Abstract: The present disclosure relates to a magnetic-inductive flow meter including a measuring pipe having a measuring pipe body which electrically insulates portions thereof. A device generates a magnetic field that penetrates the measuring pipe body and detects an induced voltage in the medium, which is a function of a velocity of flow. A monitoring device detects damage to the measuring pipe body and comprises at least one electrically conductive conductor. The conductor is separated from the measuring pipe volume by a region of the measuring pipe body when the measuring pipe body is intact. The monitoring device comprises a measuring circuit electrically connected to the conductor and is designed to measure values of a measured variable which is dependent on an impedance of the conductor. The measuring circuit then compares each of the measured values with a reference value or a target value range.

Abstract: The present disclosure relates to a magnetic-inductive flowmeter, comprising: a measuring pipe for conducting a medium, wherein the measuring pipe comprises an electrically insulating measuring pipe body; a device for generating a magnetic field that penetrates the measuring pipe body; a device for detecting an induced voltage, which is a function of a flow rate; a reference electrode; an electrode assembly for detecting damage to the measuring pipe body, wherein the electrode assembly is electrically insulated from the reference electrode and/or the medium by the measuring pipe body; a measuring circuit configured to measure a variable that is a function of an electrical impedance between the electrode assembly and the reference electrode.

Abstract: The present disclosure relates to a device with an electric load and a replaceable electric energy store. The energy store has at least one first storage unit with a first initial energy quantity and at least one second storage unit with a second initial energy quantity, wherein an electronic circuit is designed to actuate the first storage unit or the second storage unit according to an algorithm. By actuating the first storage unit or the second source unit, the energy supply of the device is ensured by the respective storage unit, and by actuating the first storage unit or the second storage unit, it is ensured that when a remaining energy quantity or an applied energy quantity of one storage unit is low, the respective other storage unit has a remaining energy quantity of at least 10% of a total energy quantity.

Abstract: The present disclosure relates to a device with an electric load and a replaceable electric energy store. The energy store has at least one first storage unit with a first initial energy quantity and at least one second storage unit with a second initial energy quantity, wherein an electronic circuit is designed to actuate the first storage unit or the second storage unit according to an algorithm. By actuating the first storage unit or the second source unit, the energy supply of the device is ensured by the respective storage unit, and by actuating the first storage unit or the second storage unit, it is ensured that when a remaining energy quantity or an applied energy quantity of one storage unit is low, the respective other storage unit has a remaining energy quantity of at least 10% of a total energy quantity.

Abstract: The present disclosure relates to a method for operating a magnetic-inductive flow meter. The method includes steps of generating a magnetic field in a medium during a feeding phase, wherein the feeding phase has a shot phase and a measuring phase, and measuring a coil current. The method also includes switching over from the shot phase to the measuring phase as soon as the coil current reaches a limit value, recording a time period from the beginning of the feeding phase to reaching the limit value, and determining a deviation of the time period from a target time period. The method further includes generating the magnetic field during a subsequent feeding phase, where a shot voltage of the subsequent feeding phase is adapted in dependence on the deviation in order to reduce the deviation of the time period from the target time period of the next feeding phase.

Abstract: A method for ascertaining volume- or mass-flow of a magnetically conductive medium flowing through a magneto-inductive, flow-measuring device having a predetermined nominal-diameter, wherein a periodically alternating, magnetic field is caused to pass through the flow-measuring device, the actual rise time, until a constant magnitude of the magnetic field is reached, is ascertained, the actual rise time is compared with a desired rise time ascertained in the case of flow of a reference medium through the flow-measuring device, and, on the basis of a difference between actual rise time and desired rise time, a measurement error is ascertained and the actually measured volume- or mass-flow of the magnetically conductive medium is so corrected, that the measurement error is canceled.

Abstract: A method of operating a magneto-inductive flow meter in which the damping constant for processing of measurement signal values is automatically increased during a cleaning procedure, in order that, during the cleaning procedure, the amount of the used cleaning medium can be easily determined, despite increased fluctuation in the measurement signal values.

Abstract: A method of operating a magneto-inductive flow meter in which the damping constant for processing of measurement signal values is automatically increased during a cleaning procedure, in order that, during the cleaning procedure, the amount of the used cleaning medium can be easily determined, despite increased fluctuation in the measurement signal values.