Device and method for the gravimetric volume determination of liquid volumes and anlyzer system comprising such a device

• Main Authors: THIEL, MARKUS, BURMESTER, JOERG, KULL, PHILIPP, OTT, DANIEL
• Format: Patent
• Language: English; French; German
• Published: 01.10.2008
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING; WEIGHING

A device for the gravimetric volume determination of liquid volumes. The device comprises a housing (11) having the shape and dimensions of a standard rack used in a clinical diagnostic analyzer system for holding sample or reagent containers, and the following components contained in housing (11): a load cell (12) for gravimetric volume determination, a weighing container (13) for receiving a liquid to be weighed with said load cell (12), a windbreak (14) which shields said weighing container (13) from air flow, an evaporation trap (15) which prevents evaporation of liquid loaded into said weighing container (13), a temperature sensor (21), an air-pressure sensor (31) and a humidness sensor (41) for sensing temperature, air pressure and humidness respectively at predetermined points within said housing (11), and an electronic processing unit for processing electrical output signals delivered by said load cell (12) and by said sensors (21, 31, 41).