Dive Rite Nitek Duo User's Guide download pdf (Page 30)

Using the NiTek Duo

26 NiTek Duo Dive Computer User Manual

Dive computer mode

Dive computer mode is automatically entered when the computer

enters the water. It begins performing its dive calculations once

you descend below 5 feet (1.5 meters).

Caution: Prior to diving, always check to ensure that the FO2

settings are correct and that the computer is not in FO2 default.

While in diving mode, the computer calculates and displays

information about your dive and prompts you with safety stop

information and warnings if needed.

While underwater, there are two screens you can toggle between

and you can switch from mix1 to mix2 when needed. You can

also activate the back light feature.

Primary underwater screen

When you enter the water, the primary screen shows your depth,

remaining no-decompression limit, dive time, PO2 for selected

mix, N2 and O2 bar graphs, and the ascent rate bar graph.

(1) Remaining no-decompression limit (NDL): This is the time

that is remaining (in minutes) before you reach the no-

decompression limit. This NDL time limit increases when you

ascend and decreases when you descend.

(2) Dive time: This is the time spent (in minutes) underwater,

measured from the time you descended below 5 feet (1.5 meters).

(3) O2 (OLI) bar graph: This is the oxygen limit index (OLI)

that calculates the cumulative effect of your exposure to elevated

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Dive Rite Nitek Duo User's Guide Page 30