Справочник Пользователя для Psion Inc PX750BT

The top of the touchscreen is 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:

•

sodium hydroxide,

•

concentrated caustic solutions,

•

benzyl alcohol, and

•

concentrated acids.

If the touchscreen is used in harsh environments, consider applying a disposable screen pro-
tector (WA6110???). 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.

•

Use only mild detergent or soapy water to clean the hand-held unit.

•

Avoid abrasive cleaners, solvents or strong chemicals for cleaning. The plastic case 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.

Preliminary Draft