Gas meter with low power consumption mode

G - Physics – 01 – F

Patent

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Details

G01F 15/00 (2006.01) G01F 1/66 (2006.01) G01F 15/06 (2006.01) G01F 15/075 (2006.01) G06F 1/32 (2006.01) H02J 7/00 (2006.01) H02J 7/32 (2006.01) H02J 9/00 (2006.01)

Patent

CA 2372727

An electronic gas meter for measuring gas consumption by premises has one or more low power consumption modes. The gas meter switches to a lower-power consumption mode (2) in response to a predetermined number of gas flow measurements (1) below a set value. The gas meter is actuated to a higher power consumption mode (4, 5) in response (3) to a wake-up signal, an increased flow measurement, a change at a pressure regulator etc. Preferred embodiments include a power generation means generating power from the gas flow.

Ce compteur à gaz permettant de mesurer le gaz consommé dans des locaux est doté d'un ou de plusieurs modes faible consommation de puissance. Ce compteur bascule en mode faible consommation de puissance (2) en réaction à un nombre prédéterminé de mesures du débit gazeux (1) inférieur à une valeur de consigne. Le compteur est mis en mode de consommation de puissance plus élevée (4, 5) en réaction à un signal d'activation, à une mesure de débit accru, à un changement survenu au niveau du régulateur de pression, etc. Dans les modes de réalisation préférés le système comporte un générateur d'énergie produisant de la puissance à partir du débit gazeux.

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