DESCENT MK3 SERIES Owner’s Manual

Apnea and Apnea Hunt Data Screens

The in-dive screen for the apnea and apnea hunt dive modes displays information about the current dive, including the elapsed time, current maximum depth, and rate of ascent or descent. During surface intervals, you can press DOWN to scroll through additional data, including last dive depth and time, view the map screen (Diving with the Map), and use the stopwatch (Using the Basic Dive Stopwatch).

Big Numbers Mode

You can change the size of the numbers on the single-gas, multi-gas, and CCR dive data screens.

  1. Hold MENU.
  2. Select Dive Setup > Display Settings.
  3. Select Single-Gas Mode, Multi-Gas Mode, or CCR Mode.
  4. Select Big Numbers.

    

Your rate of ascent.
Green: Good. Ascent is less than 7.9 m (26 ft.) per minute.
Yellow: Moderately high. Ascent is between 7.9 and 10.1 m (26 and 33 ft.) per minute.
Red: Too high. Ascent is greater than 10.1 m (33 ft.) per minute.

Indicates whether closed-circuit (CC) or open-circuit (OC) diving is active in a CCR dive.

Your partial pressure of oxygen (PO2) level.