Pretty much all resort recreational dives are worked out for no decompression. Why do divers wear computers for such dives? I'm not for or against it. Just never used one, so what is the benefit for no deco diving?
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Are dive computers overkill for most recreational divers?
- Thread starterandrewmoquin
- Start date
Thread Status: Hello
, There was no answer in this thread for more than 60 days.
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Most dive computers will give you 16 -20 min of no-stop time at 30m , easy enough to work out with tables , but they really come into their own for multi-level and repeat diving .
Also at glance you can check the time , depth , dive time , temp' , remaining no-deco' time .
If you use nitrox most computers can be set to the correct mix .
Alarms can be set for depth and time .
They monitor ascent rate , sounding an alarm and giving extra deco' stop if you ascend too fast .
All have a built-in requirement for a 3 min safety stop .
If you do happen to go into deco' the computer works out the safety stop time needed .
So , no you don't need a computer they just make diving much simpler .
Say it's the forth dive of the day , your on nitrox , it's a wall dive with a depth down to 2000m , you want to go as deep as possible and stay there as long as possible , but not incur any deco' time .
You could work this out with tables , on a tossing boat , with a brain scrambled from lack of sleep and the three previous dives or just strap on the computer and jump in with everyone else .
Also at glance you can check the time , depth , dive time , temp' , remaining no-deco' time .
If you use nitrox most computers can be set to the correct mix .
Alarms can be set for depth and time .
They monitor ascent rate , sounding an alarm and giving extra deco' stop if you ascend too fast .
All have a built-in requirement for a 3 min safety stop .
If you do happen to go into deco' the computer works out the safety stop time needed .
So , no you don't need a computer they just make diving much simpler .
Say it's the forth dive of the day , your on nitrox , it's a wall dive with a depth down to 2000m , you want to go as deep as possible and stay there as long as possible , but not incur any deco' time .
You could work this out with tables , on a tossing boat , with a brain scrambled from lack of sleep and the three previous dives or just strap on the computer and jump in with everyone else .
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I was brought up using tables but now always use a computer. To me they're THE essential bit of kit.
Unless you never go beyond 35 foot then you are always in a deco situation. You might be in a no stop situation but you are always in a deco situation. Nitrogen is in your blood. You can never be certain to be in a situation where you are at a fixed depth for a fixed time as tables use. Computers constantly calculate your remaining no stop time or deco time as you go.
I do 3 tanks per 8 hour day at depths from 20 feet to 100 feet with multiple bounce dives and use a computer to stick to no stop times, although I often "press off" for a few minutes just in case. No tables allow you to plan or execute such dives.
Some of the early computers had safety issues but you're probably more likely to be struck by lightning than getting bent from correctly using a dive computer.
Go buy one and don't dive without it IMHO anyway.
Dave.
Unless you never go beyond 35 foot then you are always in a deco situation. You might be in a no stop situation but you are always in a deco situation. Nitrogen is in your blood. You can never be certain to be in a situation where you are at a fixed depth for a fixed time as tables use. Computers constantly calculate your remaining no stop time or deco time as you go.
I do 3 tanks per 8 hour day at depths from 20 feet to 100 feet with multiple bounce dives and use a computer to stick to no stop times, although I often "press off" for a few minutes just in case. No tables allow you to plan or execute such dives.
Some of the early computers had safety issues but you're probably more likely to be struck by lightning than getting bent from correctly using a dive computer.
Go buy one and don't dive without it IMHO anyway.
Dave.
Since this question is in the Freedive forum, I assumed it was about freedive computers such as the Suunto D3. If so, I find mine to be almost indispensable.
But I guess its really about scuba computers.
But I guess its really about scuba computers.
