WetLens
Contributor
Sherwood Wisdom numbers:
Depth 50 60 70 80 90 100 110 120 130
Air NDL 81 57 40 30 24 19 16 13 11
EAN32 148 92 65 49 37 30 25 21 -- (PO2 set at 1.6)
Orca Pilot EAN
Air NDL 85 54 41 31 24 19 13 10 9
EAN32 141 93 63 47 37 29 24 --- --- (PO2 set at 1.4)
Could not get my Edge fired up at this time - need to solder a wire or two to get battery connected - will add later.
I did this to compare computers I have been using over the years. Edge starting in 1988; Orca Pilot in mid-90s; Wisdoms since early 2000s; just bought a Petrel. I have used my Pilots as backup to the Wisdom since switching and found they tracked fairly well together. Differences occur only when drifting into deco (Wisdom IMHO behaves badly) and on Nitrox when approaching MOD (again, Wisdom IMHO behaves badly in ways other than NDL/deco issues).
These comparisons are nice if all I planned on doing are single NDL dives. It is what the computers (algorithms) do on repetitive dives and light excursions into deco (I really hesitate to use that term for all the flames it will attract) that will matter to me. Problem is, Sherwood does not make their algorithm available for these comparisons, so it'll have to be based on actual dives. I plan on continuing to use the Wisdom. For the first few dives, it'll be primary and use this time to get used to the Petrel and evaluate settings. Once comfortable, I'll switch to the Petrel as primary and likely put Wisdom in gage mode. Still thinking about that one as I would then have to carry another backup...
Depth 50 60 70 80 90 100 110 120 130
Air NDL 81 57 40 30 24 19 16 13 11
EAN32 148 92 65 49 37 30 25 21 -- (PO2 set at 1.6)
Orca Pilot EAN
Air NDL 85 54 41 31 24 19 13 10 9
EAN32 141 93 63 47 37 29 24 --- --- (PO2 set at 1.4)
Could not get my Edge fired up at this time - need to solder a wire or two to get battery connected - will add later.
I did this to compare computers I have been using over the years. Edge starting in 1988; Orca Pilot in mid-90s; Wisdoms since early 2000s; just bought a Petrel. I have used my Pilots as backup to the Wisdom since switching and found they tracked fairly well together. Differences occur only when drifting into deco (Wisdom IMHO behaves badly) and on Nitrox when approaching MOD (again, Wisdom IMHO behaves badly in ways other than NDL/deco issues).
These comparisons are nice if all I planned on doing are single NDL dives. It is what the computers (algorithms) do on repetitive dives and light excursions into deco (I really hesitate to use that term for all the flames it will attract) that will matter to me. Problem is, Sherwood does not make their algorithm available for these comparisons, so it'll have to be based on actual dives. I plan on continuing to use the Wisdom. For the first few dives, it'll be primary and use this time to get used to the Petrel and evaluate settings. Once comfortable, I'll switch to the Petrel as primary and likely put Wisdom in gage mode. Still thinking about that one as I would then have to carry another backup...
