Patent ID: 8056425

Claim:
Device for detecting an amount of fluid flowing between two points and having a gas portion, comprising: a measurement line for conducting the fluid between the two points, the measurement line including: a flow measuring unit for measuring the rate of flow of the fluid in the measurement line, a degree of filling measuring unit for measuring the degree of filling in the measurement line, wherein the degree of filling measuring unit comprises an electrode arrangement for determining electrical properties of the fluid present in the measurement line, wherein the electrode arrangement has a plurality of electrode plates which form a plate stack and determine electrical properties that vary according to the gas portion of the fluid flowing through the plate stack, an evaluation unit in a signal connection with the degree of filling measuring unit and the flow measuring unit for determining the fluid amount conveyed through the measurement line based on the measurements made by the flow measuring unit and the degree of filling measuring unit, means for stopping the fluid flow in the measurement line at least at times, and means for determining a remaining fluid amount present in the measurement line downstream of the flow measuring unit and the degree of filling measuring unit based on the results of the measurements made by the flow measuring unit and the degree of filling measuring unit.