What is the primary purpose of a dive computer when using enriched air nitrox?

The primary purpose of a dive computer when using enriched air nitrox is to calculate nitrogen loading. This function is essential because enriched air nitrox contains a higher percentage of oxygen and a lower percentage of nitrogen compared to regular air. This alteration affects how nitrogen is absorbed and released by the body during and after a dive.

The dive computer continuously monitors depth and time, allowing it to apply algorithms that account for the specific gas mixture used. It helps divers to manage their nitrogen exposure carefully and avoid the risks of decompression sickness, making it a critical tool for planning and executing dives safely. By tracking nitrogen loading, the dive computer also helps divers make informed decisions about ascent rates and surface intervals to minimize the risk of decompression sickness.