O2 sensor values on CCR dives

[Anton Lundin]

On 17 November, 2017 - Davide DB wrote:

> Looking to one of my CCR dives (Petrel 2 controller) I realized that
> Po2 values reported by Subsurface at the 6 meter stop are way higher
> than those recorded and displayed by Shearwater Desktop.
> I'm 100 sure that Shearwater Desktop shows correct values because I
> perfectly remember O2 values I was seeing at 6 meter: I was never
> never never over 1.6 for all the time.
> According to Subsurface profile I was all the time at 6m over 1.6 with
> spikes at 1.75.
> Am I missing something?
> 
> I chose a point in time (122' 50")and I attach three screenshots:
> 
> Shearwater (which display only the AVG pO2)
> Subsurface with single pO2 sensor display
> Subsurface with AVG pO2 sensor display

Could you dump the raw data from the device?

It can be done using either dctool or using the predator protocol and
creating a device dump.


You could probably just send a log file of the download, I think I still
got the tool to replay a log file as a download.


Then I can take a look at the raw data to try to figure out what's going
on.


//Anton


-- 
Anton Lundin	+46702-161604