VRx 3 cell PPO2 monitoring

asfalt · 4th January 2013, 13:22

Hello, I have a question about VRx and 3 cell PPO2 monitoring.
I bought an used Aquatec Voyager Rebreather some time ago. It has a box with 3 O2 cells wired into the Fisher conector. The previous owner connected it to the Shearwater dive computer. I have VR Technology VRx (3 cell monitoring is activated). The problem is, VRx shows just 1 PPO2. I think that problem is in wiring 3 cells to Fisher conector. Does anyone know how are 3 cells in Fisher conector wired (by VRx, of course)?
Any advice welcome. Thank you
Asfalt

divetheworld · 6th January 2013, 08:14

The VRx is not automatically a 3 cell computer. You may have a 1 cell computer. The board inside is different for each.
You must first make sure you have a 3 cell VRx.
If your sure that the computer is a 3 cell version then DO NOT use a Shearwater cable with the VRx. We were involved with the design specification on the cell interface for that computer and the cables are not compatible.
You must use a different cable.

jpalecek · 6th January 2013, 18:44

maybe it will help : Cable and Connector Help

narked at 90 · 6th January 2013, 20:34

Quote: (Originally Posted by jpalecek)

maybe it will help : Cable and Connector Help

this page will not help you, brent is correct the vrx cables are differant from the shearwater type cables, not only are they wired differantly they have differant isolation electronics fitted

kind regards john routley

Philippe GERIN · 7th January 2013, 07:47

Asfalt,
Best is to get the correct VRx cable from narked@90. They know what they're talking about and they will give you great service. Last but not least you won't have to second guess your readings.
Best
Philippe

asfalt · 8th January 2013, 07:31

Thank you for all answer. My VRx is realy 3 cells monitoring capable and this function is activated (see a pic).
My problem isn't just connect 3 cells to VRx - I wanna connect all 3 cells to the VRx computer and simultaneously to the VR Technology 3 cells monitoring unit. I wanna use 3 cells monitoring unit as a backup... You can see everything, what is available to me, at a second picture.
Thanks
Asfalt

4th January 2013, 13:22	#1 (permalink)
asfalt RBW Member Join Date: Feb 2011 Posts: 2	VRx 3 cell PPO2 monitoring Hello, I have a question about VRx and 3 cell PPO2 monitoring. I bought an used Aquatec Voyager Rebreather some time ago. It has a box with 3 O2 cells wired into the Fisher conector. The previous owner connected it to the Shearwater dive computer. I have VR Technology VRx (3 cell monitoring is activated). The problem is, VRx shows just 1 PPO2. I think that problem is in wiring 3 cells to Fisher conector. Does anyone know how are 3 cells in Fisher conector wired (by VRx, of course)? Any advice welcome. Thank you Asfalt
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6th January 2013, 08:14	#2 (permalink)
divetheworld Brent - Narked at 90 Deep Pursuit or a Camelion and 11 others inc. a UT-240 Join Date: Mar 2005 Location: Prescot, England Posts: 2,424	The VRx is not automatically a 3 cell computer. You may have a 1 cell computer. The board inside is different for each. You must first make sure you have a 3 cell VRx. If your sure that the computer is a 3 cell version then DO NOT use a Shearwater cable with the VRx. We were involved with the design specification on the cell interface for that computer and the cables are not compatible. You must use a different cable. __________________ Copying skips understanding. Understanding is how you grow. You have to understand why something works or why something is how it is. When you copy it, you miss that. *WWW.NARKEDAT90.COM* www.puwer.co.uk PUWER and Machinery CE Marking www.ce-eu.com
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6th January 2013, 18:44	#3 (permalink)
jpalecek RBW Member Home built Hammer Head Join Date: Jul 2007 Location: Czech Republic Posts: 8	Re: VRx 3 cell PPO2 monitoring maybe it will help : Cable and Connector Help
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6th January 2013, 20:34	#4 (permalink)
narked at 90 John Routley Join Date: Feb 2005 Location: middlands uk Posts: 1,451	Re: VRx 3 cell PPO2 monitoring Quote: (Originally Posted by jpalecek) maybe it will help : Cable and Connector Help this page will not help you, brent is correct the vrx cables are differant from the shearwater type cables, not only are they wired differantly they have differant isolation electronics fitted kind regards john routley __________________ *WWW.NARKEDAT90.COM* you know...life is not about waiting for the storm to pass, Its about learning to dance in the rain.. Supporting Shearwater Research Products in Europe
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7th January 2013, 07:47	#5 (permalink)
Philippe GERIN ccr apprentice Classic Kiss Meg 2.7/SW, Copis Meg, SK Join Date: May 2005 Location: Orléans, France Posts: 1,157	Re: VRx 3 cell PPO2 monitoring Asfalt, Best is to get the correct VRx cable from narked@90. They know what they're talking about and they will give you great service. Last but not least you won't have to second guess your readings. Best Philippe
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