Using A Dive Computer

The previous discussions about dive tables and computers included a lot about diving with computers. Keep these points and procedures in mind when you use a dive computer:
1. Computers are sophisticated calculators with depth gauges and timers that calculate theoretical nitrogen in the body. They're no more or less valid than dive tables and they don't track anything physical in your body. The recommendations for conservative diving with tables apply to computer diving.

2. Don't share your computer. Each diver needs an individual computer. A computer tracks theoretical body nitrogen

In this subsection on Special Dive Table and
Computer Procedures, you learned: only an emergency procedure.
. You should make a safety stop at the end of.
. For recreational divers, decompression is.
. Virtually all dives (except when an emergency prohibits it).
. Diving at an altitude greater than 300 metres/1000 feet.
. A safety stop is a pause in your ascent between 3 and 6 metres/10 and 20 feet for three minutes or longer.
. Follow the recommendations for flying after feet for diving conservatively, and stay up to date with the most current recommendations.
. Plan cold/strenuous dives with the RDP as though the depth were 4 metres/10 feet deeper than actual. With a computer, be conservative using the most appropriate method for your computer.
. Consider a safety stop mandatory if you dive deeper than 30 metres/100 feet or reach any limit on the RDP or your computer as it rises and falls with each dive and surface interval, so it must stay with one diver for the entire dive day - you can't swap between dives. You can't share a computer within a buddy team either because it tracks depth quite closely. It will only be accurate for the diver wearing the computer.

3. Follow the most conservative computer. Surface or ascend when either computer - yours or your buddy's - approaches its no decompression limit. If you follow the least conservative. you're in effect sharing that computer, which you shouldn't do.

4. Don't turn your computer off between dives. Most won't let you, hut if you take out the battery or shut the computer down, it loses its memory of your previous dives and your residual nitrogen. You'll have to allow all residual nitrogen to leave your body before resuming use of the computer. Your computer will shut it self when it calculates no significant residual nitrogen remaining.

Page 1 > 2