DESCENT MK3 SERIES Owner’s Manual

Viewing the Surface Interval Glance

  1. From the watch face, press UP or DOWN to view the surface interval glance.
  2. Press START to view your current oxygen toxicity units (OTU) and central nervous system (CNS) percentage.

NOTE: The OTU accumulated during a dive expire after 24 hours.

    

Green: 0 to 249 OTU.

Yellow: 250 to 299 OTU.

Red: 300 or greater OTU.

Green: 0 to 79% CNS oxygen toxicity.

Yellow: 80 to 99% CNS oxygen toxicity.

Red: 100% or greater CNS oxygen toxicity.
  1. Press DOWN to view your tissue load details.
  2. Press DOWN to view your no-fly time remaining and the time of day the no-fly period ends.