User guide

Using the NiTek X

NiTek X Dive Computer User Manual v1.1 12

Surface Mode

Surface mode is the NiTek X’s default-screen mode, with either “O/C”

or “C/C” displayed on the screen (depending on settings). The

computer returns to this mode automatically upon surfacing from a dive

and from other modes when two to three minutes of inactivity have

passed.

After several minutes of inactivity, the NiTek X will go into its “sleep”

mode to conserve battery usage. To wake from sleep mode,

momentarily press either button.

Note: O/C or C/C refers to either Open-Circuit or Closed-Circuit, and

can be switched by simultaneously holding buttons A and B for two to

three seconds.

The NiTek X may display additional information concerning time/date,

mixture settings, alarm settings, exposure to nitrogen and oxygen,

desaturation time, and surface interval time. These items are covered in

“Surface mode (Upon Surfacing From a Dive)” Dive Option Set and

Display mode and “Altitude Operation.”

(1) Date: This is the month and day. The first digit is the month and the

second digit is the day. For example, 1-24 represents the twenty-fourth

day of January.

(2) Time of day: This is the time of day expressed in hours and

minutes. Time can be displayed in 24-hour (military) format or 12-hour

format. When in 12-hour format, an AM or PM appears on the screen.

Entering Surface mode from another mode

When you are using other modes, it is very easy to return to Surface

mode. Simply press and hold button A for two to three seconds or

repeatedly press button A until O/C or C/C is displayed.

Simultaneously pressing and holding button A and button B for two to

three seconds will toggle between the two modes.