The no-stop limit is the most important piece of information a dive computer provides. A computer program will take into account depth and air in order to calculate this limit and offer data on when to begin the ascent or decompression stop. This information is also called the "no stop remaining" data.
Different preferences
There are several differences between different dive computers, but most do the same basic functions, such as displaying depth, tracking nitrogen loading, ascent rate, and logging the dive. Divers may choose to use one type of dive computer instead of another because it gives different NDL times. A diver may have different settings than the one 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 is designed for safety underwater. It performs calculations based upon your information. Then, it compares this information with the appropriate dive tables to determine your depth time. While you don't necessarily need to know the formulas, you should be able to identify where your dive computer is on the liberal-conservative spectrum. A liberal-leaning computer can help you maximize your bottom time and improve safety.
Display
Display screens on dive computers can be wrist-mounted, submersible pressure gauge mounted or both. They provide the information necessary to avoid decompression as well as ensure safe diving. Divers may appreciate additional features like the compass directions and water temperature. A few dive computers also allow users to download data to their personal computers, which could be very useful to accident investigators. With these features, a dive computer can prove invaluable for a number of purposes, including determining the cause of an accident.
Safety limits
Dive computers use a range of algorithms to calculate decompression times. Although acceptable DCS is between two and five percent, these numbers can vary depending on individual vulnerability and accidents. The US Navy and the commercial diving community often wish to achieve 0.1 percent mild or 0.025 percent serious DCS. A dive computer should always be able to run the decompression algorithms correctly to ensure maximum safety. However, diving with a dive computer may not be as simple as it seems.
Cost
To avoid accidents when diving, it is important to select the best dive computer. These devices use algorithms which determine how long a diver is able to stay underwater. While most diving computers have the same algorithm, every diver is unique. Divers will have different fitness levels and body compositions. Some computers will recommend more stops than others. Others will recommend more stops. You can stay underwater for longer with any dive computer, regardless of what brand.