eHow launches Android app: Get the best of eHow on the go.

Fact Sheet

What Are Dive Computers?

Contributor
By Mark Orwell
eHow Contributing Writer
(0 Ratings)

Decompression sickness is something that scuba divers need to worry about. During a dive, pressure builds up around the diver. The deeper the dive, the more pressure twill build up. If a diver ascends too rapidly, nitrogen bubbles can occur in the blood and cause serious health damage. In order to help prevent this, dive computers are used. These can calculate a number of different factors in order to tell a diver how much time he has to ascend.

    Function

  1. Dive computers can read the pressure around a diver, the elapsed time of the dive and ascension, and can warn a diver when she is ascending too quickly. Some dive computers also read the temperature of the water and the amount of air left in a diver's oxygen container.
  2. Audible Warning

  3. Since divers cannot be expected to view their dive computers all the time, an audible warning is given at certain times. This occurs during missed decompression spots, exceeded oxygen toxicity limits, and when maximum operation depth has been reached.
  4. Identification

  5. Dive computers look like watches and are worn on the wrist. They display everything digitally and are composed of materials able to withstand high pressures.
  6. Significance

  7. Dive computers allow divers to plan even the most complicated dives. They greatly reduce the risk of harm that could otherwise occur if divers do not keep track of time, oxygen levels or rates of ascent.
  8. Warning

  9. Many divers perform dives well out of the range of their expertise by relying heavily or completely on the dive computer. If a dive computer stops working during a dive, the diver must know how to safely ascend on his own.
Subscribe

Post a Comment

Post a Comment Post this comment to my Facebook Profile

Related Ads

Get Free Sports & Fitness Newsletters

Copyright © 1999-2009 eHow, Inc. Use of this web site constitutes acceptance of the eHow Terms of Use and Privacy Policy .   en-US Portions of this page are modifications based on work created and shared by Google and used according to terms described in the Creative Commons 3.0 Attribution License. † requires javascript

eHow Sports and Fitness
eHow_eHow Sports and Fitness