Scubapro XTENDER Mode D'emploi page 11

Regardless of the type of dive, you can use the buttons to access other information
that is not shown on the main screen in dive mode. Pressing the "mode" button
will display: The current time, the oxygen percentage set (from 22 to 99 percent,
or "Air"), and the personal safety level selected.
The "select" button will display the maximum depth reached up to that point, the
water temperature, and the dive time.
On the left side of the display, a bar graph provides a visual indication of the
nitrogen saturation level. The bar is divided into nine segments; if all of them are
activated (that is, the bar reaches the top of the display), the dive becomes a
decompression dive (Fig. 4).
nitrogen
saturation
level
Figure 4
On the right side of the display there is another bar, similar to the one for nitrogen, but
divided into eight segments, representing the level of oxygen toxicity on the Central
Nervous System. During dives with air to depths of less than 40 meters, the CNS
value will increase slowly, but on a Nitrox dive it is important to monitor this value
closely; this will be described in detail in the corresponding section.
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