On 4 December 2017 at 15:47, Jef Driesen <[email protected]> wrote:
> > Davide's data is the exception to the rule. It's the only dataset with CCR > dives present, and an ADC offset of -1. I'm not sure what's going on there. > The -1 could be a valid value here, but it would be really coincidence if > all three sensors have the same ADC offset. All other datasets with CCR > dives have different values for each sensor. > > I suspect the millivolt values already take into account the ADC value. > Because if that's not the case, then I would expect to see large deltas > between the stored average ppO2 and the manually calculated ppO2 after > doing the millivolt conversion. The larger the ADC offset (absolute value), > the larger the delta. But the cases where I see a delta larger than 0.02 > seems to be cases where one sensor is an outlier and was most likely voted > out. But again Davide's dataset seems to be the exception here. > > Jef I don't like to be an exception :) How I can help? Jef, do you remember I gave you two JJ CCR dataset coming from my buddies? I don't know if they could be of some help. I can ask to a friend of mine to download its data via dctool: we bought our two SF2 units together. Regarding the question if sensor #2 was voted out. I don't think so. When one or more sensors are voted out their pO2 value is clearly displayed in yellow. I never saw something strange going on in water. I guess even the SD software should report a similar event which is not. >From the Petrel manual I see that a sensor is voted out for a percentage difference >= 20%. In the last part of my deco I see a max difference of 10% I think. -- Davide https://vimeo.com/bocio/videos
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