Pro-face PL-DU6900, Руководство пользователя

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5-1 PL-DU6900/PL-DU7900 User Manual
When the surface or the frame of the display gets dirty, soak a soft cloth in water
with a neutral detergent, wring the cloth tightly, and wipe the display.
• Do not use paint thinner, organic solvents, or a strong acid compound
to clean the unit.
• Do not use hard or pointed objects to operate the touch-screen panel,
since it can damage the panel surface.
5.1 Regular Cleaning
5.1.1 Cleaning the Display
Chapter
5 Maintenance
1. Regular Cleaning
2. Changing the Backlight
3. Periodic Check Points
Use the optional Screen Protection Sheet when using the DU in extremely dirty or
dusty areas.
5.1.2 Installation Gasket Replacement
The installation gasket protects the DU and improves its water resistance. For
instructions on installing the DU’s gasket, Chapter 4 Installation
and Wiring.
A gasket which has been used for a long period of time may have scratches or dirt on
it, and could have lost much of its water resistance. Be sure to change the gasket peri-
odically (or when scratches or dirt become visible).