Uwatec Z1, User Manual

Page: 34 / 88

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7-1. Displayed Contents in Surface Mode
The Surface Mode is a display mode used when nitrogen remains in the
body after diving. In additional to normal Watch Mode data (Time, Date,
etc.), the Surface Mode also displays Desaturation and Surface Time.
However, when the oxygen content is set to 22% or more in the Plan Mode,
the maximum value of the 0
2
% is displayed alternately with Surface Time.
In Surface Mode the following information is displayed:
NOTES:
•
Regardless of the presence of nitrogen and oxygen in the body, 48
hours after diving the Z1 automatically switches to Watch Mode.
• The NO FLY icon will disappear from the screen after 18 hours. Con-
versely, even if nitrogen saturation or oxygen uptake times out and
your Z1 switches to Watch Mode, the NO FLY icon will remain until 18
hours have elapsed.
• Desaturation time varies with changes in atmospheric pressure.
Therefore, desaturation time is not based on a countdown timer.
NO FLY icon
DO NOT board airplanes while this shows.
tissue nitrogen indicator
Amount of nitrogen accumulated in the body, displayed
in 10 levels. (last line left)
oxygen uptake or
ppO
2
indicator
Amount of oxygen accumulated in the body, displayed
in 10 levels. (last line right)