Container for pressurized fluid with electronic device for calculating and updated displaying of remaining fluid

A container for pressurized fluid having a given internal volume, comprising a fluid distribution valve comprising:

• a member for selecting the flow rate, which can be manipulated by a user between a plurality of distinct positions, each corresponding to a given fluid flow rate,
• and an electronic device comprising:
• a means for measuring pressure and temperature in order to measure the pressure and the temperature of the fluid contained in the fluid container,
• a processing means comprising at least one microprocessor which are configured to calculate a remaining fluid based the pressure and/or temperature measurements, of the position of the member for selecting the flow rate and of the internal volume of the container,
• and a display means for displaying the remaining fluid calculated by the data processing means,
• wherein:
• the data processing means are configured to:
• A) for an initial delay phase shorter than 10 minutes, starting when the member for selecting the flow rate is manipulated by the user in order to move from a first position corresponding to a first fluid flow rate to a second position corresponding to a second fluid flow rate:
• i) calculate a remaining fluid based on the position of the member for selecting the flow rate, the measurements of the pressure and temperature of the gas, and the internal volume of the fluid container, and
• ii) display a calculated remaining fluid by controlling displaying, on the display means, of a calculated remaining fluid equal to the displayed remaining fluid minus an amount of fluid that is lost during a 1 minute duration, and
• B) repeat step A) iii) throughout the initial delay phase, to display an updated remaining fluid (Ar) after a time interval of between 30 seconds and 3 minutes throughout said initial delay phase.