Abstract: A method for recognizing deposits and/or adhesions on the outside of a measurement membrane of a pressure measuring device within a process facility is disclosed. The pressure measuring device includes a pressure measuring cell comprising a measurement membrane to detect pressure of a medium in a container. The outside of the measurement membrane is at least partially in contact with the medium its second side facing away from the medium includes means for detecting deflection of the measurement membrane. The pressure measuring device detects a micropulsation superimposed on the static pressure as an actual value. Micropulsations result from specific operating states of the process facility. Micropulsation conditions typical of specific operating states have been stored beforehand as setpoint values in an equalization procedure. The detected actual values are compared to the specified setpoint values, and an alarm signal is generated if they exceed and/or fall below the specified values.

Abstract: A pressure measuring device comprises a capacitive pressure measuring cell, a process connector including a retaining element, a housing mounted on the process connector, and a sealing element arranged between an inwardly projecting region of the retaining element and the pressure measuring cell. The retaining element is configured with a cap with a base area portion and an outer area portion bent over with respect thereto and fitted over an end face of the process connector. The retaining element is in a material-bonded and/or form-fit manner connected to the process connector exclusively in the bent-over outer area portion so that the base area portion assumes a resilient property.

Abstract: A pressure measuring device comprises a capacitive pressure measuring cell, a process connector including a retaining element, a housing mounted on the process connector, and a sealing element arranged between an inwardly projecting region of the retaining element and the pressure measuring cell. The retaining element is configured with a cap with a base area portion and an outer area portion bent over with respect thereto and fitted over an end face of the process connector. The retaining element is in a material-bonded and/or form-fit manner connected to the process connector exclusively in the bent-over outer area portion so that the base area portion assumes a resilient property.

Abstract: The invention relates to a method for the time control of an automated cleaning process in a tank container, wherein during the cleaning process cleaning liquid is sprayed onto the inner wall of the tank container by means of a spray head. According to the invention the following method steps are provided: detecting the heat removal of a heating element disposed in the flow-off area of the cleaning liquid; continuous determination of the state value of the cleaning liquid with regard to the two variables degree of contamination and spray rate by means of the heat removal; comparing the state value of the cleaning liquid in a quasi-stationary state with a target state value; and terminating the cleaning process when the current state value differs by less than a default value from a target state value.

Abstract: A process for detecting the operating state of a pump of a pump system, involves the steps of: detecting at least one pressure and/or flow profile P(t) in the pump system, computing of at least one characteristic value Kkal from the pressure and/or flow profile P(t), comparing the computed characteristic value Kkal with at least one defined characteristic value Kvor or with a range bordered by the characteristic value Kvor, the defined characteristic value Kvor or the characteristic value range corresponding to the operating state of the pump of interest, and outputting the operating state determined by the comparison. With the process, the operating states of pumps, pump systems and hydraulic systems is determined by the computed characteristic value Kkal characterizing the pulsation of the pressure and/or flow profile P(t) in a computation time interval ?tB, the pulsation quotient being computed as the computed characteristic value Kkal.

Abstract: A process for detecting the operating state of a pump of a pump system, involves the steps of: detecting at least one pressure nd/or flow profile P(t) in the pump system, computing of at least one characteristic value Kkal from the pressure and/or flow profile P(t), comparing the computed characteristic value Kkal with at least one defined characteristic value Kvor or with a range bordered by the characteristic value Kvor, the defined characteristic value Kvor or the characteristic value range corresponding to the operating state of the pump of interest, and outputting the operating state determined by the comparison. With the process, the operating states of pumps, pump systems and hydraulic systems is determined by the computed characteristic value Kkal characterizing the pulsation of the pressure and/or flow profile P(t) in a computation time interval ?tB, the pulsation quotient being computed as the computed characteristic value Kkal.

Abstract: A measurement apparatus for determining the position of an object relative to a reference surface, with a measurement nozzle, a reference nozzle, and a measurement device, the outlet opening of the measurement nozzle being located in the reference surface. A compressed air source provides air having a certain feed pressure so that the measurement device acquires one of three state variables: flow rate, pressure and speed of the air upstream of the measurement nozzle.

Abstract: A measurement apparatus for determining the position of an object relative to a reference surface, with a measurement nozzle, a reference nozzle, and a measurement device, the outlet opening of the measurement nozzle being located in the reference surface. A compressed air source provides air having a certain feed pressure so that the measurement device acquires one of three state variables: flow rate, pressure and speed of the air upstream of the measurement nozzle.