User guide

Using the NiTek
NiTek Dive Computer User Manual 27
Surface mode (upon surfacing from a dive)
Once you surface from a dive, the NiTek automatically switches
to surface mode. In addition to the normal information displayed
in surface mode such as time of day, there is other information
that is displayed that pertains to the dive you just completed.
This includes:
• Desaturation time
• Surface interval time
• Nitrogen (N2) bar graph
• Oxygen limit index (OLI) bar graph
This additional information is displayed on the screen until the
NiTek 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.
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(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.
(2) Desaturation time: This is the amount of time, expressed in
hours and minutes, that must pass before the residual nitrogen
levels drop to a point where subsequent dives are treated as a
single (non-repetitive) dives.