| 摘要 |
<p>The display panel for the operator of a power station or process control plant, or for use as a simulator, includes a simulator with a number of bar chart indicators (1) consisting of light background fields (2) with horizontal bars (3) of darker colour. Each bar includes a number of apertures (5) of slot form giving access to indicator lamp bulbs (4) in various colours (red, yellow, green, etc). Each lamp (La 1-La 26) is in an electrical circuit with an information control unit incorporating magnetic tape records and programmers. Test programs may be checked and error signals are given either in visual or acoustic form.</p> |
