Using the NiTek Plus
NiTek Plus Dive Computer User Manual
19
2. Press Lock.
3. Press Select until the sampling rate “number” is flashing.
4. Press Set to toggle between 15- and 30-seconds.
5. When finished press Lock.
Setting the computer for metric or Imperial
operation
The NiTek Plus can calculate and give you values in Imperial
units or metric units. When in Imperial, depth values are
expressed in feet and temperatures are expressed in Fahrenheit
(°F). When in metric, depth values are expressed in meters and
temperatures are expressed in Celsius (°C).
To set for metric or Imperial operation:
1. Press Mode until the arrow points to Plan at the bottom of
the screen.
2. Press and hold Lock for 5 to 6 seconds.
The computer beeps and changes between feet (FT) and
meters (M).
Understanding FO2 default
In your entry-level Enriched Air Nitrox training, you learned that
among the greatest risks Nitrox (EANx) use poses is CNS
oxygen toxicity. One of the ways CNS oxygen toxicity can occur
is when Nitrox is breathed at depths where the partial pressure of
oxygen (PO2) exceeds safe limits.
The NiTek Plus is designed to help divers avoid such situations
by presenting information and warnings regarding current PO2
levels and cumulative exposure to elevated PO2s. To do so, the
NiTek Plus must be set to an FO2 that accurately matches the
concentration of oxygen in the gas mixture being breathed.
Similarly, the NiTek Plus is designed to help divers avoid
decompression illness by providing no-decompression limits
(NDLs) or mandatory decompression stop information. Again, to
do so, the NiTek Plus must be set in a manner that accurately
matches the concentration of nitrogen being breathed.
