Abstract: A display (AV) for on-site visualization of conditions of an automated process (PZ) is disclosed. It comprises a display controller (AS) which at least temporarily provides a state indication signal (ZA) representing a constellation of states of at least two process data signals (PD1, PD2). At least one of the two process data signals (PD1, PD2) is derived from a signal (RX) generated externally to the field device (F1). The field device (F1) has a display element (AE) which responds to a change in the state indication signal (ZA) with a significant change in its appearance, thus signaling the constellation of the states of the two process data signals (PD1, PD2) in a visually perceptible manner. Therefore, the field device (F1) is particularly suited for on-site monitoring of entire plants or sections thereof by operating personnel.

Abstract: A radiation meter for radiation emerging from an optical fiber, comprising a hollow body having diffusely reflecting interior walls into which the end of the optical fiber can be introduced, and at least one detector arranged behind an opening of the hollow body. Between the end of the optical fiber and the opening for the detector, a diffusely reflecting body is arranged which, together with the interior wall of the hollow body, in the area of the opening for the detector, forms a gap with an adjustable gap thickness.