Patent ID: 7139683
Filing Date: 2006-11-21
Classification: G08C

Abstract:
1. A transmitter, comprising: a sensor, which serves for registering a physical parameter (X) and transducing such into an electrical quantity; a signal pre-processor connected to said sensor, which serves for converting the electrical quantity into a raw signal (R); a signal processor connected to said signal pre-processor, which serves for converting the raw signal (R) into a measurement signal (M); an output stage, which serves for issuing an output signal corresponding to the measurement signal (M); and a monitoring unit connected to said signal pre-processor, to said signal processor, and to said output stage which in operation compares the output signal with an auxiliary signal (H) derived from the raw signal (R) and triggers a safety-directed adjustment of the output signal, when a difference between the output signal and the auxiliary signal (H) exceeds a predetermined limit.