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
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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
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broncobowsher
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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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