39
When seven of the OLI’s eight pixels appear, the IQ-600’s
audible alarm will sound for three seconds, and the OLI dis-
play will blink on and off for the same amount of time.
Figure 13: Oxygen Limit Index (OLI) Warning.
If you do not ascend to a shallower depth, and all eight of the
OLI’s eight pixels appear, the alarm will again sound and the
display will again blink. As shown in Figure 13, the this por-
tion of the display will continue to blink until you ascend to a
point where the OLI drops to seven pixels.
Should the OLI and PO
2
Warnings acti-
vate at roughly the same time—and at rel-
atively shallows depths, early in the
dive—you most likely
have not
exceed-
ed your actual oxygen limits. What has,
again, happened is that you forgot to set
the
IQ-600
’s FO
2
prior to the dive. See
page 42 for more information on why and
how the
IQ-600
’s FO
2
setting defaults,
and its implications.
