Cells, Mvs and linearity in the older unit

[JonG1]

My Predator finally revealed why it had been giving errant battery readings when one of the leads to the battery snapped.

No bother I figure, hooking up my SW Gradient Factor to the unit, however the GF doesn't compensate for altitude and atmospheric so will exhibit some margin of error over a compensated PDC.

I also seem to recall that my original KISS triples didn't have the facility to read MV or compensate for altitude would have been impossible to check for linearity.

So my guess is that back in the day there was no option but to dive with some degree of inaccuracy and less confidence in linearity checks?

 

[JonG1]

I was thinking this might spark some debate about how much accuracy is actually required/demonstrated in cells and what the real world implications are in terms of linearity, especially if historically in the absence of atmospheric compensation calibration was compromised.

Does anyone have any insight at all

 

[rjack321]

Narked has made a pressure pot for a long time (20yrs?). Anything that isn't measure deviation from linearity above the actual diving setpoint is a bit of a WAG anyway.