Coaxial Oxygen sensors

koputai · 29th May 2008, 02:00

Hi Folks,
What are peoples thoughts on the O2 sensors with the coaxial connectors?
Have they proven more reliable than the old Molex?
Are they harder/easier to use?

Thanks,
Jason.

Drmike · 29th May 2008, 06:57

Quote: (Originally Posted by koputai)

Hi Folks,
What are peoples thoughts on the O2 sensors with the coaxial connectors?
Have they proven more reliable than the old Molex?
Are they harder/easier to use?

Thanks,
Jason.

im using them in boris and my homebuilds

yes much more reliable - especially if you get them wet or flood your unit - just whipe clean with a cloth.

Ive had 4 full caustic floods on boris and maybe teh same number on homebuilds and the coaxial cables are still as good as new as they are potted you just wipe them over with a rag.

I wouldnt buy a unit that uses molex again, even IF the wire ends are varnished that doesnt seem to stop corrosion - just ask the classic owners

Andy Del · 30th May 2008, 04:29

Time to experiement with fitting co-ax to a Subsea setup?

I'll bring the beer...

DivnSapper · 30th May 2008, 08:52

Any perfered sources for parts for completing a conversion of a molex system to a coax based system?

Thanks,
Ryan

koputai · 30th May 2008, 13:44

Quote: (Originally Posted by Andy Del)

Time to experiement with fitting co-ax to a Subsea setup?

I'll bring the beer...

Hmm, I had been thinking about that, but I can't imagine most KISSers would want to go for the co-ax sensors due to cost and availability issues. It's easy enough to do though.
The reason I'm asking though, is that I'm currently (like forever) doing a major rebuild on the Mk15 and am considering which sensors and connectors to go for. I'm totally sick of the crappiness of the Winchester connectors that the R-10 Mk15 sensors use, they are always intermittant, and suffer from moisture ingress quite a lot. Probably the crappiest point in the whole Mk15 system (along with lots of other crappiest points, but hey, no system is perfect, and it's still the worlds best rebreather!). I'm also wary of the Molex's as they have lots of issues as well. If the coax connectored R-22's are uber-reliable, I'll go for those.

Cheers,
Jason.

Drmike · 30th May 2008, 13:49

Quote: (Originally Posted by DivnSapper)

Any perfered sources for parts for completing a conversion of a molex system to a coax based system?

Thanks,
Ryan

bought my homebuild ones from RS and soldered/potted them. these are longer than the ones used in inspo/evo and prob wont fit in those units

Drmike · 30th May 2008, 13:52

Quote: (Originally Posted by koputai)

Hmm, I had been thinking about that, but I can't imagine most KISSers would want to go for the co-ax sensors due to cost and availability issues. It's easy enough to do though.
The reason I'm asking though, is that I'm currently (like forever) doing a major rebuild on the Mk15 and am considering which sensors and connectors to go for. I'm totally sick of the crappiness of the Winchester connectors that the R-10 Mk15 sensors use, they are always intermittant, and suffer from moisture ingress quite a lot. Probably the crappiest point in the whole Mk15 system (along with lots of other crappiest points, but hey, no system is perfect, and it's still the worlds best rebreather!). I'm also wary of the Molex's as they have lots of issues as well. If the coax connectored R-22's are uber-reliable, I'll go for those.

Cheers,
Jason.

My mk155.5 sensor wires are soldered directly to the sensor wires with a bit of heatshrink - best mod I ever did and totally uber-reliable

koputai · 31st May 2008, 14:21

Quote: (Originally Posted by Drmike)

My mk155.5 sensor wires are soldered directly to the sensor wires with a bit of heatshrink - best mod I ever did and totally uber-reliable

Pretty bulletproof there Mike! Not really user friendly though hey?

Cheers,
Jason.

julieann charters · 2nd June 2008, 01:08

yep coax connectors should be standard issue for QC cells as molex are total shite.
i bought pre-wired coax 90degree bend connectors from radio spares
seem to recall 4 prewired ends with 500mm wire tails worked out at around £10 not worth pissing about trying to solder em yourself as they are tiny.
quick cheap conversion on most units.
pop off the top disc and fill with epoxy glue to make em sealed against conductor corrosion .

elfyn

Drmike · 2nd June 2008, 04:14

Quote: (Originally Posted by koputai)

Pretty bulletproof there Mike! Not really user friendly though hey?

Cheers,
Jason.

no but i only have to de-solder them maybe once a year (a small soldering iron is handy thing to keep in ones dive tool kit)

29th May 2008, 02:00	#1 (permalink)
koputai Subsea Systems Current Rebreather/s: MK 15.X Other CCR Other SCR Other Rebreather/s: Not Bought Yet Other CCR Other SCR Join Date: Jul 2005 Location: Sydney, Australia Posts: 326	Coaxial Oxygen sensors Hi Folks, What are peoples thoughts on the O2 sensors with the coaxial connectors? Have they proven more reliable than the old Molex? Are they harder/easier to use? Thanks, Jason.
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29th May 2008, 06:57	#2 (permalink)
Drmike Custom Title Allowed! Current Rebreather/s: MK 15.X Ouroboros Other CCR Home Build Other Rebreather/s: Inspiration Classic Other CCR Home Build Join Date: Feb 2005 Posts: 3,157	Re: Coaxial Oxygen sensors Quote: (Originally Posted by koputai) Hi Folks, What are peoples thoughts on the O2 sensors with the coaxial connectors? Have they proven more reliable than the old Molex? Are they harder/easier to use? Thanks, Jason. im using them in boris and my homebuilds yes much more reliable - especially if you get them wet or flood your unit - just whipe clean with a cloth. Ive had 4 full caustic floods on boris and maybe teh same number on homebuilds and the coaxial cables are still as good as new as they are potted you just wipe them over with a rag. I wouldnt buy a unit that uses molex again, even IF the wire ends are varnished that doesnt seem to stop corrosion - just ask the classic owners __________________ Cave diving is a sport Wreck diving is a sport Diving in general is a sport 'Rebreather diving' is not a sport its the delusional obsession with a highly dangerous and often inappropriate piece of equipment Last edited by Drmike : 29th May 2008 at 07:01.
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30th May 2008, 04:29	#3 (permalink)
Andy Del Classic KISSer Current Rebreather/s: Sport Kiss Classic Kiss Other Rebreather/s: Join Date: Feb 2005 Location: Australia, Sunny Sydney Posts: 410	Re: Coaxial Oxygen sensors Time to experiement with fitting co-ax to a Subsea setup? I'll bring the beer... __________________ Yellow - the colour of greatness! Last edited by Andy Del : 30th May 2008 at 04:30. Reason: kan't zpell styll
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30th May 2008, 08:52	#4 (permalink)
DivnSapper New Member Current Rebreather/s: Dolphin Other Rebreather/s: Dolphin Join Date: Apr 2006 Location: Qatar Posts: 86	Re: Coaxial Oxygen sensors Any perfered sources for parts for completing a conversion of a molex system to a coax based system? Thanks, Ryan
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30th May 2008, 13:44	#5 (permalink)
koputai Subsea Systems Current Rebreather/s: MK 15.X Other CCR Other SCR Other Rebreather/s: Not Bought Yet Other CCR Other SCR Join Date: Jul 2005 Location: Sydney, Australia Posts: 326	Re: Coaxial Oxygen sensors Quote: (Originally Posted by Andy Del) Time to experiement with fitting co-ax to a Subsea setup? I'll bring the beer... Hmm, I had been thinking about that, but I can't imagine most KISSers would want to go for the co-ax sensors due to cost and availability issues. It's easy enough to do though. The reason I'm asking though, is that I'm currently (like forever) doing a major rebuild on the Mk15 and am considering which sensors and connectors to go for. I'm totally sick of the crappiness of the Winchester connectors that the R-10 Mk15 sensors use, they are always intermittant, and suffer from moisture ingress quite a lot. Probably the crappiest point in the whole Mk15 system (along with lots of other crappiest points, but hey, no system is perfect, and it's still the worlds best rebreather!). I'm also wary of the Molex's as they have lots of issues as well. If the coax connectored R-22's are uber-reliable, I'll go for those. Cheers, Jason.
(Online)

30th May 2008, 13:49	#6 (permalink)
Drmike Custom Title Allowed! Current Rebreather/s: MK 15.X Ouroboros Other CCR Home Build Other Rebreather/s: Inspiration Classic Other CCR Home Build Join Date: Feb 2005 Posts: 3,157	Re: Coaxial Oxygen sensors Quote: (Originally Posted by DivnSapper) Any perfered sources for parts for completing a conversion of a molex system to a coax based system? Thanks, Ryan bought my homebuild ones from RS and soldered/potted them. these are longer than the ones used in inspo/evo and prob wont fit in those units __________________ Cave diving is a sport Wreck diving is a sport Diving in general is a sport 'Rebreather diving' is not a sport its the delusional obsession with a highly dangerous and often inappropriate piece of equipment
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30th May 2008, 13:52	#7 (permalink)
Drmike Custom Title Allowed! Current Rebreather/s: MK 15.X Ouroboros Other CCR Home Build Other Rebreather/s: Inspiration Classic Other CCR Home Build Join Date: Feb 2005 Posts: 3,157	Re: Coaxial Oxygen sensors Quote: (Originally Posted by koputai) Hmm, I had been thinking about that, but I can't imagine most KISSers would want to go for the co-ax sensors due to cost and availability issues. It's easy enough to do though. The reason I'm asking though, is that I'm currently (like forever) doing a major rebuild on the Mk15 and am considering which sensors and connectors to go for. I'm totally sick of the crappiness of the Winchester connectors that the R-10 Mk15 sensors use, they are always intermittant, and suffer from moisture ingress quite a lot. Probably the crappiest point in the whole Mk15 system (along with lots of other crappiest points, but hey, no system is perfect, and it's still the worlds best rebreather!). I'm also wary of the Molex's as they have lots of issues as well. If the coax connectored R-22's are uber-reliable, I'll go for those. Cheers, Jason. My mk155.5 sensor wires are soldered directly to the sensor wires with a bit of heatshrink - best mod I ever did and totally uber-reliable __________________ Cave diving is a sport Wreck diving is a sport Diving in general is a sport 'Rebreather diving' is not a sport its the delusional obsession with a highly dangerous and often inappropriate piece of equipment
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31st May 2008, 14:21	#8 (permalink)
koputai Subsea Systems Current Rebreather/s: MK 15.X Other CCR Other SCR Other Rebreather/s: Not Bought Yet Other CCR Other SCR Join Date: Jul 2005 Location: Sydney, Australia Posts: 326	Re: Coaxial Oxygen sensors Quote: (Originally Posted by Drmike) My mk155.5 sensor wires are soldered directly to the sensor wires with a bit of heatshrink - best mod I ever did and totally uber-reliable Pretty bulletproof there Mike! Not really user friendly though hey? Cheers, Jason.
(Online)

2nd June 2008, 01:08	#9 (permalink)
julieann charters New Member Current Rebreather/s: Home Build Other Rebreather/s: Inspiration Classic Home Build Join Date: Nov 2005 Location: Anglesey Posts: 45	Re: Coaxial Oxygen sensors yep coax connectors should be standard issue for QC cells as molex are total shite. i bought pre-wired coax 90degree bend connectors from radio spares seem to recall 4 prewired ends with 500mm wire tails worked out at around £10 not worth pissing about trying to solder em yourself as they are tiny. quick cheap conversion on most units. pop off the top disc and fill with epoxy glue to make em sealed against conductor corrosion . elfyn __________________ Diving Angleseys wrecks and reefs aboard hardboats "Julieann" & "Empress" with diver/ skippers Elfyn &Terry both on ccr since 1999. www.julie-anne.co.uk 08004584090 07768863355
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2nd June 2008, 04:14	#10 (permalink)
Drmike Custom Title Allowed! Current Rebreather/s: MK 15.X Ouroboros Other CCR Home Build Other Rebreather/s: Inspiration Classic Other CCR Home Build Join Date: Feb 2005 Posts: 3,157	Re: Coaxial Oxygen sensors Quote: (Originally Posted by koputai) Pretty bulletproof there Mike! Not really user friendly though hey? Cheers, Jason. no but i only have to de-solder them maybe once a year (a small soldering iron is handy thing to keep in ones dive tool kit) __________________ Cave diving is a sport Wreck diving is a sport Diving in general is a sport 'Rebreather diving' is not a sport its the delusional obsession with a highly dangerous and often inappropriate piece of equipment
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