SUUNTO DX - Manual (Page 55)

ADJUST WITH UP AND
DOWN BUTTONS. ACCEPT
WITH SELECT BUTTON.
When in the MIXED or CCR OC Gases setting mode, the equivalent maximum oper-
ating depth, based on the chosen setting, is also be displayed.
After entering values for Mix1, you can set additional mixes, Mix2–Mix8, similarly. You
can set them to "PRIMARY", "SECONDARY" or "OFF". Mix1 is always set as a primary
gas.
In order to minimize the risk of error during a dive, it is highly recommended that the
mixes are set in the proper order. This means that as the mix number rises, so does
oxygen content, and this is the order they are usually used during the dive. Before a
dive, only enable the mixes you actually have available and remember to check the
set values to ensure they are correct.
The ASC time is calculated based on the assumption that you start the ascent profile
immediately and all the PRIMARY gases are changed as soon as their maximum op-
erating depth allows it. That is, using the gases that are set as primary, the most op-
timal ascent schedule for the moment is calculated.
To see the most pessimistic ascent schedule, that is, a schedule for the situation when
gases are not changed at all, you can set the gases as SECONDARY and the time it
takes to finish the decompression using the current breathing gas is shown as the
ASC time.
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