Padi recreational dive planner pdf

This value is very important because it indicates how much Nitrogen we have accumulated in our blood and later we will use it to find out how much time it will be necessary for the nitrogen to be disposed of, even if not entirely, through our fabrics. Always continuing with the dive profile taken as an example first, now we will see after a certain Surface Interval, in which Group the table places us.

Even in this case, the procedure is similar to the previous. Then continuing to the right, assuming we decided to do a surface interval about 30 minutes, slide your finger until you find it the numerical value that includes 30 minutes of interest to us. What is this value indicating to us? As mentioned at the beginning of this article, the PIR recreational diving planner is divided into two tables each composed of two different sections.

All repetitive dives so immediately following the first one they must be planned at a depth equal to or less than the previous one and in any case must never exceed m. Still on the subject of the Minimum Surface Interval, another of the important rules tells us:. To continue we must transcribe the data of the profile in our possession. To show you how important it is to respect Surface Intervals, we will continue to plan the second dive of the day, following the data obtained from the first dive profile.

While outside the left side there are numbers in columns and refer to the depth of the new dive. Continuing the planning I decided to use as an example, a repetitive dive, always at a maximum depth of meters and for a bottom time of 38 minutes, so it is identical to the previous one.

We find our new depth, on the table sidebar, in our case they are 12 meters and we let the finger slide until you find the intersecting angle with the final Group after the surface interval relative to the previous dive.

The white box indicates the Residual Nitrogen expressed in minutes, still present in our blood. The Blue box indicates the Limit Time, beyond which we must not go with the second dive. Now look at the profile below:.

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