User guide

Using the NiTek Trio

44 NiTek Trio Dive Computer User Manual v1.2

Surface mode (Upon Surfacing From a

Dive)

Once you surface from a dive, the NiTek Trio automatically switches to

time mode, with other information displayed on the screen that pertains

to the dive you just completed. This includes:

• Current temperature

• Desaturation time *

• Surface interval time

• No-fly symbol

• Nitrogen (N2) bar graph *

• Oxygen limit index (OLI) bar graph *

* not shown in “Gage” mode

This additional information is displayed on the screen until the NiTek

Trio calculates that it is no longer needed or after 24 hours have passed

since the last dive.

Note: If you are making repetitive dives, you need to pay attention to

your surface interval and use it in conjunction with plan mode. This

ensures that you stay within no-decompression limits.

Note: Unless prior dives that day have been conducted on air (FO2 of

21 percent), the NiTek Trio will reset the gas mixture on following

dives to an FO2 of 99 percent if the surface interval is 10 minutes or

longer. Please be certain to reset your gas mixture between dives.

NiTek Trio showing (1) surface interval time, (2) O2 and (3) N2

bar graphs (4) desaturation time, and (5) no-fly symbol.

Surface mode :

(1) Surface interval time: This is the amount of time you have spent

on the surface since your last dive if there is residual nitrogen present

from a previous dive. It can display up to 24 hours of surface interval

time.