Dive Rite Nitek Duo User's Guide download pdf (Page 7)

Introduction

NiTek Duo Dive Computer User Manual 3

Features and functions

The NiTek Duo incorporates a number of important modes and

features:

• The NiTek Duo turns on automatically upon descent

• On the surface, the NiTek Duo constantly displays a

minimum of date and time

• The NiTek Duo uses easily accessible and highly reliable

push buttons instead of exposed electrical contacts

• The NiTek Duo can be programmed to monitor exposure to

two different gas mixtures during a dive. Mix1 is

programmable for mixtures ranging from air (EAN21) to

EAN50. Mix2 is programmable for mixtures ranging from

air (EAN21) to EAN99. Underwater, NiTek Duo users can

switch between mixes at the push of a button.

• The NiTek Duo is capable of functioning up to a depth of

328 feet (100 meters) when in dive computer mode and 656

feet (200 meters) when in gauge mode

• The NiTek Duo automatically adjusts for altitudes up to

19,685 feet (6,000 meters)

• The NiTek Duo displays a variety of data underwater

including: date, time of day, current and maximum depths,

no-decompression dive time elapsed and remaining, and

water temperature

• The NiTek Duo displays data specifically related to the use

of Enriched Air Nitrox (EANx) including: fraction of

oxygen (FO2) 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 of audible and visible alarms, the

NiTek Duo 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 limiting PO2 of 1.4

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Dive Rite Nitek Duo User's Guide Page 7