Nephelometric turbidimeter and method for controlling the humidity of venting air in a nephelometric turbidimeter

US10408729B2 · kind B2 · utility

Assignee

• HACH LANGE GMBH · DE

Inventors

• Manfred Battefeld · Goldkronach, DE
• Hans-Joachim Kumpch · Berlin, DE
• Axel Leyer · Rheydt, DE
• Bas De Heij · Dormagen, DE
• Clemens Hanschke · Berlin, DE
• Michael Kueppers · Kaarst, DE
• Andreas Jonak · Meerbusch, DE
• Elk Fricke · Berlin, DE
• Heinz Rudde · Hückelhoven, DE
• Markus Hahn · Kempen, DE
• Markus Lenhard · Viersen, DE
• Rolf Uthemann · Leverkusen, DE
• Sebastian Minke · Krefeld, DE
• Andreas Golitz · Moers, DE
• Bernd Gassner · Neuss, DE
• Frank Steinhauer · Berlin, DE
• Lothar Heidemanns · Korschenbroich, DE
• Andreas Mitreiter · Berlin, DE

Key dates

• Filing date: Nov 19, 2015
• Grant date: Sep 10, 2019
• Expiry date: Feb 26, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2201/0238
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A nephelometric turbidimeter for measuring a turbidity of a liquid sample in a transparent sample cuvette. The nephelometric turbidimeter includes a cuvette chamber housing with a cuvette chamber having the transparent sample cuvette arranged therein, and a drying apparatus. The drying apparatus includes a cuvette chamber inlet opening which vents the cuvette chamber, a cuvette chamber outlet opening which de-vents the cuvette chamber, an air circulator which circulates air from the cuvette chamber outlet opening to the cuvette chamber inlet opening, and a drying body. The drying body is provided as a container of a hygroscopic agent defined by a drying substance which is arranged in a drying path between the cuvette chamber outlet opening and the cuvette chamber inlet opening so that air flows through the drying body.