Shearwater Teric Incorrect SAC Rate & Other Issues

[Macan]

I noticed that the Shearwater Teric SAC rate calculation in the Teric Log appears to be incorrect and inconsistent with the downloaded data on the Shearwater Cloud app. Example:

Downloaded Data from the Teric on the SW Cloud:

Start Pressure: 199.81 bar
End Pressure: 55.02 bar
Dive Time: 53.42 min
Avg Depth: 11.50 meters

Using the SAC formula:
SAC Bar/Min = ((Start P - End P) / Time)/ATA

Manual calculation of SAC rate should be: 1.26 bar/minute

• On the Teric Log (in the device), the SAC rate is displayed as 1.51 bar/min

• On the Shearwater Cloud app, the SAC rate is displayed as 1.26 bar/min

Per the manual calculation using the SAC formula above, the SAC rate displayed on the SW Cloud (1.26 bar/min) appears to be correct while the SAC rate on the Teric device (1.51 bar/min) appears to be wrong. This is the same case across 10 dives on the Teric.

Is this also true on the Perdix AI?

@tcoen, would appreciate feedback. Thanks!

 

[Shearwater]

Thank you for the bug report, Macan. We are now working on fixing it. Cheers.