r-22dho sensor

Muzz

Would someone explain the difference between the r-22d and r-22dho.
Muzz

nskdrs

R22DHO: This oxygen sensor is a high output replacement sensor for the Biomarine MK15/15.5, SM1600 (modified MK15), CCR-1000 rebreathers


R-22D: This 10mV +/- oxygen sensor has a 6 second response time and a 36 month life expectancy in air. This is a replacement sensor for the Inspiration Rebreather, CCR-2000. the Uwatec Oxy2, the KISS rebreather, the OxySpy and the VR3. It has hydrophobic membrane at the inlet, has a coated board, and uses a Molex connector.

Offgas

Is high output more desirable? And if so why? Would the Meg work with high output cell? Somewhere I though I read something that showed that high output sensors generally have better o2 resolution than low output, but then again maybe I'm talking out of my arse.

Offgas

caveseeker7

The CCR1000, it's derivatives originally came with analog secondary displays. The high output cells are needed to power the meter. The PRISM CCR still uses this layout and thus also has HO sensors (the SM202). Useful range is 16 to 22 mV, quite a bit higher than the R-22D and like sensors. I would think that the output is above the adjustment range of the electronics of rebreathers not set up for them. Just like the electronics of units using them would consider R-22Ds as bad cells and reject them for calibration. Aside from the secondaries not getting enough juice for a reading.

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Stefan



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