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In the NITROX mode, the default setting for Mix1 is standard air (21% O
2
). It remains
in this setting until the O
2
% is adjusted to any other percentage of oxygen (22%–99%).
The default setting for maximum oxygen partial pressure is 1.4 bar, however you are
able to set it in the range of 0.5–1.6 bar.
Mix2 is set to OFF by default. To set Mix2 , refer to Section 6.2.4. Gas change and
multiple breathing gas mixes. Oxygen percentages and maximum oxygen partial
pressures for Mix2 are stored permanently.
6.2.2. Oxygen displays
When the NITROX mode is activated, the display will show the information in the figure
below. In the NITROX mode, the maximum operational depth is calculated based on
set O
2
% and PO
2
values.
NITROX DIVE MODE ACTIVATION.
MAXIMUM OPERATIONAL DEPTH BASED ON
SET O
2
% (21%) AND PO2 (1.4 BAR) IS 53.6 M.
If set to the NITROX mode, the Suunto D6i will additionally show on the alternative
display:
•
the oxygen percentage, labeled O
2
%
•
the set oxygen partial pressure limit, labeled PO
2
•
the current oxygen toxicity exposure, labeled OLF%
•
maximum depth
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