PO2 Alarm Default

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eweingarden

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Location
Canton, CT
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I have a Zeagle N2ition/IST GP-3000 computer. If I understand the manual correctly, the PO2 limit/alarm defaults to 1.4 for an FO2 of 21%, and 1.6 for any Nitrox mix greater than 21%. If I am diving with 32% Nitrox, I would want to keep the PO2 limit/alarm set for 1.4. I am not seeing a way to change the PO2 limit value. Is it not possible to change the 1.6 default value, or, am I not understanding something about the function of the computer? Thanks.
 

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