| Re: Rudimentry sensor mV monitoring
I found this tread very interesting (Gilles got green) as I seem to have the same problem:
In long dives my cells develop a lot of condensation and at the end of the dive “under-read” substantially.
In 3+ hour dives I have seen 0.90 instead of 0.99 with O2 (using the calibration kit after the dive) and 0.19 on air (thats around 10% off!!)
I seem to have the same problem in long dives both in cold (11 deg c) or warm (24 deg c) water
Of course as it has been suggested a solution is to do a wet calibration- but that’s a work around not a real solution.
I wonder if anyone has to suggest any ideas ?
Also:
Why do some people have this problem and some not (on the same units)
Could it be a “sensitive” batch of sensors?
Could there be any diver habit that aggravates the condensation?
(on a side note: this is one more reason I am happy I was taught to run my unit on a low po2.
Running with 1.3 and having this kind of problem could mean really having 1.43ish, that for long dives would not be nice, especially if you would bring the po2 up for deco)
Last edited by gtzavelas : 16th September 2007 at 15:35.
Reason: spelling
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