User guide

Using the NiTek Trio
NiTek Trio Dive Computer User Manual v1.2 17
(4) Maximum operating depth (MOD) for PO2 setting: This is the
safe operating depth (maximum) for the mix selected. This is
based on the limiting PO2 factor you have selected.
Additional options and settings that can be selected include:
• Dive safety factor
• Dive profile sampling rate
• Salt or fresh water use
• Maximum depth alarm
• Maximum time alarm
• Metric or Imperial units of measurement
These are described in the following paragraphs.
To enter Dive Option Set and Display:
1. Repeatedly press Mode until “DIVESET” is displayed at the top of
the screen.
2. Using the topics that follow, set up your desired dive option
settings.
3. If you want to exit DIVESET mode, press and hold Mode for 1 to
2 seconds to return to time mode.
Setting Mix1, Mix2 and Mix3 percentages
You must set the breathing mix you plan on using on your dive. Mix1
is considered the first breathing gas you plan on using during a dive,
and Mix2 and Mix3 are considered the second and third breathing gases
you are using on a dive.
• Mix1, Mix2 and Mix3 can be set for 21 to 99 percent oxygen
Note: If you only plan on using one mix on your dive, you only need
to set Mix1.
To set Mix1, Mix2 and Mix3 percentages:
1. Repeatedly press Mode until “DIVESET” is displayed at the top of
the screen.
2. Press Select and either “dive” or “gage” is blinking on the screen
and along the bottom of the display.
3. Press Set to select “dive” mode, if not already in that mode.
“DIVE” will continue to flash.
4. Press Select once to select the mix1 PO2 field.
5. Press and release Set to increase the PO2.
The PO2 will increase from 1.0 to 1.6 and then repeat.
6. Press Select again to select the mix1 percentage field.
7. Press and release Set to increase the percentage.