DEVICE, INSTALLATION AND METHOD FOR SUPPLYING GAS

Gas supplying device including a changeover unit, the changeover unit including two inlets connected to two distinct pressurized gas sources, and one outlet connected to a user member, the changeover unit including an automatic and/or manual switchover mechanism making it possible to switch the supply of gas to the user member to one source or to the other source so as to ensure continuity of supply, the device including a pressure sensor measuring the gas pressure at the outlet and/or at least one inlet of the changeover unit, wherein the device includes an ambient temperature sensor and an electronic data processing and storage member, the electronic data processing and storage member receiving the measurement from the ambient temperature sensor and the measurement from the pressure sensor and being configured to calculate, the corrected variation in gas pressure which is not caused by the variation in ambient temperature.