Method for monitoring the correct operation of a temperature sensor used with the thermal element of an oven, etc. is able to test for a short-circuit in the temperature sensor

摘要

Method involves recording oven temperature as a function of time. If there is no, or only very small temperature change over a time period then this can be taken to indicate a short circuit in the electrical connections to the temperature sensor. This is evaluated by checking if a threshold or tolerance setting is exceeded. To test a short-circuit indication, heat to the oven is significantly increased or decreased and if the temperature indication does not change a short-circuit is indicated.