The document describes an optical sensor for detecting liquid surface contamination. The sensor consists of a light source, a lens, a photodetector and an optical filter. The light from the light source is focused on the liquid surface by the lens. The contamination on the liquid surface scatters the light beam, which is received by the photodetector. By processing the output signal from the photodetector, the concentration of the contamination on the liquid surface can be determined. The sensor has the advantages of fast detection speed, high sensitivity, high reliability, etc.
This manual outlines important safety precautions for the LG W2753V display, including the use of the supplied power cable, avoiding water sources, and never opening the unit. It also describes proper cleaning, repackaging, and disposal of the monitor in accordance with local regulations.
Installation instructions cover mounting the base, adjusting tilt and rotation angles, connecting to a PC via DVI‑D, D‑sub, or HDMI, and using optional cable‑management features. Ergonomic recommendations and troubleshooting tips are also included. This manual is written in Chinese.
| Panel size | 210 mm × 145 mm |
|---|---|
| Tilt range | -5° to 15° |
| Rotation range | 355° |
Use only the power cable supplied with the display, avoid water sources, never open the unit, and disconnect the power when the monitor is unattended.
Place the monitor face‑down on a soft cloth, align the base with the mounting brackets as shown in the diagram, and tighten the screws securely.
Turn off the monitor, then gently wipe the screen and panel with a soft, clean cloth; do not spray cleaning agents directly onto the display.