User's Manual
67
Maintenance
Chapter 7. Maintenance
Cleaning the Device
Danger to electric shock when cleaning or maintaining the PM-311B.
To avoid electric shock, turn the PM-311B off and disconnect it from the power supply before cleaning or
maintaining it.
Housing
The housing of the PM-311B 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-311B 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-311B.
Contacting RuggON
If you experience technical difculties, please consult your distributor or contact the technical
services department:
www.ruggon.com