Lesson 1, Topic 1
In Progress

# Dive Computer

### FUNCTIONS

Descending from the decompressimeters, we can say that the dive computer behaves like a “table calculator”. Basically, the dive computer brings together the functions of profundimeter, clock and dive table and is permanently measuring depth, counting dive time and doing calculations according to the algorithm on which the table is based (Module 13-Tables).

### FEATURES

With the advances of electronics, in addition to the fundamental indications during diving, dive computers bring together all the functions already found in electronic profundimeters and some other indications, such as the waiting time to be able to fly, audible warnings, blocking of the data when there is a gross error that configures an accident hazard, etc.
Some models allow the connection to a computer, transmitting all the data stored during the dive, allowing to analyze the profile of the dive performed. A set of information that simplifies the task of divers.

IT IS VERY IMPORTANT TO READ CAREFULLY THE INSTRUCTION MANUAL THAT IS SUPPLIED WITH EACH APPLIANCE BEFORE USE, ONCE THE MANIPULATION, FUNCTIONS AND READING OF THE INFORMATION ON THE PANEL MAY DIFFER FROM MODEL TO MODEL.

YOU MUST ALSO PAY CLOSE ATTENTION TO BATTERY STATUS (LOW BATTERY WARNING) TO AVOID RISK OF COMPROMISING A DIVE

### DIVERS CMAS ONE STAR DIVER

For CMAS One Star Diver divers, it is essential that the dive computer has the following functions:

• Depth at every moment of the dive.
• Maximum depth reached.
• Dive time elapsed at any given time.
• Total dive time.
• Dive time available, no mandatory decompression stops.
• Alarm when disrespecting the ascent speed.

### DIVING COMPUTERS WITH TRANSMITTER

These dive computers also allow you to make air management available by placing an equipment called a transmitter, which is placed in a high pressure output directly on the first floor of the regulator. We have gained the features of:

• The air pressure inside the bottle.
• The diver’s air consumption.
• The dive time available, depending on the depth and air.

There is also other information available by the device after the dive is finished:

• The surface range.
• The waiting time until you can fly.
• The time that is left for the user to reach the normal nitrogen saturation state.
• The time and depth limit in a successive dive, depending on the surface range (Module 13 – Tables, the meaning of these functions will be clarified).

The diver should always take the tables, so as not to be caught off guard in case of computer failure

### RECOMMENDATIONS

With such a wide range of information fundamental to the safety of the diver, the computer is a precious instrument, so the diver should have a habit of consulting him with some frequency.

The Dive Computer can be used on the wrist or installed on a console, in conjunction with other instruments.

THE COMPUTER SHOULD NEVER BE BORROWED AFTER IT HAS BEEN USED, BECAUSE THE RECORDED DATA IS RELATED TO THE IMMERSIONS PERFORMED BY YOUR USER

### MAINTENANCE

Being a precision device should be treated with the utmost care, and should be protected from shocks, falls or any other mechanical aggression. The computer should be washed in fresh water at the end of each dive, dried with a cloth and stored in a safe place.