Complications; Decompression; Decompression Entry; Decompression Stop Main - Aqua Lung i750TC Owner's Manual

The preceding information has described standard dive operations. Your new i750TC is also designed to help you
to the surface in less than ideal situations. The following is a description of these situations. Take some time to
familiarize yourself with these operations before diving your i750TC.

DECOMPRESSION

Decompression (deco) mode activates when theoretical No Decompression time and depth limits are exceeded.
Upon entry into deco, the audible alarm will sound. The full N2 bar Graph and Up Arrow icon will flash until the
audible is silenced.
• Once within 3 m (10 ft) below the required Stop Depth (stop zone), the Full Stop icon (both Arrows with Stop
Bar) will be displayed solid.
To fulfill your decompression obligation, you should make a safe controlled ascent to a depth slightly deeper than,
or equal to, the required stop depth indicated and decompress for the stop time indicated. The amount of decom-
pression credit time that you receive is dependent on Depth, with slightly less credit given the deeper you are
below the Stop Depth indicated. You should stay slightly deeper than the required Stop Depth indicated until the
next shallower Stop Depth appears. Then you can slowly ascend to that indicated Stop Depth but not shallower.

DECOMPRESSION ENTRY

Upon entry into decompression (deco) the audible alarm will sound until the audible is silenced. The message
DECO ENTRY, up arrow, and full N2 Bar Graph icons will flash. Additionally, the stop depth and stop time values
will be displayed. TTS (Time To Surface) and DIVE-T (Dive-Time) moveto the Alt 1 screen.
stop depth

DECOMPRESSION STOP MAIN

Decompression (deco) Stop Main will display upon ascending to within 3 m (10 ft) below the Deco Stop depth.
The message DECO STOP, the full stop graphic (opposed arrows with stop bar) will be displayed solid. While
Deco Stop Main is displayed, you may access up to 2 ALT displays by pressing the ADV button to cycle through
them. They are similar to the No Deco Main, Dive ALT 1, and Dive ALT 2 displays, respectively.
stop depth
© Aqua Lung International, Inc. (2016)

COMPLICATIONS

up arrow
remaining stop
time (min)
full stop graphic
remaining stop
time (min)
41
DIVE OPERATION
Doc. 12-7852-r05 (8/5/16)