A dive computer will provide the main piece of information, which is the no stop limit. Computer programs will use depth and air to calculate the limit and provide information on when to ascent or decompression. This data is also known "no time left"
Preferences of divers
Although there are many differences in the functions of different dive computers, they all perform the same basic functions such as tracking nitrogen loading and ascent rate and displaying the depth. Divers might choose to use a different type of computer because they have different NDL times. As a result, the recommended settings for a specific computer may be different than those prescribed for another diver. 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 helps you to stay underwater safe. It will run calculations using your information and then compare that information with the relevant dive tables to determine how long you have at deep. The calculations are not difficult to understand, but it's important to be familiar with the range of your computer's liberal-conservative bias. Liberal-leaning computers are the best for maximizing your bottom time and ensuring 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. Some computers have extra features like compass direction and temperature that may be useful for divers. Some dive computers even allow users to download their data to a personal computer, which may be helpful to accident investigators. These features make a dive computer invaluable, and can even be used to determine the cause of an accident.
Safety limits
Diver computers can calculate decompression times using a range algorithm. The acceptable DCS numbers range from 2 to 5 percent. However, individual susceptibility and accidents can affect the figures. The US Navy, commercial diving and other organizations often strive to achieve DCS levels of 0.1 percent or 0.025%. To ensure safety, a dive computer must be capable of running the correct decompression algorithms. Divers may find it difficult to use a computer to dive.
Cost
To avoid accidents when diving, it is important to select the best dive computer. These devices use algorithms to determine the maximum time a diver can stay under water. Most dive computers use the same algorithms but every diver has a different body composition and fitness level. Therefore, some machines will recommend more stops than others. Others may recommend more no-flys. Whatever dive computer choice you make, it will let you stay under water longer and decrease the likelihood of suffering from decompression sickness.