/s: Inspiration Vision Dolphin Join Date: Aug 2006 Location: Plymouth, U.K. Posts: 102	Re: Differences in VR3 run times Would have been interesting to compare the new 2007 update with the older one......
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