Calculate top off mixtures for Trimix and Nitrox

[jbscuba]

Does anyone have a program to calculate top off mixtures for existing Trimix or Nitrox and also gives equivalent narcotic depth and PO2's? I am using a Nitrox stick so I want to be able to do top off using the stick versus PP filling method. If there is no program does anyone have the match calculations or excel files?

 

[dannobee]

If you have an iphone, get ideco. It has all you need.

 

[giles45shop]

I would suggest getting a copy of VPlanner, it has a very nice tank mix/top off program included. I haven't investigated whether it has PO2 data, since I just look it up in a table, but I do know you can set your PO2 limits while working up your plan and it will tell you if you exceeded them.

John

 

[Blue Abyss]

Oxygen Hackers Guide has all of the math you need. If I remember correctly there are instructions on how to calculate top ups using gas other that air.

 

[GrimSleeper]

DSAT do a very nice piece of gas-blending software that will calculate top-ups and give you ENDs, EADs, MODs etc. I'm sure PADI will happily sell you a copy...

 

[kwflfire]

here's some easy to use calculators

Scuba Diving - New Jersey & Long Island New York - dive Wreck Valley - Gear & Training - Gas Calculators

 

[Rhone Man]

If all else fails, I wrote an Excel spreadsheet which can do this for you. If you want it, PM me and I will e-mail it to you.

 

[Docc]

+1 for Ideco

 

[Gen San Chris]

The Padi one works well!

 

[jbscuba]

Thanks Danobee, I have a blackberry by Verizon. I am not sure if ideco wprks with it but I will check.