Abstract: A method for installing a machine monitoring device which includes at least one gateway, at least one machine operation data sensor unit, a transmission unit having a transmission antenna for radio-based transfer of the machine operation data from the sensor unit to the gateway, and at least one user terminal for communication with the gateway. The antenna position is variable relative to the sensor and/or transmission units. The method steps include installing the gateway; establishing a communication link between the transmission unit and the gateway, positioning the transmission unit and antenna at or near the machine, transferring data packets to determine at least one communication parameter influencing the communication transfer quality, generating a position change instruction for the transmission unit or antenna and/or an action recommendation on the basis of the communication parameter, and displaying the instruction and/or recommendation at a user terminal.

Abstract: An electrical motor arrangement includes and electric motor having a frequency converter. The components of the electronics of the frequency converter are distributed among a plurality of modules, the modules are electrically connected to each other, and the individual modules are arranged radially on the motor and each have an individual closed housing in the mounted state. A cooling arrangement may be provided in which a fan causes a heat-dissipating air stream to pass over the modules and cooling fins arranged between adjacent modules to dissipate heat from the electric motor stator.

Abstract: A device and a method for monitoring rotating components in centrifugal pumps or systems which comprise centrifugal pumps is provided. The device includes a first unit which is located on or in the component to be monitored having at least one component property sensor, a sensor signal evaluation unit, a transmitting unit for transmitting analysis results to a receiver arranged spatially separate from the monitored component, and a source for supplying power. The device further includes a second unit having a receiver unit, a transmitted signal evaluation unit, and a sensed component property display and/or information communication element. The analysis result transmission from the first unit to the second unit is acoustic.

Abstract: The invention relates to a measuring device, comprising a housing having two opposing measuring surfaces, to each of which there are assigned a phototransmitter and photoreceiver disposed in the interior of said housing, each measuring surface having an opening which is transparent to light of at least one wavelength and at least one of the two measuring surfaces is in the form of a dynamometer.

Abstract: The invention relates to a measuring device, comprising a housing having two opposing measuring surfaces, to each of which there are assigned a phototransmitter and photoreceiver disposed in the interior of said housing, each measuring surface having an opening which is transparent to light of at least one wavelength and at least one of the two measuring surfaces is in the form of a dynamometer.

Abstract: A proximity switch which operates according to an inductive or capacitive action principle and contains a LC tuned circuit and a dynamically connected amplifier, and in which the approach of a suitable influencing element or article changes at least one oscillation parameter, the operating state of the amplifier being changed when the article does not reach a certain distance to the tuned circuit, the oscillation not however being interrupted with reaching the operating point. The proximity switch (1), likewise contains display elements (5) which are able to signal the presence of influence on the tuned circuit before the operating point or value of the amplifier is reached.