The no-stop limit is the most important piece of information a dive computer provides. A computer program will factor in depth and air, and calculate the limit. This program will then provide data on when to decompress or begin ascent. This information is also called the "no stop remaining" data.
Preferences of divers
Diver computers come in many different forms, but they all have the same basic functions: tracking nitrogen loading, logging dives, and displaying depth. Divers might choose to use a different type of computer because they have different NDL times. Divers may choose to use a different type of computer than what is recommended. As such, it's important to plan a dive before buying a dive computer and to compare different models before deciding which one will work best for them.
Functions
A dive computer helps you to stay underwater safe. The computer runs calculations on your data and compares it with the dive tables to calculate how long you have at depth. Although you don't need to be an expert in math to understand the calculations, it is helpful to have a general idea of where your computer falls within the liberal-conservative spectrum. A liberal-leaning dive computer is the best option if you want maximum bottom time and safety.
Display
Whether wrist-mounted or mounted on a submersible pressure gauge, a dive computer's display screen provides the necessary data to avoid decompression and ensure a safe dive. Divers may appreciate additional features like the compass directions and water temperature. Some dive computers even allow users to download their data to a personal computer, which may be helpful to accident investigators. A dive computer is able to perform many functions, including helping to determine the cause of an incident.
Safety limits
Diver computers can use many algorithms to calculate the decompression time. Although acceptable DCS is between two and five percent, these numbers can vary depending on individual vulnerability and accidents. The US Navy, commercial diving and other organizations often strive to achieve DCS levels of 0.1 percent or 0.025%. To ensure maximum safety, a divecomputer must always be capable of correctly running decompression algorithms. Dive computer diving may not be as easy as it appears.
Cost
To avoid accidents when diving, it is important to select the best dive computer. These devices use algorithms in order to determine how long a diver will be able stay underwater. Most dive computers use the same algorithms but every diver has a different body composition and fitness level. Some machines will recommend a greater number of stops than others. Some machines will recommend more no-flys than others. Whichever dive computer you choose, it will help you stay underwater longer and reduce the risk of decompression sickness.