PROCESS AND DEVICE FOR INDICATING AN ANOMALOUS THERMAL STRESS CONDITION IN A HEATING SURFACE MADE FROM GLASS CERAMIC OR A COMPARABLE MATERIAL

摘要

A process for detecting and indicating an anomalous thermal stress condition in a heating surface made from glass ceramic or a comparable material, especially a glass ceramic cooking surface, is described, and by one or more temperature sensors, independent of one another, placed in the area of the heating zone the temperature distribution in the heating surface characteristic for a specific anomalous thermal stress condition is determined and is indicated by suitable operating condition indicators and/or optical and/or acoustic warning devices. This has the advantage that harmful operating conditions caused by carelessness can be indicated to the user early and can be specifically eliminated by the user.