12
Figure 3: Surface Mode. When at least 24 hours has passed
since previous dives and the IQ-600 determines there is no
significant residual nitrogen present (and the cumulative effect
of exposure to elevated PO
2
s has sufficiently diminished), it
displays only date, time of day and Altitude Rank, as shown in
the upper left.
Here is what each Altitude Rank symbol means:
Rank Altitude Range
0 Sea Level to 2,624 ft/800m
1 2,624 ft/800m to 5,248 ft/1,600 m
2 5,248 ft/1,600 m to 7,872 ft/2,400 m
3 7,872 ft/2,400 m to 19,680 ft/6,000 m
E Above 19,680 ft/6,000 m (Out of Range)
Prior to using your IQ-600 at altitudes substantially above
sea level, you should find out what the actual altitude of your
dive site is, and make certain that the altitude settings your
IQ-600 displays accurately matches this height.
