Electric balance for correcting misloading thereof

US5902965A · kind A · utility

Assignee

• Sartorius AG · DE

Inventors

• Christian Oldendorf · Oettingen, DE
• Franz-Josef Melcher · Hardegsen, DE
• Christoph Berg · Oettingen, DE

Key dates

• Filing date: Feb 6, 1998
• Grant date: May 11, 1999
• Expiry date: Feb 6, 2018

Classification

• Technology area (CPC G): Physics
• CPC primary: G01G23/3707
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In an electronic balance for loading having a balance scale (3) weighing system, display (19), control keyboard (21 to 26) and a digital processing electronic circuitry in which circuitry at least one memory is present for the weighed value shown in the display (19). A first additional key (25) is present in the control keyboard (21 to 26) upon the actuation of the key the weighed value shown in the display (19) and stored in the digital signal processing electronics is decreased and upon the first actuation of the key the weighed value displayed immediately previously is taken in addition into a first additional memory. Furthermore, a second additional key (24) is present in the control keyboard (21 to 26) upon whose actuation the weighed value displayed in the display (19) is taken into a second additional memory. By means of the decreasing key the balance operator can decreased the display from the too large actual value step-by-step to the correct theortical value. Since the overload is generally only a few numerical steps of the balance display, this is achieved with a few steps. The balance can calculate the percentage overload by storing the balance display prior to the decr…