Abstract: A gravimetric measuring instrument (10) includes a housing (103) and a weighing cell (120), wherein the latter is arranged inside the housing and includes a load-transmitting member (108). The load-transmitting member reaches through a passage opening (111) of the housing and is releasably connectable to a load receiver (401, 501, 1001). The invention has the distinguishing feature that the load receiver includes a fastening element (450), a weighing pan element (440, 540, 1040) and a snap-locking device (460, 1060) for the releasable seating of the weighing pan element on the fastening element, wherein the snap-locking device includes a detent element (461, 1061) and a spring element (462) which engages the detent element when the weighing pan element is seated in place.

Abstract: An electrochemical sensor for potentiometric measurements in a measurement medium has a sensor head (201) at an end of a longitudinal sensor body (203). A sensing electrode (210) and a reference electrode (220) are disposed within the longitudinal sensor body. A liquid junction (223) is established between the reference electrode and the sensing electrode. The sensor is characterized by a protective outer shaft (250) with a polymeric sensor sleeve (230), which is electrically isolating, disposed within the protective outer shaft.

Abstract: A gravimetric measuring instrument (10) includes a housing (103) and a weighing cell (120), wherein the latter is arranged inside the housing and includes a load-transmitting member (108). The load-transmitting member reaches through a passage opening (111) of the housing and is releasably connectable to a load receiver (401, 501, 1001). The invention has the distinguishing feature that the load receiver includes a fastening element (450), a weighing pan element (440, 540, 1040) and a snap-locking device (460, 1060) for the releasable seating of the weighing pan element on the fastening element, wherein the snap-locking device includes a detent element (461, 1061) and a spring element (462) which engages the detent element when the weighing pan element is seated in place.

Abstract: An overload protection device for a precision balance includes a measuring cell having a short travel distance, a parallel guide unit connected to a load receiving unit, and an auxiliary parallel guide unit whose guide members are connected to the load receiving unit, on the one hand, and to a weighing dish carrier member, on the other hand, wherein the guide members of the auxiliary parallel guide unit are pretensioned by at least one spring and form a rigid unit with the load receiving unit within the loading range of the balance. The auxiliary parallel guide unit includes an upper guide member and a lower guide member, wherein the two ends of the guide members of the auxiliary parallel guide unit on the side of the weighing dish are connected to each other by at least one guide bolt fastened to the upper guide member and the lower guide member. The guide bolt extends with play through a support plate which is fixedly connected to the load receiving unit of the measuring cell.