Tyco Electronics ELO TOUCHSYSTEMS TOUCHCOMPUTER 1520 - Manual (Page 22)

Elo TouchSystems 1520 User Guide 22
Display Angle
Wall Mounted
Desktop
For viewing clarity, you can tilt the desktop LCD from 30 to 75 degrees from vertical.
CAUTION In order to protect the LCD if no touchscreen is installed, be sure to hold
the base when adjusting the LCD, and take care not to touch the LCD screen.