Low O2 Sensor Readings

IDS_Bill

Hey Everyone,

We've been doing a body search for the past month at the lake at around 150ffw and I have been seeing some weird things with the O2 Sensor mV readings. I have replaced two sensors in the past month and even the new ones read below 42mV when calibrating. I am blowing through the things and I can't figure out why. Possible factors are:

- Duracell batteries lately ilo Saft
- Hotter than heck out there - 107 degrees and the temp may afect it
- Dive conditions 150ffw, 54 degrees F, nasty as &$%@

Thanks!

Bill

teksimple

According to Deep Life, the main reason why any O2 cell degrades over time is that the electrolyte evaporates. I would say that exposing your cells to an environment such as you describe, electrolyte evaporation may be accelerated. Perhaps storing your sensors in a cooler environment when you are not using them may help?

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jradomski

low humidity will age the cells faster.. if its left in a dry enviroment expect the cells to degrade much faster than normal.. ..
You should try and keep the cells in the 70-80sih temp range with at least 50% RH..

Don;t leave the cells exposed.. keep them sealed in something.. I had some friends that were working in very warm climate that kept complaining that their cells were only lasting 6 months top.. they told me they were leaving the lids open to dry and store in an air conditioned room..

I told them to stop this practice, they did... the cells started lasting much longer...

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Joe Radomski
CCR Trimix Instructor Trainer
ANDI Instructor Trainer Director #10

All posts are personal opinions and DO NOT reflect any affiliated agency unless specifically stated.