NewLine TRUTOUCH UB Series User Manual

45Care and MaintenanceMaintenance TipsClean the Infrared Tube●●●●●Do not put or install the product near a heat source or under direct sunlight, or in dustyor humid places, or somewhere the product may be hit or damaged by mechanicalvibration. To maximize the performance, it needs to be put away from equipment suchas grid, large metal objects and radar stations as far as possible.Do not wipe the screen with any chemical reagent. Solvents may damage theenclosure or paint. If the screen is stained by dust, cut off the power and then clean thescreen using a dried cloth with a little of warm water. Use a clean soft cloth to clean theLED of the screen.Do not frequently switch on and off the product, which may shorten the product servicelife. After the screen is switched off, wait for three minutes before switching it on again.If the product is not to be used for a long period of time, please power off the productand pull out the power plug.Do not maximize the brightness and contrast of the LED for a long period of time,which may shorten the LED service life.Do not use a hard object to write on the touch screen, which may scratch the LED.The interactive touch screen uses the horizontal and vertical infrared matrix to detectand locate the user's touch. The screen is surrounded by an infrared tube (includingthe infrared acceptor and emitter), which forms an infrared net covering on the screensurface. When a user touches the screen, fingers or other opaque objects blockthe infrared rays that cross the touch point, which helps the controller detect thecoordinate position of the touch point.Dust is easily retained on the screen surface due to its long-term exposure in the airand causes ineffective touch or inaccurate positioning. Therefore, you need to cleanthe infrared tube around the screen regularly.

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