34
Be aware that it is possible to make stops at depths deeper
than those indicated; however, you may find doing so increas-
es the time you must spend at each stop. For example, let’s say
that the indicated stop is five minutes at 10 ft/3m. You choose,
however, to make your stop at 15 ft/5m. You may discover
that, by doing so, it takes seven or eight minutes (or more)
before your “five minute” stop clears and the IQ-600 returns
to Dive Mode.
Warnings you may encounter: While in Dive Mode, you
should be alert for the following warnings:
FO
2
Default Warning—As you first enter the water and/or
begin your descent, you may hear the IQ-600’s audible
alarm sound. This warning alerts you that the computer’s
FO
2
setting has defaulted, following a previous Nitrox dive
(see page 42 for more information on how and why the
FO
2
setting defaults after such dives). If you hear this
warning, halt your descent, return to the surface and reset
the FO
2
so that it accurately reflects the concentration of
oxygen present in your cylinder(s).
Do not use your
IQ-600
under water if the
FO
2
setting has defaulted. If you do so,
the computer will be unable to accu-
rately track your exposure to elevat-
ed partial pressures of oxygen.
You
will also be unable to take advantage of
the longer No-Decompression Limits
(NDLs) that breathing Enriched Air
Nitrox (EANx) normally provides.
