Abstract: An apparatus for analyzing a product to be analyzed which is located in a receptacle provided with a coupling element, in particular for photometric or spectrophotometric analysis of powder, bulk material, granular material and similar, is provided with a docking element for sealing connection to the coupling element, and with a measuring probe which is arranged in a probe housing and is provided with at least one radiation and light measuring element, at least one measuring window, which is arranged in the beam path and is arranged in a wall of the probe housing, and with at least one detection element for the analysis. The probe housing with the measuring probe is designed and guided displaceably in such a way that at least a part of the probe housing in which the measuring window is located can be inserted into the receptacle for the analysis.

Abstract: The invention relates to a method and a device for monitoring the optical transmissibility of an observation window (2) for the spectroscopic analysis of the homogeneity of a mixture material in a mixing container. According to the method, a product-specific limit value for the spectroscopic data is stored in the analysis unit, which limit value must be undershot within a prespecified time. If the data does not fall below the limit value within that time, the analysis unit emits a signal which contains information to the effect that the observation window (3) is soiled to an unacceptable degree. The device comprises an analysis unit in which product-specific limit value for the spectroscopic data can be stored, a cleaning device for cleaning the observation window and a switching unit for activating the cleaning device. The analysis unit is suitable for emitting a signal if the limit value is not undershot during the mixing process within a prespecified time.

Abstract: An apparatus for the electromagnetic spectrum or optical analysis of a material. The apparatus comprising a measuring probe having a housing with at least one radiation or light measuring element, a measuring window and with at least one detection element for the analysis. The measuring probe is formed and guided displaceably in the axial direction in such a way that at least part of the housing in which the measuring window is located enters through an opening in which the material to be analyzed is located for the analysis. The at least one measuring window is arranged in at least one subregion of the circumferential wall of the housing. A sealing cap is located between a front end face of the housing and the measuring window arranged in the circumferential wall and consequently covers the opening in a retracted position of the measuring probe.

Abstract: An apparatus for analyzing a product to be analyzed which is located in a receptacle provided with a coupling element, in particular for photometric or spectrophotometric analysis of powder, bulk material, granular material and similar, is provided with a docking element for sealing connection to the coupling element, and with a measuring probe which is arranged in a probe housing and is provided with at least one radiation and light measuring element, at least one measuring window, which is arranged in the beam path and is arranged in a wall of the probe housing, and with at least one detection element for the analysis. The probe housing with the measuring probe is designed and guided displaceably in such a way that at least a part of the probe housing in which the measuring window is located can be inserted into the receptacle for the analysis.

Abstract: The invention relates to a capillary tube holder with a recess for holding a capillary tube. At least one pair of light channels is provided perpendicular to the axial direction of the recess. Each pair of light channels has an incoming light channel to supply light beams to the capillary tube and an outgoing light channel to transmit said light beams to an evaluation device. The light channels extend radially with respect to the recess and lead therein. Light conductors comprising individual fibres are provided in each incoming light channel and each outgoing light channel and are arranged upstream of the capillary tube. The diameter of each individual fibre corresponds at least approximately to the internal diameter of the capillary tube, and a plurality of individual fibres of the light conductors is arranged parallel and/or radially to the longitudinal axis of the capillary tube in the area where the light channels lead into the recess.