Suunto D9 manual Setting the dive-time alarm, Setting the nitrox values

The depth alarm is factory-set to 40 m/131 ft, but you can adjust it according to your personal preference, or switch it off altogether. The depth range can be set from 3m to 100 m/9 ft to 328 ft.

5.9.2. Setting the dive-time alarm

The Suunto D9 has a dive-time alarm setting which, when activated, can be used for several purposes to add to your diving safety.

ADJUST WITH UP AND

DOWN BUTTONS. ACCEPT

WITH SELECT BUTTON.

NOTE	With a range of 1 - 99 minutes, the alarm can be set to your
	planned bottom time, for example.

5.9.3. Setting the nitrox values

If set to the NITROX mode, the correct oxygen percentage of the gas in your cylinder (and additional gases) must always be entered into the computer to ensure correct nitrogen and oxygen calculations. In addition, the oxygen partial pressure limit must be set. When in the Nitrox setting mode, the equivalent allowed maximum depth, based on the chosen setting, will also be displayed. Settings for additional mixes (MIX2, MIX3) are made similarly, but with the additional selection of “ON” or “OFF”.

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