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To exit this mode: You may exit Dive Plan Mode in a variety
of ways:
Go Diving
—Taking the
IQ-600
under water will cause it to
automatically leave Dive Plan Mode and enter Dive Mode.
Return to Surface Mode
—To do so, simply press and hold
the
A
button for at least three seconds.
Access FO
2
Set Mode—To do so, press and hold the A and B
buttons for at least six seconds (we will describe FO
2
Mode
next).
Do Nothing
—
The IQ-600 will return automatically to Surface
Mode within five to six minutes.
2.04 FO
2
Set Mode
Prior to every dive, it is important to access your IQ-600’s
Dive Plan Mode, to ensure the the computer’s current FO
2
set-
tings match the oxygen concentration in your breathing media.
If these do not match, you must be able to change the IQ-600’s
FO
2
setting so that it is the same as the gas in the cylinder(s)
from which you will breathe. To do so, you must enter and use
the computer’s FO
2
Set Mode.
To enter this mode: While in Dive Plan Mode, press and hold
buttons A and B for at least six seconds.