Sensor fitting?

johan carlsson · 29th May 2008, 12:14

Is this sensor fitted into the Pelagian ore is it to big?
The text on the page say that it is equivalent to the Teledyne R-22D that is posted in the manual to be the one in the unit.

Oxygen Sensors for Diving

R22_DR_1-175.jpg

I know you have to mod. It but is it fitted after modifications?

Thank's

Stephane · 29th May 2008, 12:19

Hi Johan,

This sensor is made by Analytical Industries, and it is smaller than the Teledyne R22D sensor. But the thread at the end is the same.
So I guess it will fit the Pelagian but you'd better ask the manufacturer.

johan carlsson · 29th May 2008, 12:29

Quote: (Originally Posted by Stephane)

Hi Johan,

This sensor is made by Analytical Industries, and it is smaller than the Teledyne R22D sensor. But the thread at the end is the same.
So I guess it will fit the Pelagian but you'd better ask the manufacturer.

Thank's Stephane!

I needed a fast answer an got it here! I did the same assesment as you..

But i'm also asking the manufacturer through this site.. i know he is here and will probebley answer soon

.

Thank's

Mr_Pyro · 29th May 2008, 22:15

I'm not sure, but until Andy shows up:

The head i machined with very tight tolerances and you pretty much have to squezze the sensors into their positions/holders.
If this sensor is thinner than the original, I don't think that it will fit very good.
I'll gues that you can always use scotch tape to increase the diameter to make it fit, not a very clean solution thoo.

Do you have any dimensions of this sensor?
Let me know and I'll compare it with the avialable space in the head of my unit.

Good luck

/Johan Fredin

jkaterenchuk · 29th May 2008, 22:26

Guess you need to hope that Teledyne does not change the dimensions of its sensor cases in the future. I do no think a outcry from pelagian owners will cause them to rethink a change.

If they did and the new design did not fit would a new head need to be purchased? I think this would be a good thing to know if looking at the pros and cons of this unit over others.

John

Mr_Pyro · 29th May 2008, 22:40

Quote: (Originally Posted by jkaterenchuk)

Guess you need to hope that Teledyne does not change the dimensions of its sensor cases in the future. I do no think a outcry from pelagian owners will cause them to rethink a change.

If they did and the new design did not fit would a new head need to be purchased? I think this would be a good thing to know if looking at the pros and cons of this unit over others.

John

I don't think that it would be a major issue.. One can always grind/mill down the material that holds the cells and install an adapter for the new cell design.

But then again this is better answerd by Andy..

Cheers
/Johan Fredin

rogeringebo · 29th May 2008, 23:22

Hi guys!
Until Andy log in.......
The thread on the cell is cut off anyway for instant validation purposes.
The cell is pinned in place laying down.
If the cell is smaller It should be pretty straight forward to just put something
around the body. Have no impact of performance what so ever.

Cheers
Roger

Stephane · 30th May 2008, 05:52

Johan,

Use some inner tube from a bicycle wheel. It works like a charm.

johan carlsson · 30th May 2008, 07:01

Quote: (Originally Posted by Stephane)

Johan,

Use some inner tube from a bicycle wheel. It works like a charm.

Will do, have orderd tre of this cells now so we will soon know if they fit...

I will be back..

Tank's

Rebreatherlab · 1st June 2008, 07:48

Quote: (Originally Posted by johan carlsson)

Is this sensor fitted into the Pelagian ore is it to big?
The text on the page say that it is equivalent to the Teledyne R-22D that is posted in the manual to be the one in the unit.

Oxygen Sensors for Diving

Attachment 9628

I know you have to mod. It but is it fitted after modifications?

Thank's

The cell sockets in the head are made for the Teledynes as they are fatter than the AI's. Personally I prefer the Teledynes, but this is the same as saying I always go for number 7 at the lotteries! If you use the AI's then you need some elecric tape to build up the fattness. If you dont, then the cells may move a bit. This means the angle of DIL injected is not perfect. You could still do Instant Cell Validation, but it will be a bit less "instant"!

The important thing is to test the cells for liniarity before you chop off the thread. I doubt you can get a refund for a crappy cell if you return it molested as the manufacturer will say "It is not liniar as you cut the threads of, dude!"

Andy

29th May 2008, 12:14	#1 (permalink)
johan carlsson New Member Current Rebreather/s: Pelagian Other CCR Azimuth Other Rebreather/s: Not Bought Yet Pelagian Other CCR Azimuth Join Date: Dec 2005 Location: Sweden / Nynashamn Posts: 44	Sensor fitting? Is this sensor fitted into the Pelagian ore is it to big? The text on the page say that it is equivalent to the Teledyne R-22D that is posted in the manual to be the one in the unit. Oxygen Sensors for Diving R22_DR_1-175.jpg I know you have to mod. It but is it fitted after modifications? Thank's __________________ I'm done playing, geti'ng me a Pelagian..Payed and ordered Better to rule in hell than to serve in heven !! http://hem.bredband.net/gixxer750 http://www.dykarna.nu/?userId=3603 Last edited by johan carlsson : 29th May 2008 at 12:16.
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29th May 2008, 12:19	#2 (permalink)
Stephane Hey! Ho! Let's go! Current Rebreather/s: rEvo Other Rebreather/s: rEvo Join Date: Nov 2005 Location: Nantes - France Posts: 734	Re: Sensor fitting? Hi Johan, This sensor is made by Analytical Industries, and it is smaller than the Teledyne R22D sensor. But the thread at the end is the same. So I guess it will fit the Pelagian but you'd better ask the manufacturer. __________________ Stéphane Hammer-rEvo powered!
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29th May 2008, 12:29	#3 (permalink)
johan carlsson New Member Current Rebreather/s: Pelagian Other CCR Azimuth Other Rebreather/s: Not Bought Yet Pelagian Other CCR Azimuth Join Date: Dec 2005 Location: Sweden / Nynashamn Posts: 44	Re: Sensor fitting? Quote: (Originally Posted by Stephane) Hi Johan, This sensor is made by Analytical Industries, and it is smaller than the Teledyne R22D sensor. But the thread at the end is the same. So I guess it will fit the Pelagian but you'd better ask the manufacturer. Thank's Stephane! I needed a fast answer an got it here! I did the same assesment as you.. But i'm also asking the manufacturer through this site.. i know he is here and will probebley answer soon . Thank's __________________ I'm done playing, geti'ng me a Pelagian..Payed and ordered Better to rule in hell than to serve in heven !! http://hem.bredband.net/gixxer750 http://www.dykarna.nu/?userId=3603
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29th May 2008, 22:15	#4 (permalink)
Mr_Pyro New Member Current Rebreather/s: Pelagian Other Rebreather/s: Pelagian Join Date: Jul 2007 Location: Stockholm Posts: 39	Re: Sensor fitting? I'm not sure, but until Andy shows up: The head i machined with very tight tolerances and you pretty much have to squezze the sensors into their positions/holders. If this sensor is thinner than the original, I don't think that it will fit very good. I'll gues that you can always use scotch tape to increase the diameter to make it fit, not a very clean solution thoo. Do you have any dimensions of this sensor? Let me know and I'll compare it with the avialable space in the head of my unit. Good luck /Johan Fredin Last edited by Mr_Pyro : 29th May 2008 at 22:18.
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29th May 2008, 22:26	#5 (permalink)
jkaterenchuk . Current Rebreather/s: Inspiration Classic Megalodon Classic Kiss Other Rebreather/s: Join Date: May 2006 Location: Lititz, PA Posts: 724	Re: Sensor fitting? Guess you need to hope that Teledyne does not change the dimensions of its sensor cases in the future. I do no think a outcry from pelagian owners will cause them to rethink a change. If they did and the new design did not fit would a new head need to be purchased? I think this would be a good thing to know if looking at the pros and cons of this unit over others. John
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29th May 2008, 22:40	#6 (permalink)
Mr_Pyro New Member Current Rebreather/s: Pelagian Other Rebreather/s: Pelagian Join Date: Jul 2007 Location: Stockholm Posts: 39	Re: Sensor fitting? Quote: (Originally Posted by jkaterenchuk) Guess you need to hope that Teledyne does not change the dimensions of its sensor cases in the future. I do no think a outcry from pelagian owners will cause them to rethink a change. If they did and the new design did not fit would a new head need to be purchased? I think this would be a good thing to know if looking at the pros and cons of this unit over others. John I don't think that it would be a major issue.. One can always grind/mill down the material that holds the cells and install an adapter for the new cell design. But then again this is better answerd by Andy.. Cheers /Johan Fredin
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30th May 2008, 05:52	#8 (permalink)
Stephane Hey! Ho! Let's go! Current Rebreather/s: rEvo Other Rebreather/s: rEvo Join Date: Nov 2005 Location: Nantes - France Posts: 734	Re: Sensor fitting? Johan, Use some inner tube from a bicycle wheel. It works like a charm. __________________ Stéphane Hammer-rEvo powered!
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30th May 2008, 07:01	#9 (permalink)
johan carlsson New Member Current Rebreather/s: Pelagian Other CCR Azimuth Other Rebreather/s: Not Bought Yet Pelagian Other CCR Azimuth Join Date: Dec 2005 Location: Sweden / Nynashamn Posts: 44	Re: Sensor fitting? Quote: (Originally Posted by Stephane) Johan, Use some inner tube from a bicycle wheel. It works like a charm. Will do, have orderd tre of this cells now so we will soon know if they fit... I will be back.. Tank's __________________ I'm done playing, geti'ng me a Pelagian..Payed and ordered Better to rule in hell than to serve in heven !! http://hem.bredband.net/gixxer750 http://www.dykarna.nu/?userId=3603
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1st June 2008, 07:48	#10 (permalink)
Rebreatherlab RebreatherWorld Sponsor Current Rebreather/s: Pelagian Other Rebreather/s: Not Bought Yet Classic Kiss Pelagian Join Date: Sep 2005 Location: Thailand Posts: 194	Re: Sensor fitting? Quote: (Originally Posted by johan carlsson) Is this sensor fitted into the Pelagian ore is it to big? The text on the page say that it is equivalent to the Teledyne R-22D that is posted in the manual to be the one in the unit. Oxygen Sensors for Diving Attachment 9628 I know you have to mod. It but is it fitted after modifications? Thank's The cell sockets in the head are made for the Teledynes as they are fatter than the AI's. Personally I prefer the Teledynes, but this is the same as saying I always go for number 7 at the lotteries! If you use the AI's then you need some elecric tape to build up the fattness. If you dont, then the cells may move a bit. This means the angle of DIL injected is not perfect. You could still do Instant Cell Validation, but it will be a bit less "instant"! The important thing is to test the cells for liniarity before you chop off the thread. I doubt you can get a refund for a crappy cell if you return it molested as the manufacturer will say "It is not liniar as you cut the threads of, dude!" Andy __________________ www.rebreatherlab.com
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