PM-311 User Manual
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Maintenance
Your PM-311 needs occasional cleaning to prolong their life. Please read this section carefully to ensure
proper care of PM-311. When it is necessary to clean it, use a soft, lint-free cloth, slightly dampened with
a mild detergent solution or use the contents of any commercially available computer cleaning kit.
Never use petroleum-based solvents, or harsh detergents to clean the system. Also never spray any
liquids directly on the computer case or screen. If the display screen has become smeared or dusty, clean
the screen by first applying a mild glass cleaner to a soft, clean, lint-free cloth, and gently wipe the glass.
Never apply liquids directly on the screen surface. Moreover, do not use paper towels to clean the display
screen. Paper can scratch the display screen matte.
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Do not expose heat or attempt to disassemble the battery, and do not place the battery in water
or in a fire.
Do not subject the battery to strong impact, such as a blow from a hammer, or stepping on or
dropping it.
Do not puncture or disassemble the battery.
Do not attempt to open or service the battery.
Replace only with batteries designed specifically for this product.
Keep the battery out of reach of children.
Dispose of used batteries according to local regulations.
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Do not scratch the surface of the screen with any hard objects.
Do not spray liquid directly on the screen or allow excess liquid to drip down inside the device.
Do not place anything, such as food and drink, on the screen at any time to prevent damage to
the screen.
Clean the LCD display only with a soft cloth dampened with denatured alcohol or a proprietary
LCD screen cleaner.
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Turn off the PM-311 and unplug the power cord.
Wipe the screen and exterior with a soft, damp cloth moistened only with water. Do not use liquid
or aerosol cleaners on the screen, as these will discolor the finish and damage the screen.
