Casio DT-900 - Manual (Page 9)

E-11
Introduction
Make sure you carefully read the following information to ensure that your Data Collector is
able to perform at the level for which it is designed.
Handling Precautions
• Do not throw or drop the Data Collector or otherwise subject it to strong impact, which can
damage the LCD screen, interrupt program execution, corrupt memory contents, or
otherwise interfere with proper operation.
• Use only your finger or a blunt object to operate the stroke keys. Use of a sharp pointed
object can damage stroke keys and cause shorting of internal circuitry.
• Use a soft, dry cloth when cleaning the Data Collector. Do not wipe with a wet cloth. Do
not use benzine, thinner, or other volatile chemicals, which can result in deformation and
deterioration of the materials used in the keys and case.
• Do not lay the Data Collector down with its key panel downwards. Doing so runs the risk
of accidental key operation, which can cause malfunction.
• Never remove the main battery while Data Collector power is turned ON. Doing so can
cause all data in memory to be lost.
• Sudden temperature changes can cause condensation to form on the Data Collector’s
case. Operating the Data Collector while condensation is present can interfere with proper
operation. Take care to avoid conditions that cause the formation of condensation. If
condensation does form, wait until it dries completely before using the Data Collector.