A computer dive computer supplies the only piece of information that is important: the no-stop limitation. A computer program will consider depth and air to determine the limit. The program also provides data on when to ascend or stop. This data is also known to be the "no stopping time remaining".
Preferences of different people
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. The settings that are recommended for one computer might not be appropriate for another. It is important to plan your dive before purchasing a computer, and to test them out before you decide which model will be best for you.
Functions
A dive computer is designed for safety underwater. 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 computer can help you maximize your bottom time and improve safety.
Display
A dive computer's screen can be worn on the wrist or attached to a submersible pressure gauge. It provides all necessary information to prevent decompression and ensure safe diving. Divers may also find useful extra features in some dive computers, such as the compass direction or water temperature. Diver computers may even let users download their data to a personal PC, which can prove helpful for 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
Diver computers employ a variety of algorithms to calculate decompression times. The acceptable DCS numbers range from 2 to 5 percent. However, individual susceptibility and accidents can affect the figures. The US Navy as well as commercial divers want to see 0.025 percent of serious DCS. To ensure maximum safety, a divecomputer must always be capable of correctly running decompression algorithms. But diving with a computer can be more complicated than it looks.
Cost
Diver accidents can be prevented by choosing the correct computer for you. These devices use algorithms in order to determine how long a diver will be able stay underwater. While the algorithms for most dive computers are very generic, divers will have their own unique body composition or fitness levels. Different machines will recommend different stops. Others may recommend more no-flys. Whichever dive computer you choose, it will help you stay underwater longer and reduce the risk of decompression sickness.