Pure Bühlmann mode – surface screens
Main surface screen

Surface configuration screen

Screen containing links to the device’s configuration / information submenus.
Unit setup

Device and user identification information.
Gas setup

Gas table configuration screen and selection of currently used gas. There are 7 trimix gases available in OC TECH mode.
Dive setup

Configuration screen for dive parameters.
Dive Planner

Screen of the dive planner – a function that calculates the decompression / optimal gas selection. It enables calculating decompression stops and checking the correctness of gas selection.
PPO2 Setup

Logbook

List of dives logged by the device.
Logbook – dive details

Screen with detailed information about the selected dive.
Logbook – dive graphs

Graphs showing the dive process (depth, partial pressure of oxygen and temperature) over time.
System setup

Device parameters configuration screen.
Computer mode

Screen for selecting the operation mode of the device.
Compass calibration

Calibration of digital compass built into the device.
Firmware upgrade

Device bootloader used to update the software.
Surface compass

Display of current digital compass indications and locked course.
Total runtime of inserted battery

Information of the time the device is working on the last inserted battery.
Pure Bühlmann mode – underwater screens
Main underwater screen

Underwater configuration screen

Device parameters configuration screen. In underwater mode, the sub-menu buttons (MODE, COMPASS CALIBRATION, FIRMWARE UPGRADE) are inactive. There are seven tmx gas mixes available in OC TECH mode.
Underwater gas setup

Gas table configuration screen and change of currently used gas.
Underwater compass

Display of current digital compass indications and locked course.