Abstract: The invention relates to an optical measuring device, more particularly for measuring turbidity in a medium comprising a housing, more particularly of metal, at least one sensor arranged in the housing including at least one radiation source for beaming at least one optical beam into the medium to be investigated, and at least one detector for detecting the scattering or reflections of the beam in the medium, at least one optically transparent element in a housing wall for beam emergence/incidence from/into the housing, at least one vibrator mechanical coupled at least to the optically transparent element, wherein a) the vibrator is arranged between the sensor and the optically transparent element, and b1) the vibrator contains at least one opening or passageway for beam passage and/or b2) the beam is steered between and through parts of the vibrator(s) into/out of the housing. This achieves a compact optical measuring device for reliable measurement even in heavily polluted media.

Abstract: The invention relates to a modular measuring system (10) comprising at least one measuring location having sensors, at least one connection module (18a, 18b, 18c), which is provided at the measuring location and which is preferably located in a housing (20) and is used to connect sensors, at least one communications port to connect sensors and at least one input/output unit (12), at least one element that is provided at the measuring location and that has an identification code for the input/output unit one electronic module that is provided in the input/output unit, that is controlled on the basis of the identification code, and that is used for the functions of the I/O elements (14, 16) of the input/output unit. Defining the functions of the input/output unit by means of the identification code provided at the measuring location largely prevents improper operation of the input/output unit.

Abstract: The invention relates to an optical measuring device, more particularly for measuring turbidity in a medium comprising a housing, more particularly of metal, at least one sensor arranged in the housing including at least one radiation source for beaming at least one optical beam into the medium to be investigated, and at least one detector for detecting the scattering or reflections of the beam in the medium, at least one optically transparent element in a housing wall for beam emergence/incidence from/into the housing, at least one vibrator mechanical coupled at least to the optically transparent element, wherein a) the vibrator is arranged between the sensor and the optically transparent element, and b1) the vibrator contains at least one opening or passageway for beam passage and/or b2) the beam is steered between and through parts of the vibrator(s) into/out of the housing. This achieves a compact optical measuring device for reliable measurement even in heavily polluted media.

Abstract: The invention relates to a modular measuring system (10) comprising

Abstract: The present invention relates to an apparatus and a method for analyzing the amount of chemical substrates in a liquid, more particularly in a clarified solution or a process water. The apparatus comprises a separate filtration housing in which a filter medium is arranged for arresting the filtrate supplied to an analyzer. Provided in the filtration housing is a gas supply means by means of which the filter medium is charged or flushed with a gas.