R22D sensor question

sensor330 · 5th March 2005, 17:05

Hi All

I've got a question about sensors and I know it has been posted somewhere before but for the life of me cannot find it anywhere.

I know that the R22D is suppose to last about 1 year but what are the signs that it is going bad? I've had mine for about 8 month now and the other day I put them on a meter one read 10.7 Mv and the other read 9.8Mv. I remember reading somewhere that once it drops below 10Mv its time to change it. I was also reading the technical data on the sensors and it said the operating range is 8Mv - 13Mv.

Scott

Haapajarvi · 6th March 2005, 23:40

Check the linearity, if voltage in air is X volts it should be X*100/21 Volts in pure oxygen. Also monitor response time. Older sensors usually has response time that is more than ten seconds when good should act in 5-6 s (90 % reading).

-J

Drmike · 21st March 2005, 04:31

Quote: (Originally Posted by sensor330)

Hi All

I've got a question about sensors and I know it has been posted somewhere before but for the life of me cannot find it anywhere.

I know that the R22D is suppose to last about 1 year but what are the signs that it is going bad? I've had mine for about 8 month now and the other day I put them on a meter one read 10.7 Mv and the other read 9.8Mv. I remember reading somewhere that once it drops below 10Mv its time to change it. I was also reading the technical data on the sensors and it said the operating range is 8Mv - 13Mv.

Scott

The only thing you need to know is does it still reach 1.6 at 6m. The rest is immaterial

some info here
http://www.rebreatherworld.com/showt...?p=736#post736

5th March 2005, 17:05	#1 (permalink)
sensor330 Custom Title Allowed! Current Rebreather/s: Megalodon Other Rebreather/s: Not Bought Yet Inspiration Classic Join Date: Feb 2005 Location: Victoria, British Columbia, Canada Posts: 557	R22D sensor question Hi All I've got a question about sensors and I know it has been posted somewhere before but for the life of me cannot find it anywhere. I know that the R22D is suppose to last about 1 year but what are the signs that it is going bad? I've had mine for about 8 month now and the other day I put them on a meter one read 10.7 Mv and the other read 9.8Mv. I remember reading somewhere that once it drops below 10Mv its time to change it. I was also reading the technical data on the sensors and it said the operating range is 8Mv - 13Mv. Scott
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6th March 2005, 23:40	#2 (permalink)
Haapajarvi New Member Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Feb 2005 Location: Finland Posts: 5	Check the linearity, if voltage in air is X volts it should be X*100/21 Volts in pure oxygen. Also monitor response time. Older sensors usually has response time that is more than ten seconds when good should act in 5-6 s (90 % reading). -J __________________ http://breathewise.n3.net
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21st March 2005, 04:31	#3 (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: 3,128	Quote: (Originally Posted by sensor330) Hi All I've got a question about sensors and I know it has been posted somewhere before but for the life of me cannot find it anywhere. I know that the R22D is suppose to last about 1 year but what are the signs that it is going bad? I've had mine for about 8 month now and the other day I put them on a meter one read 10.7 Mv and the other read 9.8Mv. I remember reading somewhere that once it drops below 10Mv its time to change it. I was also reading the technical data on the sensors and it said the operating range is 8Mv - 13Mv. Scott The only thing you need to know is does it still reach 1.6 at 6m. The rest is immaterial some info here http://www.rebreatherworld.com/showt...?p=736#post736
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