User's Manual

Maintenance
50
Chapter 6. Maintenance
Cleaning the Device
Danger to electric shock when cleaning or maintaining the PM-521.
To avoid electric shock, turn the PM-521 off and disconnect it from the power supply before cleaning or
maintaining it.
Housing
 The housing of the PM-521 is best cleaned with a damp cloth.
 Use compressed air, a high-pressure cleaner or vacuum cleaner may damage the surface.
 Use a high-pressure cleaner, the additional risk of water entering the PM-521 may damage
the electronics or touch screen.
Touch Screen
 Use neutral detergent or isopropyl alcohol on a clean soft cloth to clean the panel surface.
 Prevent using any kind of chemical solvent, acidic or alkali solution.
Returning the Device
Please put the contents in the original package gently when you need to return the PM-521.
Contacting RuggON
If you experience technical difficulties, please consult your distributor or contact the technical
services department:
www.ruggon.com