Abstract: A protective tube, in particular for sealed introduction into a process space having a flow directed in a direction, having a hollow body, which is closed at its lower end, an opening at its upper end for introducing a temperature sensor; and at its upper end has a contour for sealing to a process space. The hollow body is cylindrical inwardly, an outer contour of the hollow body tapers toward the closed lower end, and at least in sections, at least one helix structure is arranged on the outer contour and/or at least in sections, at least one helix structure is arranged in the outer contour. A gas sample collector for introduction into a process space is also provided.

Abstract: A gas densimeter for monitoring a pressure or density of a gas in a gas chamber with a housing having a first housing chamber and a measuring chamber, a first coupling, via which the measuring chamber can be connected to the gas chamber, at least one reference bellows, which is connected directly or indirectly in particular to a transmission element, and at least one transmitting and/or monitoring unit, which is or can be operatively connected directly or indirectly to the transmission element. In this regard, the measuring chamber has a gas-permeable connection to the gas chamber via the first coupling and the reference bellows forms a reference chamber filled with a constant amount of a reference gas. A surface section covering the reference chamber is provided or reachable at least partially within the first housing chamber or measuring chamber as a measuring surface for the gas from the gas chamber.

Abstract: A measuring system for a physical variable, the measuring system having a housing, a measuring tube having at least one tubular deformation body having a cross-section which is deformed at least partially and which is configured to expand elastically under pressure, two feed sections attached to end sections of the deformation body, two sealing sections for sealingly coupling the measuring system to a process, and two molded support sections to carry the housing. A measuring sensor system measures values of at least one of a stretching or a widening at at least two points on a section of the deformation body. An evaluation unit evaluates measured values of the stretching and widening and outputs them as a measurement signal. The housing at least partially surrounds and stabilizes the measuring tube on an outside and is provided with a vacuum and/or a negative pressure compared to the outside atmosphere.

Abstract: A housing for a measuring instrument comprising a housing part, a cover connectable to the housing part in a detachable manner and by means of which a housing opening of the housing part is closable, and a sealing element. The housing part has a central axis, which coincides congruently with a central axis of the cover when closed. The cover has at least one sealing surface on which the sealing element comes to rest at least when the housing part is completely closed. The housing part has at least one sealing surface on which the sealing element rests when the housing part is closed with the cover. A surface line of the sealing surface of the housing part and/or a surface line of the sealing surface of the cover are/is rotated with respect to the central axis, at least when the housing part is completely closed.

Abstract: A pressure-actuated switch having a pressure port, a diaphragm, a range spring, an actuator plate, a differential plate, and an electrical switch. A certain pressure level moves the diaphragm against the range spring at the pressure port and thus deflects the actuator plate. The actuator plate is coupled to the electrical switch via a snap spring, wherein the electrical switch can be switched on or off via the deflection of the actuator plate and the snap spring. The differential plate controlled by a differential spring is connected to the actuator plate and supports the actuator plate in a first portion of movement, wherein the differential plate is decoupled from the actuator plate in a second portion of movement of the actuator plate.

Abstract: A gas densimeter for monitoring a pressure or density of a gas in a gas chamber with a housing having a first housing chamber and a measuring chamber, a first coupling, via which the measuring chamber can be connected to the gas chamber, at least one reference bellows, which is connected directly or indirectly in particular to a transmission element, and at least one transmitting and/or monitoring unit, which is or can be operatively connected directly or indirectly to the transmission element. In this regard, the measuring chamber has a gas-permeable connection to the gas chamber via the first coupling and the reference bellows forms a reference chamber filled with a constant amount of a reference gas. A surface section covering the reference chamber is provided or reachable at least partially within the first housing chamber or measuring chamber as a measuring surface for the gas from the gas chamber.

Abstract: A membrane device/membrane having a flexible membrane section. A first side of the membrane section is exposed to a process medium and a second side has a layer structure, which includes at least a first layer and a second layer. The first layer has a coefficient of thermal expansion, the value of which lies between the values of the coefficients of thermal expansion of the membrane section and the second layer. The second layer, with respect to the process medium or a component of the process medium has a permeability that is lower than the corresponding permeability of the membrane section. A pressure transmitter and a pressure sensor comprising such a membrane device is provided, as well as a use for a membrane device.

Abstract: A temperature sensor having a support tube with a distal end having a first distal opening, with a proximal end having a first proximal opening and with a channel extending between the openings. The temperature sensor further comprises a sensing element, which is inserted through the first proximal opening into the channel and passes through it, so that a measuring tip of the sensing element passes through the first distal opening and protrudes beyond the distal end of the support tube, at least in sections. The support tube has a first fastening area on or near the distal end and a second fastening area on or near the proximal end. The sensing element is directly or indirectly tightly sealed to the support tube by solder joints on the first and second fastening areas.

Abstract: The present disclosure relates to a temperature sensing device having a plurality of thermocouple arrangements, each of the thermocouple arrangements having a forward conductor and a plurality of return conductors electrically connected with the forward conductor, the return conductors having a different conductive material than the respectively associated forward conductor, electrical junctions or groups of electrical junctions of the return conductors to the respectively associated forward conductor being arranged at different longitudinal positions of the respectively associated forward conductor, and consecutive longitudinal positions of the electrical junctions or of groups of the electrical junctions of all thermocouple arrangements in the longitudinal direction of all forward conductors alternating between different forward conductors. Further, the present disclosure relates to a method of producing a temperature sensing device.

Abstract: A sensor body for receiving a pressurized fluid or for absorbing a force, having a membrane and at least one strain sensitive measuring element disposed on the membrane, comprising, a semiconductor substrate and at least one piezo resistive resistance track, wherein the resistance track is formed in the semiconductor substrate by means of doping. According to the invention, the measuring element is connected to the membrane by means of a lead-free glass solder and the measuring element is arranged, at least in sections, sunk into the glass solder. A measuring element, a pressure sensor, a force measuring device, a method for manufacturing a sensor body and the use of a measuring element is also provided.

Abstract: A radio sensor module having a sensor base module having at least one sensor circuit board that has a sensor, and/or having a terminal for connection to a sensor external to the radio sensor module; a process terminal and/or an extended sensor terminal; a housing portion that accommodates the sensor base module and the sensor circuit board; and a radio sensor unit having a structural carrier that carries therein a radio circuit board and an energy store that supplies the radio circuit board with electrical energy. The energy store has an electrical battery and an electrical condenser which are electrically connected in parallel. A modular system is also provided for forming such a radio sensor module.

Abstract: An electrical assembly having a housing with a housing pot and a housing cover closing the housing pot and at least two connection terminals provided for the electrical connection of the assembly. The connection terminals each comprise a base plate, a clamping plate, which can be arranged on the base plate, for clamping at least one electrical conductor between the base plate and the clamping plate, a contact pin protruding into the housing pot, and a screw for fastening the clamping plate to the base plate. The housing pot is a hollow cylinder with a closed bottom and the electrical connection terminals are arranged along an imaginary circular line on the housing. The base plates and/or the clamping plates each have a trapezoidal base area.

Abstract: A protective tube for sealed introduction into a process vessel at a process vessel port, the protective tube comprising a sealing base element which is connected onto the process vessel port and an elongate body with a bore. The elongate body comprises a closed distal end and an open proximal end, which is sealingly connected onto the sealing base element. The protective tube also comprises a receiving part, which is connected or attached onto the elongate body inside the process vessel so as to receive and hold a secondary temperature sensor from inside the process vessel. In addition, a reference temperature sensor is insertable into the bore from outside the process vessel. Also provided is a temperature measurement arrangement and a method for a temperature measurement in a process vessel.

Abstract: A temperature sensor, having a first conductor made of a first material comprising an end section, a second conductor made of a second material, which differs from the first material, comprising an end section, and a casing for receiving the end sections of the two conductors and for positioning in a process atmosphere or in a process fluid and/or on a surface of a process structure. According to the invention, a measuring point body structure is provided, which is arranged within the casing or on the casing, wherein the first conductor and the second conductor directly or indirectly form a thermocouple in or on the measuring point body structure and the measuring point body structure comprises a barrier material.

Abstract: An electrical assembly having a housing with a housing pot and a housing cover closing the housing pot and at least two connection terminals provided for the electrical connection of the assembly. The connection terminals each comprise a base plate, a clamping plate, which can be arranged on the base plate, for clamping at least one electrical conductor between the base plate and the clamping plate, a contact pin protruding into the housing pot, and a screw for fastening the clamping plate to the base plate. The housing pot is a hollow cylinder with a closed bottom and the electrical connection terminals are arranged along an imaginary circular line on the housing. The base plates and/or the clamping plates each have a trapezoidal base area.

Abstract: A thermocouple assembly for surface temperature measurement, comprising a sheathed thermocouple sensor cable, a positioning pad, receiving and/or securing a thermocouple sensor end at a desired measuring point, an insulation body, and a shielding, wherein the positioning pad is mechanically connected to the shielding. Additionally methods for the installation of a thermocouple assembly are also provided.

Abstract: A gauge including a housing, a measuring port, an opening formed in the housing and a cover for covering the opening. The cover of the gauge is selected from a range of flexible and translucent materials.