Through the Dive Settings Screen you make settings that pertain to particular dives, such as setting the Risk Level for the decompression algorithm, the expected exertion level for the dive, and silent or audible alerts for low gas or depth.

You can also set the desired reserve gas pressure with which you want to arrive at the surface.

The User Preferences Screen is where you set the units (metric or Imperial) you want to use, where you set the language of the display, and where you set the frequency of dive data storage for the dive log.

The Personal Info screen is where you enter your name, age, and contact information.

Age is a factor in the decompression calculations.

The Time and Date Screen is where you set the current time as well as the display preferences for time.

The Screen Brightness screen allows you to adjust the screen brightness to match ambient light conditions. Reducing screen brightness in dim light conditions will conserve power.

The Gas/ Tank Settings screens are where you would set or change Nitrox (EAN) mixes, set up alternate breathing mixes if using more than one mix on a dive, and set the Tank size.

Setting the tank size you are using on a dive will allow the Cobalt computer to accurately record your breathing rate, and will improve gas usage prediction.

Clicking Calibrate will take you to a screen where you can calibrate the compass. This is necessary when you change your geographic location significantly.

The System Information menu item links to a screen with important information about your Cobalt Computer, such as software version and serial number, as well as current sensor readings for ambient pressure, tank pressure, temperature, and battery level.

This screen is also where you can connect to PC or Mac based dive log software.