When planning a dive with a computer, what mode should a diver use to understand depth limits?

Using plan mode or no-stop scroll mode on a dive computer is essential for understanding depth limits during dive planning. This mode allows divers to preview their dive profile, including the maximum depth they can reach within the limits of no-decompression diving. By visualizing how long they can stay at various depths without needing to perform decompression stops, divers can effectively plan their dives to stay within safe parameters.

In plan mode, the computer typically provides information about the no-decompression limits based on the planned depth and time, which helps divers make informed decisions and avoids exceeding safe limits during their dive. This proactive approach contributes to safer diving practices by allowing divers to adjust their profiles before entering the water.

Other modes, such as emergency ascent mode or decompression mode, serve different purposes related to safety and divers' responses to emergencies or exceeding no-decompression limits. However, for the specific objective of understanding and planning depth limits, the plan mode or no-stop scroll mode is the most appropriate choice.