A dive computer will provide the main piece of information, which is the no stop limit. The computer program will calculate the no-stop limit by taking into account air depth and air volume. It will also provide data about when to start or stop decompression. This information is also known by the "no remaining stop time".
Divers' 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. Divers may choose to use a different type of computer than what is recommended. Therefore, it is important to plan a dive before purchasing a dive computer. Also, compare various models before deciding which one is best for you.
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. If you want to maximize your bottom time while building safety in the process, a liberal-leaning computer will be the right choice.
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. Some dive computers also offer extra features, such as compass direction and water temperature, which may be important to divers. Diver computers may even let users download their data to a personal PC, which can prove helpful for accident investigators. These features can make a divecomputer invaluable, especially for investigating the cause of an accidental accident.
Safety limits
Diver computers employ a variety of algorithms to calculate decompression times. The acceptable DCS levels range from two to five percentage, but they can vary depending upon individual susceptibility or accidents. The US Navy and commercial divers often want to achieve 0.1 percent mild DCS or 0.025% serious DCS. To ensure safety, a dive computer must be capable of running the correct decompression algorithms. Diving with a dive computer is not always easy.
Cost
To avoid accidents when diving, it is important to select the best dive computer. These devices use algorithms to determine how much time a diver can stay underwater. Although most computers use the same algorithms, each diver's body composition and fitness levels will be different. Some machines will recommend a greater number of stops than others. Others will recommend a greater number of no-flys. You can stay underwater for longer with any dive computer, regardless of what brand.