Abstract: A capacitive fill level sensor for measuring the fill level of a medium in a container has an electrode unit, which contains a strip-shaped measurement electrode, a strip-shaped counter electrode and a strip-shaped shielding electrode, the shielding electrode at least partially surrounding the measurement electrode. A first AC voltage source having a predefined frequency and amplitude is provided, to which the shielding electrode is connected such that a shielding capacitor formed between the shielding electrode and the measurement electrode has a shielding capacitance that is proportional to the length of the shielding electrode.

Abstract: A capacitive fill level sensor for measuring the fill level of a medium in a container has an electrode unit, which contains a strip-shaped measurement electrode, a strip-shaped counter electrode and a strip-shaped shielding electrode, the shielding electrode at least partially surrounding the measurement electrode. A first AC voltage source having a predefined frequency and amplitude is provided, to which the shielding electrode is connected such that a shielding capacitor formed between the shielding electrode and the measurement electrode has a shielding capacitance that is proportional to the length of the shielding electrode.

Abstract: Exemplary embodiments are directed to a monitoring unit and method for monitoring and/or signaling or visualizing a plurality of operating parameters of a gas-insulated switchgear system, where a current and voltage supply unit are located in the housing of the monitoring unit. At least one measurement cell capturing the density or the pressure of a protective gas present in the gas chamber of the gas-insulated switchgear system is also included in the monitoring unit. A processing unit processing the parameters captured by the measurement cell. The monitoring unit also includes a unit for measuring partial discharge and/or a unit for capturing an arc fault arising in the gas chamber of the switchgear system, and an interface for transferring analog and/or digital values.

Abstract: A system and method are disclosed for predictive determination of a process variable (P) in a technical installation. Measured values for the process variable (P) are recorded at predeterminable points in time. Temporally successive recorded measured values are combined to form a weighted measured value. A discrete measured value is assigned to each weighted measured value. Each weighted measured value that lies in a predeterminable tolerance band is assigned a same discrete measured value. A future temporal progression of the process variable (P) is estimated using a linear regression of the discrete measured values, and a point in time in which the process variable (P) reaches a predeterminable limit value is calculated.