I realized that my NERD 2 is measuring 10 mbar more than my Perdix and Petrel (they both agree within 1 mbar of each other). 10 mbar is not a lot as it translates in about 10 cm or 4 in of water. Is this within the sensor tolerances or should I send it back for calibration?
Tolerance on pressure sensors
- Thread starter LFMarm
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- nerd 2 shearwater
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Capt Jim Wyatt
Hanging at the 10 Foot Stop
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Huh?
The Nerd2 claims an accuracy of +/- 50 mbar at the surface.
Perdix AI and Petrel 3 is +/- 20 mbar.
I think you are likely well within the tolerances of the Nerd 2.
Perdix AI and Petrel 3 is +/- 20 mbar.
I think you are likely well within the tolerances of the Nerd 2.
L13
Contributor
broncobowsher
Contributor
Mine have never matched. The two different Petrels match. But none of the seven NERDs ever matched the Petrels. I just tweak the calibration O2 so they will both cal the same. In a 2-3 hour dive they will both clear deco withen a minute of each other. Probably most of that is my wrist is lower than my head.
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