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Old 12th September 2006, 22:29   #29 (permalink)
Gilles
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Re: Rudimentry sensor mV monitoring

Quote: (Originally Posted by Peter Piemonte) View Original Post
I always wonder why cell 2 seems the most affected. Under these circumstances, recalibrating at 100% O2 will usually result in cell 2 reading 3-4% low. The others seem unaffected.
I'm curious to find out if cell 2 is the only cell you notice moisture on? or do all 3 get moist, but only #2 is affected?


[/quote]Leaving the loop flushed with Dil overnight seems to help dry out the sensors on multi dive trips. I usually check the cell calibration just prior to diving under these circumstances. After recalibration, I normally see the sensors very close during the dive, and when flushing the loop with O2 at 20' I see ~1.55-1.6 on all cells. After drying the cells, I usually have to recalibrate cell two. Starting a cell MV log, seems a great idea. Peter[/quote]

I don't understand the purpose of this. Is it not preferable to calibrate the cells in the state you expect them to operate in (i.e. in a moist state)? Note that this is ok providing they are still behaving linearly.

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