User guide

Introduction
7 NiTek X Dive Computer User Manual v1.1
those at higher risk of decompression illness (DCI) are assumed to
absorb and release nitrogen and/or helium from body tissues. Thus,
the NiTek X cannot compensate for factors such as age, obesity,
dehydration, cold, or exertion, which experts believe place divers
at greater risk of DCI. If these, or similar factors apply to you, use
the NiTek X—and other dive computers or dive tables—with even
greater caution.
• Experts still know surprisingly little regarding the exact nature and
causes of decompression illness (also known as decompression
sickness, DCI, or DCS). Susceptibility to DCI may vary
substantially from person to person and from day to day. Neither
the NiTek X—nor any other dive table or computer—can
guarantee that you will not suffer decompression illness. Even
though you use these items correctly, you may still suffer DCI. Use
your NiTek X conservatively and in conjunction with other dive
planning devices, such as dive tables. Do not rely on the NiTek X,
or any similar device, as your sole means of avoiding
decompression illness.
When diving…
• Do not “push” the no-decompression limits (NDLs). Make safety
stops before ascending. If you exceed the no-decompression limits,
check your breathing gas supply at all stop depths.
• The NiTek X does not monitor breathing gas supply. You must
monitor this yourself, on every dive, using a submersible pressure
gauge or equivalent device.
• Because the NiTek X can be programmed to use multiple gases, it
is extremely important that you have set the proper gases in the
NiTek X before your dive and you understand how to switch
between the different mixes during your dive.
• Do not rely solely on this or any other dive computer. Take a back-
up dive computer or dive tables (along with a separate means of
monitoring depth and dive time).
• Be aware that the NiTek X makes assumptions regarding residual
nitrogen and/or helium based on altitude settings. Avoid making
abrupt changes in altitude following a dive, as doing so may be
very dangerous.