User guide

Introduction
3 NiTek X Dive Computer User Manual v1.1
Features and Functions
The NiTek X incorporates a number of important modes and
features:
• The NiTek X turns on automatically upon descent
• On the surface, the NiTek X displays a minimum of date and
time
• The NiTek X uses easily accessible and highly reliable push
buttons instead of exposed electrical contacts
• The NiTek X can be programmed to monitor exposure to
seven different gas mixtures during a dive in either open-
circuit or closed-circuit mode. Gas mixtures including
combinations of oxygen, helium, and nitrogen can be
programmed. Underwater, NiTek X users can switch
between mixes at the push of a button
• The NiTek X is capable of functioning up to a depth of 492
feet (149 meters)
• The NiTek X automatically adjusts for altitudes up to 19,685
feet (6,000 meters)
• The NiTek X displays a variety of data underwater
including: date, time of day, temperature, current and
maximum depths, no-decompression dive time elapsed and
remaining time
• The NiTek X displays data specifically related to the use of
Enriched Air Nitrox (EANx) and helium including: fraction
of oxygen (FO2) setting, fraction of helium (FHe) setting,
partial pressure of oxygen (PO2), and an oxygen limit index
(OLI) representing the cumulative effect of a diver’s
exposure to elevated PO2s (the theoretical “CNS clock”) as a
bar graph
• Through a combination visible alarms, the NiTek X helps to
alert the diver to a number of possibly hazardous situations
including: violation of ascent rate, no-decompression state,
and whether mandatory decompression stops are necessary
or if the diver has ascended above a mandatory stop ceiling.
Nitrox specific warnings occur when the diver approaches or
exceeds a user-preset limiting PO2 (1.4 or 1.6), or when