Measuring device for measuring the density and / or viscosity of a liquid

摘要

A portable measuring device (100) for measuring the density and / or the viscosity of a liquid comprises: a housing (110); a sensor module (170) arranged in the housing (110) with a micromechanical sensor element with an oscillator for determining the density and / or the viscosity of the liquid; a hydraulic measurement path running through or in the sensor module (170); a delivery line (164, 166) which runs from a flow opening (164a) through the housing (110) to a return opening, and which communicates with the measuring path; a feed pump (160) for pumping the liquid; a battery (182) or an accumulator for supplying energy to the measuring device; an operating circuit (180) for operating the measuring device; a container connection (142) for connecting a container, each with a housing-side and a container-side connection element; at least one seal (143) which seals the interior of the container, the flow opening opening into the container, the return opening also being designed to communicate with the interior of the container when a container is connected.