Scubadivingfanclub logo

How deep is 3 bars

by thenewage

How deep is 3 bars and could you use a watch that is limited to 3 bars for any serious diving?

3-Bars-3-ATM-Watch

ScubaDivingFanClub Answer:

The answer to your question is: 3bars = 20 meters or 66 feet. And we will not recommend a 3 ATM/BAR watch for serious diving. Now we will explain how we came up to this response.

A French philosopher and scientist named Blaise Pascal demonstrated that the pressure applied by the atmosphere at sea level is equal to the pressure applied by approximately 10 meters / 33 feet. It means that for each 10 meters / 33 feet of sea water, we will have to add 1 atmosphere.

When doing calculation on depth and the pressure we have to take into account that at the surface there is already one atmosphere. And also to get to the measuring system you feel comfortable with you have to know that 1 ATM=1.01 BAR and to make it more simple 1ATM=1BAR.

Bars-ATM-Depth

Continuing with an answer to your question - to take a watch for recreational diving, these watches must be at least minimum 50M/164F or 6 ATM/BAR water resistant.

But I have a little story for you: I was doing a deep dive (30M/100F) with students doing PADI Advanced Open Water, and my diving watch had no battery. I needed a watch just to take the time of the dive and for the mandatory 3 minutes safety stop.

Going to work that day I decided to buy a cheap 100 meters digital watch just until I replace a battery in my diving watch.

Everything went well on the deep dive until we started the safety stop, I looked at that cheap peace of ...100M watch and the crystal was gone, the watch filled up with water and I had to rely on one of my student's watch for the safety stop and dive time.

Most watches have a 200 meters water resistance. I guess the following proverb applied to my purchase: "you get what you pay for".

Thank you for visiting our web site. We hope this answers your question and feel free to send any additional questions or concerns.

Have fun diving, Sincerely:
ScubaDivingFanClub
Where Scuba Divers share their passion.

-------------------------------------------------

Some corrections have being made

We would like to thank our "Anonymous” visitor for his/her comment (see comment below). Yes there is some misunderstanding when we were trying to explain Blaise Pascal demonstration of pressure applied by the atmosphere. We will try to clarify and make it easier for our visitors to understand.

A French philosopher and scientist named Blaise Pascal demonstrated that the pressure applied by the atmosphere at sea level is equal to the pressure applied by approximately 10 meters / 33 feet. It means that 10 meters / 33 feet will be equal to 1 atmosphere.

Statement:

It means that 10 meters / 33 feet will be equal to 1 atmosphere.


Latest Articles

Our latest post to keep you updated.


Diving in Exuma, The Bahamas.
with 365 cays and islands is the perfect place for relaxation and diving.



The Bahamas
known for its big tourism industry offering big hotels, nice beaches and clear waters.


Diving in Kalymnos, Greece.
Diving in Kalymnos Island, Greece. known as the "Sponge-divers' island.


Diving in Paphos, Cyprus.
Paphos is one of the oldest cities in the world which has seen rise and fall of many kingdoms.

















Clarification:

It means that for every additional 10 meters / 33 feet of sea water, we will have to add 1 atmosphere.

Since at sea level, 0 meter / 0 feet = 1 ATM/BAR.
At 10 meters / 33 feet = 2 ATM/BAR
Hence, at 20 meters / 66 feet = 3 ATM/BAR

Hope this helps.

ScubaDivingFanClub
Where Scuba Divers share their passion.


Visitor's comments

May 07, 2010
Your math sucks! 3x33 does not = 66. haha

by: Anonymous

Your answer to his question that 3 bars= 66 feet is wrong when you state in " How you got this" it shows 1 bar / ATM (atmosphere) equals 33 ft. Well 3 ATM multiplied by 33 ft as shown in your shart below equals 99ft., not 66ft.

Jun 02, 2010
Clarification
by ScubaDivingFanClub.com

Clarification:
It means that for every additional 10 meters / 33 feet of sea water, we will have to add 1 atmosphere.
Since at sea level, 0 meter / 0 feet = 1 ATM/BAR.
At 10 meters / 33 feet = 2 ATM/BAR
Hence, at 20 meters / 66 feet = 3 ATM/BAR

Hope this helps

Dec 06, 2010
To the guys who didn't get it. (who said your math sucks)
by: Anonymous


Actually he has it right. At Zero(0) depth as in when your head is above the water you are at one(1) Atmosphere. Once you go down 10 meters/33 feet that is equivalent to having another atmosphere above you, adding up to a total of two(2) atmosphere. When you see the chart (See Below) maybe it'll help me explain better.
So 3 Bars = 20m/66F = 3 ATM/BAR

Bar Depth Pressure
1 0 1 ATM/BAR
2 10M/33F 2 ATM/BAR
3 20M/66F 3 ATM/BAR
4 30M/99F 4 ATM/BAR
5 40M/131F 5 ATM/BAR
6 50M/164F 6 ATM/BAR
7 60M/197F 7 ATM/BAR
8 70M/231F 8 ATM/BAR
9 80M/264F 9 ATM/BAR
10 90M/297F 10 ATM/BAR
11 100M/330F 11 ATM/BAR
12 150M/495F 16 ATM/BAR
13 200M/660F 21 ATM/BAR



IMPORTANT ARTICLES


Russian-tank underwater videoBest Diving Cameras | Diving Information
These are currently the best cameras for diving in our opinion and that of many other divers. Read More.
Russian-tank underwater videoRussian Tanks in Cuba | Diving Video
Some fun diving in Guardalavaca, Cuba. Where we had the pleasure to dive around some Russian tanks and other equipments. Read More.
Barrier_Reef The Coral Reefs | Diving Information
Learn the types of coral reefs, how they live and some problems and solutions to save the corals and the underwater world. Read More.
Scuba Diving Proverb. Afraid of Diving | Diving Information
Many people are afraid of diving and are not willing to try this wonderful pastime. Read More.
Diving Mistakes. 12 Common Diving Mistakes | Diving Information
12 common diving mistakes that divers do and can put themselves or others at risk. Read More.
basic gear. Necessary diving equipment | Diving Equipment
We recommend that you start slow, so let's just see what you must have. Read More.
First time divers. First Timers | Diving Information
Some of you are content with just snorkeling, but your friend or partner pushes for scuba diving. Read More.
diving signal Diving Signals | Diving Information
Our demostration of Diving signals that were created for better understanding between divers. Read More.
Diver Equalizing Ears Diving Risks | Diving Information
The best way to keep divers safe is to know the diving risks underwater. Read More.
basic gear. Equipment Maintenance | Diving Equipment
Well maintained equipment is not only safer to use, but it will last longer and maintain its value. Read More.
First regulator, the aqualung Diving History | Diving Information
Food was out our reach and there was a desire to go deeper in the water. Read More.
Diving quote. Diving Quotes | Diving Gallery
Some of our scuba diving quotes. Read More.




Diving logos on tshirtsDiving logos on tshirts

Discount--From diveshades.com Type code: FACEBOOK15 and you will receive 15% off of your order!

Diving Wallpaper.

Free Wallpapers | Diving Gallery
Free wallpapers for your desktop and modile phone. Read More.







Our Contributors

How to become a contributor