Which vr3 version to buy ?

colinicky · 29th September 2006, 18:56

I am currently diving my vision & using my Vytec with tables as a back up .
Going to sell the Vytec & put the money towards a VR3 the question is which version should I go for that is going to be comparable with the vision ? Would love a sheerwater but their just to much money

What are the differences between the versions ? I'm not worried about linking it into the vision it will be stand alone .
TIA

mverick · 29th September 2006, 19:17

Off Ebay,

VR3
monocrome oc/cc $1399
Color oc/cc $1699
VPM color oc/cc $1999

Shearwater is $1400

So, I thought the price was comparable.

Not trying to sway you. Just thought they were comparable.

colinicky · 29th September 2006, 19:42

Quote: (Originally Posted by mverick)

Off Ebay,

VR3
monocrome oc/cc $1399
Color oc/cc $1699
VPM color oc/cc $1999

Shearwater is $1400

So, I thought the price was comparable.

Not trying to sway you. Just thought they were comparable.

In $ yes they are but I can't find a cheap sheerwater in the uk to compare to a secondhand VR£

***Beanie*** · 29th September 2006, 21:26

Well you have two options to start
CC Nitrox and CC Trimix
then you have colour screen
VPM etc

if your only diving Nitrox for the time being get a CC nitrox and upgrade later the price difference is the same as the pin to upgrade (or it was)

Barrie Law · 29th September 2006, 21:43

Quote: (Originally Posted by colinicky)

I am currently diving my vision & using my Vytec with tables as a back up .
Going to sell the Vytec & put the money towards a VR3 the question is which version should I go for that is going to be comparable with the vision ? Would love a sheerwater but their just to much money

What are the differences between the versions ? I'm not worried about linking it into the vision it will be stand alone .
TIA

Hi Colin,

You will need the Vr3 C4 if you want to use it for CCR diving with mixed gas this would cost you new 690 stg, 1030 Euro or 1300 USD.

The difference between the versions is:

C1 Open Circuit Nitrox

C2 Closed Circuit Air Diluent

C3 Open Circuit Trimix

C4 Closed Circuit Trimix Diluent.

The Closed Circuit models can also be used in Open Circuit mode.

The above units if fitted with a colour screen will add 179 stg, 265 euro or 335 USD to the new cost, if you buy a second hand unit it can be fitted with a colour screen at the same cost but you will have to allow postage to Delta P and back.

There are several ways to connect the Vr3 to a 4th Cell and the Pin Number to open the Vr3 cost's 133 Stg, 197 Euro or 249 USD so bear that in mind if you are looking at second hand 4th Cell kit's, they do not come with the pin number unless you buy it with the Vr3 that has the pin open.

The Standard Vr3 has the Buhlmann 16 Algorithm and this would give a similar profile to the Vision thou not identical.

Regards

decoweenie · 30th September 2006, 08:22

Quote: (Originally Posted by colinicky)

I am currently diving my vision...

Colin,

As you are diving the Vision, it computes the deco based on GF model.

If you use the VR-3, it uses Buhlmann + (Pyle-style) deep stops which won't match the deco profile. And yes, you could change the settings to have similar total RT, but not the profile.

If you use the Shearwater, it uses GF which you will be able to match profiles almost exactly.

Having said that, here are some random considerations based on my own experience and opinion:

The VR-3 color screen is just freaking great. The best screen of all of the computer/BT units I have ever used. I wish all of them have that.
Shearwater has a number of preset GF combinations. IMHO, they are all good and more popular combinations. But if you want to use something different (for whatever reason), it won't be possible. This is a very minor issue...
I have always like the menu scheme on the VR-3 (over the HS, for example), but the Shearwater is even better.
Size-wise, both VR-3 and Shearwater are approximately the same despite the different shapes. Bruce has upgraded the straps to be the same as the VR-3.
VR-3 uses a more common battery type, but the Shearwater battery should last a lot longer.

PCDiver · 1st October 2006, 08:01

Quote: (Originally Posted by decoweenie)

Colin,

As you are diving the Vision, it computes the deco based on GF model.

If you use the VR-3, it uses Buhlmann + (Pyle-style) deep stops which won't match the deco profile. And yes, you could change the settings to have similar total RT, but not the profile.

Absolutely correct. We returned from a wreck trip in France and we had the "use tables" on our VR3 on each dive. The deep stops on the VR3 screw up the Vision profile.

Talking about a rather expensive bottom timer.

colinicky · 1st October 2006, 08:16

I suppose it depends .I normally do deep stops anyway even on the Vision ,also depends how you set the GF on the vision .Iam actually changing mine to be more conservative than before after getting bent twice on 15/85 with no explanation !

29th September 2006, 18:56	#1 (permalink)
colinicky Custom Title Allowed! Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Mar 2005 Location: uk Posts: 676	Which vr3 version to buy ? I am currently diving my vision & using my Vytec with tables as a back up . Going to sell the Vytec & put the money towards a VR3 the question is which version should I go for that is going to be comparable with the vision ? Would love a sheerwater but their just to much money What are the differences between the versions ? I'm not worried about linking it into the vision it will be stand alone . TIA __________________ Colin I trust my rebreather completely , I just don't trust the user onwards & downwards
(Offline)

29th September 2006, 19:17	#2 (permalink)
mverick ScubaPimp Current Rebreather/s: Megalodon Other CCR Home Build Other Rebreather/s: Other CCR Home Build Join Date: Aug 2005 Posts: 541	Re: Which vr3 version to buy ? Off Ebay, VR3 monocrome oc/cc $1399 Color oc/cc $1699 VPM color oc/cc $1999 Shearwater is $1400 So, I thought the price was comparable. Not trying to sway you. Just thought they were comparable.
(Offline)

29th September 2006, 19:42	#3 (permalink)
colinicky Custom Title Allowed! Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Mar 2005 Location: uk Posts: 676	Re: Which vr3 version to buy ? Quote: (Originally Posted by mverick) Off Ebay, VR3 monocrome oc/cc $1399 Color oc/cc $1699 VPM color oc/cc $1999 Shearwater is $1400 So, I thought the price was comparable. Not trying to sway you. Just thought they were comparable. In $ yes they are but I can't find a cheap sheerwater in the uk to compare to a secondhand VR£ __________________ Colin I trust my rebreather completely , I just don't trust the user onwards & downwards
(Offline)

29th September 2006, 21:26	#4 (permalink)
*Beanie* give a man an inch....... Current Rebreather/s: Inspiration Classic Other Rebreather/s: Inspiration Vision Join Date: Jan 2005 Location: In da house! yeah baby! Posts: 3,247	Re: Which vr3 version to buy ? Well you have two options to start CC Nitrox and CC Trimix then you have colour screen VPM etc if your only diving Nitrox for the time being get a CC nitrox and upgrade later the price difference is the same as the pin to upgrade (or it was) __________________ Beanie Gallery Admin & Library Assistant. www.outlawdivers.org.uk www.beandiving.co.uk www.beanengineering.co.uk 0871 242 7808
(Offline)

29th September 2006, 21:43	#5 (permalink)
Barrie Law RebreatherWorld Sponsor Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Jun 2005 Location: Ireland Posts: 726	Re: Which vr3 version to buy ? Quote: (Originally Posted by colinicky) I am currently diving my vision & using my Vytec with tables as a back up . Going to sell the Vytec & put the money towards a VR3 the question is which version should I go for that is going to be comparable with the vision ? Would love a sheerwater but their just to much money What are the differences between the versions ? I'm not worried about linking it into the vision it will be stand alone . TIA Hi Colin, You will need the Vr3 C4 if you want to use it for CCR diving with mixed gas this would cost you new 690 stg, 1030 Euro or 1300 USD. The difference between the versions is: C1 Open Circuit Nitrox C2 Closed Circuit Air Diluent C3 Open Circuit Trimix C4 Closed Circuit Trimix Diluent. The Closed Circuit models can also be used in Open Circuit mode. The above units if fitted with a colour screen will add 179 stg, 265 euro or 335 USD to the new cost, if you buy a second hand unit it can be fitted with a colour screen at the same cost but you will have to allow postage to Delta P and back. There are several ways to connect the Vr3 to a 4th Cell and the Pin Number to open the Vr3 cost's 133 Stg, 197 Euro or 249 USD so bear that in mind if you are looking at second hand 4th Cell kit's, they do not come with the pin number unless you buy it with the Vr3 that has the pin open. The Standard Vr3 has the Buhlmann 16 Algorithm and this would give a similar profile to the Vision thou not identical. Regards __________________ Barrie Law Rebreather World Store Supplying the Rebreather World Tel:US +19548403892 Fax:US+19543333792 Tel:EU+442071930496 Fax:EU+442077606344 Mobile+353876880628 Skype:barrielaw Email: barrie@rebreatherworldstore.com
(Offline)

30th September 2006, 08:22	#6 (permalink)
decoweenie Crash Test Dummy Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Feb 2005 Location: Cairo Posts: 5,510	Re: Which vr3 version to buy ? Quote: (Originally Posted by colinicky) I am currently diving my vision... Colin, As you are diving the Vision, it computes the deco based on GF model. If you use the VR-3, it uses Buhlmann + (Pyle-style) deep stops which won't match the deco profile. And yes, you could change the settings to have similar total RT, but not the profile. If you use the Shearwater, it uses GF which you will be able to match profiles almost exactly. Having said that, here are some random considerations based on my own experience and opinion: The VR-3 color screen is just freaking great. The best screen of all of the computer/BT units I have ever used. I wish all of them have that. Shearwater has a number of preset GF combinations. IMHO, they are all good and more popular combinations. But if you want to use something different (for whatever reason), it won't be possible. This is a very minor issue... I have always like the menu scheme on the VR-3 (over the HS, for example), but the Shearwater is even better. Size-wise, both VR-3 and Shearwater are approximately the same despite the different shapes. Bruce has upgraded the straps to be the same as the VR-3. VR-3 uses a more common battery type, but the Shearwater battery should last a lot longer. __________________ "...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
(Offline)

1st October 2006, 08:01	#7 (permalink)
PCDiver Submerge Productions Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Feb 2005 Location: Belgium Posts: 962	Re: Which vr3 version to buy ? Quote: (Originally Posted by decoweenie) Colin, As you are diving the Vision, it computes the deco based on GF model. If you use the VR-3, it uses Buhlmann + (Pyle-style) deep stops which won't match the deco profile. And yes, you could change the settings to have similar total RT, but not the profile. Absolutely correct. We returned from a wreck trip in France and we had the "use tables" on our VR3 on each dive. The deep stops on the VR3 screw up the Vision profile. Talking about a rather expensive bottom timer.
(Online)

1st October 2006, 08:16	#8 (permalink)
colinicky Custom Title Allowed! Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Mar 2005 Location: uk Posts: 676	Re: Which vr3 version to buy ? I suppose it depends .I normally do deep stops anyway even on the Vision ,also depends how you set the GF on the vision .Iam actually changing mine to be more conservative than before after getting bent twice on 15/85 with no explanation ! __________________ Colin I trust my rebreather completely , I just don't trust the user onwards & downwards
(Offline)

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