SUUNTO DX - Manual (Page 53)

The figure below shows how to enter the DIVE mode settings menu.
USE UP AND
DOWN BUTTONS TO
TOGGLE BETWEEN
DIVE SETTINGS.
NOTE
Some settings cannot be changed until five (5) minutes has
elapsed after the dive.
5.8.1. Setting the CC gases
If set to the DIVE CCR mode, the correct oxygen and helium percentages of the diluent
gas(es) in your diluent cylinder(s) must always be entered into the dive computer to
ensure correct tissue and oxygen calculation. The Set Point mode is used for setting
the high and low oxygen partial pressure values.
When in the CCR CC Gases setting mode, the equivalent maximum operating depth,
based on the chosen setting, is also be displayed.
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