Perdix AI vs SPG pressure difference?
- Thread starter ickebins
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Mike1967
Contributor
Yeah couldn't get easier than using bars for calculations.
TRobert
Registered
I believe the accuracy of the Shearwater transmitter is stated in their documentation to be +/- 1 bar.
My Dive Rite SPG seemed to read several bar lower than the Cressi SPG I owned earlier (same dive shop fills). And now with the Shearwater AI my beginning pressures are usually several bar higher than either of the SPG readings.
The most important question is what is the accuracy at the low end of the scale
Dive Gear Express says +/- 5 bar at 50 bar tank pressure for SPG.
I think that it's a good idea to not push your luck towards the end of a dive regardless of what technology you're using.
My Dive Rite SPG seemed to read several bar lower than the Cressi SPG I owned earlier (same dive shop fills). And now with the Shearwater AI my beginning pressures are usually several bar higher than either of the SPG readings.
The most important question is what is the accuracy at the low end of the scale
Dive Gear Express says +/- 5 bar at 50 bar tank pressure for SPG.I think that it's a good idea to not push your luck towards the end of a dive regardless of what technology you're using.
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