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Battery Precautions
Observe the precautions below. Failure to do so can cause
the battery to explode or leak flammable liquid or gas.
• Use only the type of battery that is specified for this product.
• Do not burn a battery or dispose of it in an incinerator, or by
mechanical crushing or cutting.
• Do not subject a battery to excessively high or low temperatures
during use, storage, or transport.
• Do not subject a battery to excessively low barometric pressure
during use, storage, or transport.
Handling Precautions
• fx-570CW: Even if the calculator is operating normally, replace the
battery at least once every two years (R03).
fx-991CW: Even if the calculator is operating normally, replace the
battery at least once every two years (LR44).
A dead battery can leak, causing damage to and malfunction of the
calculator. Never leave a dead battery in the calculator. Do not try using
the calculator while the battery is completely dead (fx-991CW).
• You will be charged for malfunction or damage due to battery leakage,
which is not covered by the warranty.
• The battery that comes with the calculator discharges slightly during
shipment and storage. Because of this, it may require replacement
sooner than the normal expected battery life.
• Avoid use and storage of the calculator in areas subjected to
temperature extremes, and large amounts of humidity and dust.
•
Do not subject the calculator to excessive impact, pressure, or bending.
• Never try to take the calculator apart.
• Use a soft, dry cloth to clean the exterior of the calculator.
•
Whenever discarding the calculator or batteries, be sure to do so in
accordance with the laws and regulations in your particular area.
Getting Started
Attaching and Removing the Front Cover
To remove the front cover
Before using the calculator, remove the front cover (①) and attach it to the
back (②).
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