Owner`s manual

NiTek
1
/NiTek
3
Owner’s Manual Page 18
FO
2
values. Use a value of 99 percent for pure oxygen. If you scroll past 99 percent,
the FO
2
value displayed will change to 21, and the cycle will repeat.
On the NiTek
3
, press button A if needed to select mix 2 or 3. For each mix,
button B will function the same as it does on the NiTek
1
.
As we will discuss further, later on in this manual, we encourage you to enter
an FO
2
value for all three mixes—even if you plan to use just one or two separate
breathing media during the dive. Among other things, doing so will decrease the
likelihood you begin a dive with the computer set to the wrong mix, or to a mix
setting which has entered FO
2
default.
To exit this screen: You can exit the FO
2
Set screen in a variety of ways:
➤ Go Diving—Taking the NiTek under water will cause it to automatically leave the
FO
2
Set screen and enter Dive Mode.
➤ Return to Surface Mode—To do so, simply press button A as many times as
needed.
➤ Do Nothing—The NiTek will return automatically to Surface Mode within fi ve
to six minutes.
Dive Plan Mode
Your NiTek’s Dive Plan Mode enables you to answer the question, “If I enter the
water right now, how long can I stay at various depths while remaining within the
NiTe k’s No-Decompression Limits?” Among the benefi ts of accessing your NiTek’s
Dive Plan Mode before taking it under water is that it enables you to “scroll” through
Dive Plan Mode to help better estimate and plan your dive.
An even more important benefi t of doing so is that accessing Dive Plan Mode
prior to every dive allows you to confi rm that your NiTek is set to a Fraction of
Oxygen (FO
2
) that accurately matches the concentration of oxygen in the media you
will breathe during the dive.
Do not use your NiTek without confi rming that its FO
2
setting
accurately matches that of your breathing media. Failure to do so
may mean that your NiTek will be unable to accurately monitor
your exposure to nitrogen and oxygen, and lead to decompres-
sion illness (DCI) or CNS Oxygen Toxicity—conditions that can
cause serious personal injury or death.
To enter this mode: From Surface Mode, simply press the A button once and
release it.