The most important part of your diving equipment is a cylinder. The Log Book's Cylinder tab provides you with a number of editable fields to fill in. You can define all characteristics, from the cylinder type to the differences in pressure at the beginning and at the end of your diving.

At the top of this window you have to choose the characteristics of the cylinder, its working pressure and volume.

In the Starting and Ending Cylinder pressure frame you have to choose the corresponding items included in the fields.

You will then see the pre-calculated parameters in the Surface Air Consumption frame. These parameters depend on the information you typed into the Weather tab's fields.

Note. The measuring scales for pressure can be defined in the Options module.