Dive Rite cells on other CCR

maischan · 9th March 2007, 06:09

Can we use the Dive Rite R-22DR with the standard 3-pin Molex connector ( equivalent to the Teledyne R-22D provoided by DR Express) on a Meg.
What "equivalent to R22D" mean ...?
Is somebody already using these cells on a Meg and and how was their performances?

Gibbon · 9th March 2007, 06:49

same product different label. we have used them in Megs without issue, but have no comment to make about performance, I expect them to be as bad as other Teledyne cells.

***ScubaDadMiami*** · 9th March 2007, 18:21

I believe that the newer ones are not Teledyne but AI. So, I guess it depends on which ones you have.

n2diving · 9th March 2007, 21:57

We originally sold the R-22DR's as an OEM version R-22D from Teledyne, the only difference was the color of the label.

We had some very annoying problems with the Teledynes (widely discussed elsewhere). Eventually we first sampled and tested the AI's and then switched to the PSR-11-39-MD from AI... only difference on our version again being the color of the label. We are now shipping the AI PSR-11-39-MD under our part number R-22DR, and have been over six months.

The main difference is we see far fewer problems with the black AI's than we did with the white Teledynes.

The R-22DR is a Dive Rite Express part number. Dive Rite is currently shipping exactly the same sensor with the O2ptima FX. The Dive Rite Express R-22DR is a plug compatible replacement; any place you see a Teledyne R-22D or an AI PSR-11-39-MD spec'd. I won't get into the debate on the R-22BUD, you either agree with APD or you don't on that one.

maischan · 10th March 2007, 01:34

thanks for your comments and details.

**vidodivr** · 10th March 2007, 05:03

I use the R-22DR sensors in my Classic KISS and they work just dandy.

OxyCheq · 14th July 2007, 12:00

Quote: (Originally Posted by n2diving)

We originally sold the R-22DR's as an OEM version R-22D from Teledyne, the only difference was the color of the label.

We had some very annoying problems with the Teledynes (widely discussed elsewhere). Eventually we first sampled and tested the AI's and then switched to the PSR-11-39-MD from AI... only difference on our version again being the color of the label. We are now shipping the AI PSR-11-39-MD under our part number R-22DR, and have been over six months.

The main difference is we see far fewer problems with the black AI's than we did with the white Teledynes.

The R-22DR is a Dive Rite Express part number. Dive Rite is currently shipping exactly the same sensor with the O2ptima FX. The Dive Rite Express R-22DR is a plug compatible replacement; any place you see a Teledyne R-22D or an AI PSR-11-39-MD spec'd. I won't get into the debate on the R-22BUD, you either agree with APD or you don't on that one.

I believe DR Express was originally selling the Teledyne sensors but were told you had to go through their distributor instead of getting them direct.

I believe DR Express made the decsion to go with AI after they were notified of that.

Dive Rite was buying direct at that time. During all of 2006 OxyCheq sold the sensors to Dive Rite and I was only informed of one bad cell during that time.

If you had so many problems with the Teledyne sensors, how many did you send back? If you are not sure, I could call Teledyne next week and ask them to do a search on the amount of sensors that were sold by DR Express that actually were sent back under warranty.

So, please provide some actual numbers.

I should note that Teledyne has seen some AI (not Teledyne) sensors go back to them for warranty. Obviously, they are not going to warranty a sensor made by another manufacturer.

Best regards,

Patrick Duffy
OxyCheq

Muzz · 14th July 2007, 22:21

I'm not going to get into the last few posts. But I and some buddies have had problems with the sensor not holding pressure. I really don't know how to put it, but in simple terms you can blow into one side and it comes out the other. Has anyone had the same problem? Or make a tester for it?

OxyCheq · 14th July 2007, 22:59

Quote: (Originally Posted by Muzz)

I'm not going to get into the last few posts. But I and some buddies have had problems with the sensor not holding pressure. I really don't know how to put it, but in simple terms you can blow into one side and it comes out the other. Has anyone had the same problem? Or make a tester for it?

Steve,

I must admit, I have taken sensors apart, have assembled them, but have never had a desire to blow through one and would not know what that would even achieve.

If you take the sensor apart you will find an outer shell (the housing of the sensor sub assembly), a sensor board (with resistors, thermister and connector), the sensor sub assembly (the guts of the sensor) and the hydrophobic membrane.

The sub assembly goes into the sensor body (that is the area where the molecules are being read and mv is being created), the board is soldered to the sub assembly and adhered to the outer shell and the hydrophobic membrane is placed through the threaded face of the outer shell.

The sensor sub assembly is held in the outer shell by a piece of double sided tape.

So, when you were blowing through the sensor, you were blowing through the membrane, past the double sided tape, the gas was going through the space between the sub assembly and the inner wall of the shell and out the back end past the board.

How is this related to holding pressure?

Is that your definition of holding pressure?

What did you think that "blow test" was achieving?

I do not believe the "blow test" you did had anything to do with anything.

If the tape was completely sealed, it is possible that you could damage the sensor by blowing too hard through it.

Best regards,

Patrick Duffy
OxyCheq
http://oxycheq.com

**wedivebc** · 15th July 2007, 01:13

Quote: (Originally Posted by OxyCheq)

Steve,

I must admit, I have taken sensors apart, have assembled them, but have never had a desire to blow through one and would not know what that would even achieve.

If you take the sensor apart you will find an outer shell (the housing of the sensor sub assembly), a sensor board (with resistors, thermister and connector), the sensor sub assembly (the guts of the sensor) and the hydrophobic membrane.

The sub assembly goes into the sensor body (that is the area where the molecules are being read and mv is being created), the board is soldered to the sub assembly and adhered to the outer shell and the hydrophobic membrane is placed through the threaded face of the outer shell.

The sensor sub assembly is held in the outer shell by a piece of double sided tape.

So, when you were blowing through the sensor, you were blowing through the membrane, past the double sided tape, the gas was going through the space between the sub assembly and the inner wall of the shell and out the back end past the board.

How is this related to holding pressure?

Is that your definition of holding pressure?

What did you think that "blow test" was achieving?

I do not believe the "blow test" you did had anything to do with anything.

If the tape was completely sealed, it is possible that you could damage the sensor by blowing too hard through it.

Best regards,

Patrick Duffy
OxyCheq
http://oxycheq.com

Patrick, you may or may not be aware that the sensors in a meg form the barrier between the unscrubbed and scrubbed gas. The back of the sensors are exposed to unscrubbed gas and a leak through the sensors can cause a scrubber bypass. A positive and negative pressure check is part of a meg predive to check the integrity of the sensor carrier (and sensors)
I spoke with a tech at teledyne and he said you could not generate enough pressure with your lungs to damage a sensor so the test should not harm sensors.

9th March 2007, 06:09	#1 (permalink)
maischan New Member Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Mar 2005 Location: Singapore Posts: 32	Dive Rite cells on other CCR Can we use the Dive Rite R-22DR with the standard 3-pin Molex connector ( equivalent to the Teledyne R-22D provoided by DR Express) on a Meg. What "equivalent to R22D" mean ...? Is somebody already using these cells on a Meg and and how was their performances?
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9th March 2007, 06:49	#2 (permalink)
Gibbon Southern Monkey Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Aug 2005 Location: East Devon Posts: 226	Re: Dive Rite cells on other CCR same product different label. we have used them in Megs without issue, but have no comment to make about performance, I expect them to be as bad as other Teledyne cells.
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9th March 2007, 18:21	#3 (permalink)
*ScubaDadMiami* Moderator Current Rebreather/s: Optima Other Rebreather/s: Join Date: Sep 2005 Location: Florida, USA Posts: 2,075	Re: Dive Rite cells on other CCR I believe that the newer ones are not Teledyne but AI. So, I guess it depends on which ones you have. __________________ Howard Packer IANTD CCR Instructor Miami Beach, Florida CCRDiveTraining.com
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9th March 2007, 21:57	#4 (permalink)
n2diving Custom Title Allowed! Current Rebreather/s: Optima Other CCR Other Rebreather/s: Inspiration Classic Other CCR Join Date: Feb 2005 Location: Florida, USA Posts: 271	Re: Dive Rite cells on other CCR We originally sold the R-22DR's as an OEM version R-22D from Teledyne, the only difference was the color of the label. We had some very annoying problems with the Teledynes (widely discussed elsewhere). Eventually we first sampled and tested the AI's and then switched to the PSR-11-39-MD from AI... only difference on our version again being the color of the label. We are now shipping the AI PSR-11-39-MD under our part number R-22DR, and have been over six months. The main difference is we see far fewer problems with the black AI's than we did with the white Teledynes. The R-22DR is a Dive Rite Express part number. Dive Rite is currently shipping exactly the same sensor with the O2ptima FX. The Dive Rite Express R-22DR is a plug compatible replacement; any place you see a Teledyne R-22D or an AI PSR-11-39-MD spec'd. I won't get into the debate on the R-22BUD, you either agree with APD or you don't on that one. Last edited by n2diving : 9th March 2007 at 22:10.
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10th March 2007, 01:34	#5 (permalink)
maischan New Member Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Mar 2005 Location: Singapore Posts: 32	Re: Dive Rite cells on other CCR thanks for your comments and details.
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10th March 2007, 05:03	#6 (permalink)
vidodivr swims in fishes toilets Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: Nov 2005 Location: Florida/Michigan Posts: 492	Re: Dive Rite cells on other CCR I use the R-22DR sensors in my Classic KISS and they work just dandy. __________________ Have a good one, Rob LaLonde CK #087 Narked@90 frame URM
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14th July 2007, 12:00	#7 (permalink)
OxyCheq New Member Current Rebreather/s: Inspiration Classic Sport Kiss MK 15.X Other CCR Dolphin Other Rebreather/s: Other CCR Dolphin Join Date: Jan 2006 Location: Marianna FL USA Posts: 17	Re: Dive Rite cells on other CCR Quote: (Originally Posted by n2diving) We originally sold the R-22DR's as an OEM version R-22D from Teledyne, the only difference was the color of the label. We had some very annoying problems with the Teledynes (widely discussed elsewhere). Eventually we first sampled and tested the AI's and then switched to the PSR-11-39-MD from AI... only difference on our version again being the color of the label. We are now shipping the AI PSR-11-39-MD under our part number R-22DR, and have been over six months. The main difference is we see far fewer problems with the black AI's than we did with the white Teledynes. The R-22DR is a Dive Rite Express part number. Dive Rite is currently shipping exactly the same sensor with the O2ptima FX. The Dive Rite Express R-22DR is a plug compatible replacement; any place you see a Teledyne R-22D or an AI PSR-11-39-MD spec'd. I won't get into the debate on the R-22BUD, you either agree with APD or you don't on that one. I believe DR Express was originally selling the Teledyne sensors but were told you had to go through their distributor instead of getting them direct. I believe DR Express made the decsion to go with AI after they were notified of that. Dive Rite was buying direct at that time. During all of 2006 OxyCheq sold the sensors to Dive Rite and I was only informed of one bad cell during that time. If you had so many problems with the Teledyne sensors, how many did you send back? If you are not sure, I could call Teledyne next week and ask them to do a search on the amount of sensors that were sold by DR Express that actually were sent back under warranty. So, please provide some actual numbers. I should note that Teledyne has seen some AI (not Teledyne) sensors go back to them for warranty. Obviously, they are not going to warranty a sensor made by another manufacturer. Best regards, Patrick Duffy OxyCheq __________________ OxyCheq ... the diver's source for analytical instruments, wings and other tech diving equipment "Just because someone takes a dump once a day does not qualify them as a proctologist." P. Duffy
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14th July 2007, 22:21	#8 (permalink)
Muzz New Member Current Rebreather/s: Megalodon Optima Other Rebreather/s: Join Date: Mar 2005 Location: Pompano Beach FL Posts: 129	Re: Dive Rite cells on other CCR I'm not going to get into the last few posts. But I and some buddies have had problems with the sensor not holding pressure. I really don't know how to put it, but in simple terms you can blow into one side and it comes out the other. Has anyone had the same problem? Or make a tester for it?
(Offline)

14th July 2007, 22:59	#9 (permalink)
OxyCheq New Member Current Rebreather/s: Inspiration Classic Sport Kiss MK 15.X Other CCR Dolphin Other Rebreather/s: Other CCR Dolphin Join Date: Jan 2006 Location: Marianna FL USA Posts: 17	Re: Dive Rite cells on other CCR Quote: (Originally Posted by Muzz) I'm not going to get into the last few posts. But I and some buddies have had problems with the sensor not holding pressure. I really don't know how to put it, but in simple terms you can blow into one side and it comes out the other. Has anyone had the same problem? Or make a tester for it? Steve, I must admit, I have taken sensors apart, have assembled them, but have never had a desire to blow through one and would not know what that would even achieve. If you take the sensor apart you will find an outer shell (the housing of the sensor sub assembly), a sensor board (with resistors, thermister and connector), the sensor sub assembly (the guts of the sensor) and the hydrophobic membrane. The sub assembly goes into the sensor body (that is the area where the molecules are being read and mv is being created), the board is soldered to the sub assembly and adhered to the outer shell and the hydrophobic membrane is placed through the threaded face of the outer shell. The sensor sub assembly is held in the outer shell by a piece of double sided tape. So, when you were blowing through the sensor, you were blowing through the membrane, past the double sided tape, the gas was going through the space between the sub assembly and the inner wall of the shell and out the back end past the board. How is this related to holding pressure? Is that your definition of holding pressure? What did you think that "blow test" was achieving? I do not believe the "blow test" you did had anything to do with anything. If the tape was completely sealed, it is possible that you could damage the sensor by blowing too hard through it. Best regards, Patrick Duffy OxyCheq http://oxycheq.com __________________ OxyCheq ... the diver's source for analytical instruments, wings and other tech diving equipment "Just because someone takes a dump once a day does not qualify them as a proctologist." P. Duffy Last edited by OxyCheq : 14th July 2007 at 23:03.
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15th July 2007, 01:13	#10 (permalink)
wedivebc FIGJAM Current Rebreather/s: Megalodon Other CCR Other Rebreather/s: Not Bought Yet Inspiration Classic Sport Kiss Other CCR Join Date: Feb 2005 Location: Vancouver Island BC Canada Posts: 1,411	Re: Dive Rite cells on other CCR Quote: (Originally Posted by OxyCheq) Steve, I must admit, I have taken sensors apart, have assembled them, but have never had a desire to blow through one and would not know what that would even achieve. If you take the sensor apart you will find an outer shell (the housing of the sensor sub assembly), a sensor board (with resistors, thermister and connector), the sensor sub assembly (the guts of the sensor) and the hydrophobic membrane. The sub assembly goes into the sensor body (that is the area where the molecules are being read and mv is being created), the board is soldered to the sub assembly and adhered to the outer shell and the hydrophobic membrane is placed through the threaded face of the outer shell. The sensor sub assembly is held in the outer shell by a piece of double sided tape. So, when you were blowing through the sensor, you were blowing through the membrane, past the double sided tape, the gas was going through the space between the sub assembly and the inner wall of the shell and out the back end past the board. How is this related to holding pressure? Is that your definition of holding pressure? What did you think that "blow test" was achieving? I do not believe the "blow test" you did had anything to do with anything. If the tape was completely sealed, it is possible that you could damage the sensor by blowing too hard through it. Best regards, Patrick Duffy OxyCheq http://oxycheq.com Patrick, you may or may not be aware that the sensors in a meg form the barrier between the unscrubbed and scrubbed gas. The back of the sensors are exposed to unscrubbed gas and a leak through the sensors can cause a scrubber bypass. A positive and negative pressure check is part of a meg predive to check the integrity of the sensor carrier (and sensors) I spoke with a tech at teledyne and he said you could not generate enough pressure with your lungs to damage a sensor so the test should not harm sensors. __________________ Cheers, Dave.... Man is the only animal burdened with the knowledge he will eventually die
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