Transfer of a component with effect on the safety function from the safety-relevant area

US8423321B2 · kind B2 · utility

Assignee

• VEGA Grieshaber KG · DE

Inventors

• Martin Gaiser · Alpirsbach, DE
• Juergen Haas · Knittlingen, DE
• Juergen Lienhard · Fischerbach, DE
• Juergen Motzer · Gengenbach, DE

Key dates

• Filing date: Oct 22, 2009
• Grant date: Apr 16, 2013
• Expiry date: Jun 25, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2035/00683
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An electronic module for level measurements, pressure measurements or density measurements is disclosed. In the module, a safety-relevant function is transferred into an area that is categorized as safety-uncritical. In order to prevent malfunctions, a diagnostic function is performed in the safety-critical area of the electronic module in order to check the transferred function. This diagnostic function is also checked with respect to its effectiveness during the safety-oriented operation. Suitable measures can be initiated in case an error is detected.