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Chapter 3: Getting To Know Your 7530 G2
General Maintenance
56 Psion Teklogix 7530 G2 Hand-Held Computer User Manual
3.11 General Maintenance
3.11.1 Caring For The Touchscreen
The touchscreen is covered with a thin, flexible polyester plastic sheet with a
conductive coating on the inside. The polyester can be permanently damaged
by harsh chemicals and is susceptible to abrasions and scratches. Using sharp
objects on the touchscreen can scratch or cut the plastic, or crack the internal
conductive coating.
The chemicals listed below must not come into contact with the touchscreen:
• mustard, ketchup
• sodium hydroxide,
• concentrated caustic solutions,
• benzyl alcohol, and
• concentrated acids.
If the touchscreen is used in harsh environments, consider applying a disposable
screen protector (PN HU6110). These covers reduce the clarity of the display
slightly but will dramatically extend the useful life of the touchscreen. When they
become scratched and abraded, they are easily removed and replaced.
3.11.2 Cleaning The 7530 G2
Important: Do not immerse the unit in water. Dampen a soft cloth with mild
detergent to wipe the unit clean.
•Use only mild detergent or soapy water to clean the hand-held unit.
• Avoid abrasive cleaners, solvents or strong chemicals for cleaning. The
7530 G2 has a plastic case that is susceptible to harsh chemicals. The plastic
is partially soluble in oils, mineral spirits and gasoline. The plastic slowly
decomposes in strong alkaline solutions.
• To clean ink marks from the keypad and touchscreen, use isopropyl alcohol.