Operation Manual

Atmos Pro/Aeris 300G

will greatly increase your risk of decompression sickness, and place the

unit into a Conditional Violation Mode, described later.

When coping with surge and swells, it may be difficult to stay at an exact

depth. You should stay slightly deeper (Fig. 55a) than the required stop depth

indicated until the next shallower stop depth appears. Then, you can ascend

to, but not shallower than, that indicated ceiling stop depth.

Once you have performed the required decompression, the Atmos Pro/Aeris

300G will switch to the No Decompression Dive Mode, allowing additional time

underwater. Though more time is theoretically available, it is strongly recom-

mended that you spend the remainder of the dive continuing to decompress at,

or slightly deeper than, 10 feet (3 meters). This will let the Nitrogen Bar

Graph recede further into the yellow Caution zone or green No Decompression

zone, helping you reduce your tissue nitrogen loading as much as possible.

WARNING: If you exceed certain limits, the Atmos Pro/Aeris

300G will not be able to tell you how to get safely back to the

surface. These situations exceed tested limits and can result in

loss of some of the unit's functions for 24 hours after the dive in

which a violation occurred.

Fig. 55 - Managing a

Required Stop