Molex "Y" splitter

J. V. · 4th April 2008, 06:35

When you shear cells, think about load resistors. rEvodreams have load resistors. Others items have or have not, it depend.
When on the same cell one item have no load resistor and the other is a rEvodream, calibration needs the two in function. Or the display could be different during the dive.

silentscuba · 4th April 2008, 12:09

Quote: (Originally Posted by J. V.)

When you shear cells, think about load resistors. rEvodreams have load resistors. Others items have or have not, it depend.
When on the same cell one item have no load resistor and the other is a rEvodream, calibration needs the two in function. Or the display could be different during the dive.

Good point- You have to calibrate the Shearwater and the rEvo Dreams with both already turned on or they will not read the right PO2.

Sutty · 4th April 2008, 12:50

Quote: (Originally Posted by silentscuba)

Good point- You have to calibrate the Shearwater and the rEvo Dreams with both already turned on or they will not read the right PO2.

This makes me wonder how reliable the reading of one is if the other fails (e.g. a cable break)!!!

silentscuba · 4th April 2008, 13:43

Quote: (Originally Posted by Sutty)

This makes me wonder how reliable the reading of one is if the other fails (e.g. a cable break)!!!

That's exactly why I feel a person should have a totally isolated stand alone cell and monitor.

If a cable or circuit did fail on one cell, you would know it and then not rely on what ever is in parallel with that circuit.

On my system, I only have 2 parallel cells which are the 2 cells on my left rEvo Dream sharing 2 of the 3 cells on my Shearwater.

So, I have one unshared cell on my Shearwater and also my 4th standalone cell and monitor.

Mdemon · 4th April 2008, 15:06

Quote: (Originally Posted by ForTheFight)

What part would that be? Id love to just buy something off the shelf.

Tyler, if you dont find some let me know and Ill make you a set, I have done a couple for people.

Eliot

I think I bought mine online from Maplins. They really are cheap and easy to find since that's what the geeks use to drive fans in their PC. They won't be gold, just steel, but cheap enough that you can swap them at the first sign of corrosion.

I have used mine to connect a shearwater and an Inspo at the same time. However, this was temporary - there is no better solution than completely independent cells, even if you add resistors etc.

bgpartri · 4th April 2008, 15:17

Quote: (Originally Posted by Sutty)

This makes me wonder how reliable the reading of one is if the other fails (e.g. a cable break)!!!

The display changes by about 3-5%. It's not good, but it's not particularly serious either.

I wouldn't start a dive with anything not working, but I wouldn't panic if it happened during a dive.

Bruce

Sutty · 4th April 2008, 15:21

Quote: (Originally Posted by bgpartri)

The display changes by about 3-5%. It's not good, but it's not particularly serious either.

I wouldn't start a dive with anything not working, but I wouldn't panic if it happened during a dive.

Bruce

So reads 1.23 instead of 1.3 - that's reassuring (not that I have one), I couldn't see why it would change much.

J. V. · 4th April 2008, 17:23

Quote:

Good point- You have to calibrate the Shearwater and the rEvo Dreams with both already turned on or they will not read the right PO2.

Thank you to translate my english in english.

4th April 2008, 06:35	#11 (permalink)
J. V. Custom Title Allowed! Current Rebreather/s: rEvo Other Rebreather/s: Not Bought Yet rEvo Join Date: Mar 2006 Location: Lot & Savoie Posts: 239	Re: Molex "Y" splitter When you shear cells, think about load resistors. rEvodreams have load resistors. Others items have or have not, it depend. When on the same cell one item have no load resistor and the other is a rEvodream, calibration needs the two in function. Or the display could be different during the dive. __________________ -------------------- Jacques NPSFQQA-EDS IT # 007 (remué non agité)
(Online)

4th April 2008, 12:09	#12 (permalink)
silentscuba rEvo CCR Driver Current Rebreather/s: Classic Kiss rEvo Other Rebreather/s: Inspiration Classic rEvo Join Date: Jun 2005 Location: Mill Creek, WA USA Posts: 587	Re: Molex "Y" splitter Quote: (Originally Posted by J. V.) When you shear cells, think about load resistors. rEvodreams have load resistors. Others items have or have not, it depend. When on the same cell one item have no load resistor and the other is a rEvodream, calibration needs the two in function. Or the display could be different during the dive. Good point- You have to calibrate the Shearwater and the rEvo Dreams with both already turned on or they will not read the right PO2. __________________ Curt McNamee rEvo CCR Diver KISS CCR Diver www.silentscuba.com
(Online)

4th April 2008, 12:50	#13 (permalink)
Sutty Classic Kiss diver Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: Jun 2005 Location: Glossop, Derbyshire, UK Posts: 801	Re: Molex "Y" splitter Quote: (Originally Posted by silentscuba) Good point- You have to calibrate the Shearwater and the rEvo Dreams with both already turned on or they will not read the right PO2. This makes me wonder how reliable the reading of one is if the other fails (e.g. a cable break)!!! __________________ Never forget that life is a finite resource.
(Online)

4th April 2008, 13:43	#14 (permalink)
silentscuba rEvo CCR Driver Current Rebreather/s: Classic Kiss rEvo Other Rebreather/s: Inspiration Classic rEvo Join Date: Jun 2005 Location: Mill Creek, WA USA Posts: 587	Re: Molex "Y" splitter Quote: (Originally Posted by Sutty) This makes me wonder how reliable the reading of one is if the other fails (e.g. a cable break)!!! That's exactly why I feel a person should have a totally isolated stand alone cell and monitor. If a cable or circuit did fail on one cell, you would know it and then not rely on what ever is in parallel with that circuit. On my system, I only have 2 parallel cells which are the 2 cells on my left rEvo Dream sharing 2 of the 3 cells on my Shearwater. So, I have one unshared cell on my Shearwater and also my 4th standalone cell and monitor. __________________ Curt McNamee rEvo CCR Diver KISS CCR Diver www.silentscuba.com
(Online)

4th April 2008, 15:06	#15 (permalink)
Mdemon SiegeEngine II Current Rebreather/s: Inspiration Classic Home Build Other Rebreather/s: Inspiration Classic Home Build Join Date: Feb 2007 Location: SWUK Posts: 1,927	Re: Molex "Y" splitter Quote: (Originally Posted by ForTheFight) What part would that be? Id love to just buy something off the shelf. Tyler, if you dont find some let me know and Ill make you a set, I have done a couple for people. Eliot I think I bought mine online from Maplins. They really are cheap and easy to find since that's what the geeks use to drive fans in their PC. They won't be gold, just steel, but cheap enough that you can swap them at the first sign of corrosion. I have used mine to connect a shearwater and an Inspo at the same time. However, this was temporary - there is no better solution than completely independent cells, even if you add resistors etc. __________________ www.southwestmafia.com "small minds talk about people, Average Minds Talk About Events, GREAT MINDS TALK ABOUT IDEAS!" The WRONG Attitude will get you killed. "Once the agenda-monkeys and perfect-worlders have moved on, perhaps we can do some diving?"
(Offline)

4th April 2008, 15:17	#16 (permalink)
bgpartri Rebreather Zealot Current Rebreather/s: Megalodon Other Rebreather/s: Inspiration Classic Sport Kiss Classic Kiss Titan Join Date: Apr 2005 Location: Vancouver, Canada Posts: 414	Re: Molex "Y" splitter Quote: (Originally Posted by Sutty) This makes me wonder how reliable the reading of one is if the other fails (e.g. a cable break)!!! The display changes by about 3-5%. It's not good, but it's not particularly serious either. I wouldn't start a dive with anything not working, but I wouldn't panic if it happened during a dive. Bruce __________________ http://www.shearwaterresearch.com Good judgment comes from experience. Experience comes from bad judgment.
(Offline)

4th April 2008, 15:21	#17 (permalink)
Sutty Classic Kiss diver Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: Jun 2005 Location: Glossop, Derbyshire, UK Posts: 801	Re: Molex "Y" splitter Quote: (Originally Posted by bgpartri) The display changes by about 3-5%. It's not good, but it's not particularly serious either. I wouldn't start a dive with anything not working, but I wouldn't panic if it happened during a dive. Bruce So reads 1.23 instead of 1.3 - that's reassuring (not that I have one), I couldn't see why it would change much. __________________ Never forget that life is a finite resource.
(Online)

4th April 2008, 17:23	#18 (permalink)
J. V. Custom Title Allowed! Current Rebreather/s: rEvo Other Rebreather/s: Not Bought Yet rEvo Join Date: Mar 2006 Location: Lot & Savoie Posts: 239	Re: Molex "Y" splitter Quote: Good point- You have to calibrate the Shearwater and the rEvo Dreams with both already turned on or they will not read the right PO2. Thank you to translate my english in english. __________________ -------------------- Jacques NPSFQQA-EDS IT # 007 (remué non agité)
(Online)

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