Abstract: An apparatus for determining and/or monitoring a physical and/or chemical, measured variable of a medium, including a housing, especially an elongated housing, and a sensor arranged in the housing. The sensor serves for registering the measured variable, wherein the housing has at least one opening, through which the sensor comes in contact with the medium. The housing has a first housing section, in which the sensor and a sensor electronics are arranged. The sensor electronics is arranged on a first carrier element. The sensor electronics serves for changing the measured variable into an analog electrical signal. An insert is applied in the first housing section, in which the sensor electronics is arranged. The insert is tubular.

Abstract: A fill-level measuring device for measuring a fill level of a fill substance in a container, which, following a single commissioning, can be used in a plurality of applications. The fill-level measuring device includes: A measuring unit, which serves to produce a measurement signal dependent on the fill-level; a memory, in which parameter sets for different applications are stored; and an evaluating unit, which serves for selecting a parameter set, for deriving, on the basis of this parameter set, the fill level from the measurement signal, and for making such fill level available for further processing, evaluation and/or display.

Abstract: An apparatus for determining and/or monitoring at least one process variable of a medium. The apparatus includes: at least one evaluation unit, which monitors and/or signals an exceeding and/or subceeding of a predeterminable limit value of the process variable by the medium; and at least one memory unit, in which limit values of the process variable associated with at least one property of the medium are stored; and wherein the evaluation unit, based on information concerning the property of the medium, applies from the memory unit, for determining and/or monitoring the process variable, a stored limit value associated with the property of the medium.

Abstract: A method for reducing parameter data to be transferred in the case of uploading and/or downloading parameter settings between field devices and/or a control station, wherein the parameter data include information concerning an operating state of the field device and/or information concerning a process variable registered with the field device and/or identification data of the field device. Data present after a re-setting procedure or during the start-up of the field device are established as standard parameter data, wherein, for each parameter, modification information is stored concerning whether such parameter deviates from the standard parameter data, only such parameter data are transmitted, in the case of which a deviation from the standard parameter data is ascertained via the modification information.

Abstract: An apparatus for optimizing power consumption of an electrical circuit component in an operating- and evaluating-circuit of a two-conductor field device, wherein a control unit is provided, which switches the electrical circuit component with a clock signal. An energy supply unit is provided for supplying the circuit component with energy, and wherein at least one energy-storing component is connected to at least one output, at least one input and/or a supply input of the electrical circuit component. The apparatus provides for a field device, a suitable electronics for enabling improvement of the energy budget of the evaluating- and operating-circuit, especially its circuit component.

Abstract: A method for servicing, especially checking, an apparatus for capacitive ascertaining and/or monitoring at least one process variable of a medium, wherein the apparatus has at least one probe unit with a probe electrode and an auxiliary electrode. The probe electrode and/or the auxiliary electrode are/is supplied at least with one test signal or connected with at least one electrical potential, that at least one response signal is tapped from the probe unit, and that, at least from the response signal and a predeterminable desired value, information is obtained concerning the apparatus.

Abstract: In a method for transmitting data over a fieldbus of process automation technology with a field device in which a first application program for a first fieldbus protocol runs, the data of a second application program for a second transmission protocol are mapped onto the first fieldbus protocol and transmitted as fieldbus telegrams.

Abstract: An apparatus for ascertaining and/or monitoring fill level of a medium in a container. The apparatus includes an antenna, which transmits and receives high frequency signals in a predetermined oscillatory mode in a bounded space in a predetermined radiation direction, wherein, in front of the antenna in the radiation direction, an antenna protection element of a material transmissive for the high frequency signals is provided, and wherein a control/evaluation unit is provided, which evaluates the received high frequency signals and ascertains the fill level.

Abstract: Method for data exchange via a bus system (BS), wherein an amount of data determined for data exchange is composed of a plurality of data packets, which data packets are to be transmitted in a predetermined sequence from a second participant (P2) of the bus system (BS) to a first participant (P1) of the bus system (BS), wherein, for data exchange, a first data query is sent from the first participant (P1) to the second participant (P2), wherein, as a reply to the first data query, a first data packet is sent from the second participant (P2) to the first participant (P1), wherein, especially after the first participant (P1) has received the first data packet, a second data query is sent from the first participant (P1) to the second participant (P2) via the bus system (BS), wherein, as a reply to the second data query, a second data packet is sent from the second participant (P2) to the first participant (P1), wherein the second data packet is either the first data packet or a data packet following the first

Abstract: A pressure difference measurement transmitter 1 comprising: A pressure difference sensor 20; a first process connection flange 50; and a second process connection flange 50; wherein the pressure difference sensor 20 is clamped between the first process connection flange 50 and the second process connection flange 50 and between a first and a second seal; wherein the pressure difference sensor is contactable by a first media pressure via the first process connection flange and by a second media pressure via the second process connection flange; and a housing 11, which contains an electronic evaluating circuit; wherein the housing 11 has an input opening 16, through which the evaluating circuit is connected to the pressure difference sensor; and wherein the housing 11 has at least one appendage 12, which extends between the first and the second process connection flanges 50; wherein the appendage 12 is clamped in parallel with the pressure difference sensor 20 between the flanges 50, so that the housing is held

Abstract: A measuring apparatus for outputting a measurement signal representing the difference between a first pressure and a second pressure. The apparatus includes a first pressure measuring transducer module for outputting a sequence of first signals representing the first pressure; a second pressure measuring transducer module for producing a sequence of second signals representing the second pressure; an evaluation module for ascertaining a sequence of difference values between the two pressure values and for outputting a sequence of fourth signals, which, in each case, represent the pressure difference; a first cable connection between the first and second pressure measuring transducer module; and a second cable connection between the second pressure measuring transducer module and the evaluation module. The modules are separated spatially from one another.

Abstract: A method for manufacturing measuring transducers, especially pressure or pressure difference measuring transducers, in which a high degree of quality, safety and accuracy of measurement is achievable with little logistical and manufacturing effort. The measuring transducer has a memory readable and writable via an associated RFID interface, and at least one sensor for registering a physical, measured variable and for transducing such into an electrical variable, wherein the sensor is equipped with sensor electronics, which serves to condition the electrical variable into an electrical measurement signal dependent on the measured variable, and which is equipped with an RFID transponder, via which the sensor is supplied with energy, and via which measurement signals can be read out wirelessly.

Abstract: A dry, front-flush, pressure measuring transducer, which enables reliable measurements over a large temperature range. The transducer includes: a process connection made of a stainless steel and serving for securing the pressure measuring transducer to a measuring site; and a pressure sensor module, including a holder of stainless steel, into which a metal separating diaphragm is set front-flushly by means of a purely metal connection. A pressure to be measured acts on the separating diaphragm during measurement operation. The holder is set front-flushly by means of a purely metal connection into the process connection. The pressure sensor module further includes a titanium disk which is carried by the holder. A sapphire carrier with integrated silicon sensors is secured to the titanium disk.

Abstract: A pressure sensor comprises a sensor platform; a measuring membrane, or diaphragm, which is held by the sensor platform, and can have a pressure applied to it and is deformable as a function of pressure; and at least two resistance elements having an AlxGa1—xN layer. At least a first resistance element of the at least two resistance elements is arranged on the measuring membrane, or diaphragm and has a deformation-dependent resistance value. The pressure sensor can be operated using a measurement circuit to register a signal which depends on the resistance values of the at least two resistance elements in the plane of the AlxGa1—xN layer. Four resistance elements are preferably provided in a full bridge.

Abstract: A device for measuring/determining a physical quantity of a medium. The device comprises a sensor part and an electronic part, whereby at least the electronic part is arranged inside a housing and at least one fuel cell is provided which at least partially covers the energy demand of the device.

Abstract: An apparatus for determining and/or monitoring a process variable. The apparatus includes a housing, a mechanically oscillatable unit, and a transducer unit, which is arranged and clamped between two housing elements in such a manner that a predeterminable pressure acts on the transducer unit along an imaginary axis. An equalizing element is provided, whose coefficient of thermal expansion and/or height are/is selected in such a manner that a temperature-related expansion of the equalizing element during a temperature-related expansion of a housing element to be compensated leads to the pressure acting on the transducer unit being greater than or equal to a predeterminable prestress limit value.

Abstract: A relative pressure sensor for registering pressure of a medium relative to surrounding atmospheric pressure includes: a pressure measuring cell having a measuring membrane and a platform, wherein pressure of the medium can act on a first side of the measuring membrane facing away from the platform, and wherein the platform has a reference air opening, through which surrounding atmospheric pressure can act on a second side of the measuring membrane facing the platform. A support body, through which a reference air duct extends between a first surface section and a second surface section of the support body is provided, wherein the pressure measuring cell is affixed to the support body with a pressure resistant, bonded adhesive.

Abstract: A pressure sensor includes a hydraulic path filled with a pressure transfer liquid and a pressure transducer having a pressure sensitive deformation body. The hydraulic path includes a channel which extends from a pressure input opening at least to the deformation body, wherein the pressure input opening is spaced a separation distance from the deformation body, and wherein pressure on the deformation body deviates from pressure at the pressure input opening by the difference of the hydrostatic pressure of the pressure transfer liquid between the pressure input opening and the deformation body.

Abstract: A fill level measuring device for capacitive fill level measurement and/or travel time fill level measurement of a fill substance in a container. The measuring device has a coaxial measuring probe, whose inner conductor is galvanically isolated from its shield conductor, and whose shield conductor lies electrically at a reference potential. The device additionally includes: a securement apparatus lying electrically at a reference potential and serving for securement of the measuring device on a container opening equipped with a counterpart of the securement apparatus; and a washer made of an electrically conductive material and clamped in measurement operation between the securement apparatus and the counterpart. The inner conductor is completely surrounded in measurement operation by an insulating layer and passes through the washer into the container. The device additionally includes an insulating body adjoining the insulating layer and coaxially surrounding the inner conductor.

Abstract: A fill level measuring device for ascertaining and monitoring fill level of a medium in the process space of a container by means of a microwave travel time measuring method. The device includes: measurement transmitter; and an antenna unit, which is constructed at least of a hollow conductor and a radiating element, wherein a process isolation element is inserted into the hollow conductor for process isolation between measurement transmitter and the process contacting, radiating element. The process isolation element is made of a ceramic material and includes at least one glass layer, via which the process isolation element is directly glass bonded in the hollow conductor in a glass bonding region.