HP Casio FX-300 Plus Scientific Calculator

fx-85W fx-85WA fx-300W fx-350TL User’s Guide Guía del usuario Mode d’emploi Bedienungsanleitung Guida dell’utilizzatore

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ENGLISH Removing and Replacing the Calculator’s Cover • To Remove the cover Grasp the top of the cover, and slide the unit out from the bottom.

• To Replace the cover Grasp the top of the cover, and slide the unit in from the bottom. Always slide the unit into the cover with the unit’s display end first. Never slide the keyboard end of the unit into the cover.

Safety Precautions Be sure to read the following safety precautions before using this calculator. Keep this manual handy for later reference.

Caution This symbol is used to indicate information that can result in personal injury or material damage if ignored.

Batteries • After removing the batteries from the calculator, put them in a safe place where there is no danger of them getting into the hands of small children and accidently swallowed. • Keep batteries out of the reach of small children. If accidently swallowed, consult with a physician immediately. • Never charge batteries, try to take batteries apart, or allow batteries to become shorted. Never expose batteries to direct heat or dispose of them by incineration. • Misuse of batteries can cause them to leak acid that can cause damage to nearby items and creates the possibility of fire and personal injury. • Always make sure that a battery’s positive k and negative l sides are facing correctly when you load it into the calculator. • Remove the batteries if you do not plan to use the calculator for a long time. • Use only the type of batteries specified for this calculator in this manual.

Disposing of the Calculator • Never dispose of the calculator by burning it. Doing so can cause certain components to suddenly burst, creating the danger of fire and personal injury.

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• The displays and illustrations (such as key markings) shown in this User’s Guide are for illustrative purposes only, and may differ somewhat from the actual items they represent. • The contents of this manual are subject to change without notice. • In no event shall CASIO Computer Co., Ltd. be liable to anyone for special, collateral, incidental, or consequential damages in connection with or arising out of the purchase or use of these materials. Moreover, CASIO Computer Co., Ltd. shall not be liable for any claim of any kind whatsoever against the use of these materials by any other party.

Handling Precautions • Be sure to press the P button on the back of the cal• •

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culator (step 6 on page 29) before using it for the first time (fx-350TL). Be sure to press the 5 key before using the calculator for the first time (fx-85W/fx-85WA/fx-300W). Even if the calculator is operating normally, replace the battery at least once every three years. Dead battery can leak, causing damage to and malfunction of the calculator. Never leave the dead battery in the calculator. The battery that comes with the calculator when you purchase it is for testing only. It may not provide full service life. Low battery power can cause memory contents to become corrupted or lost completely. Always keep written records of all important data. E-2

• Avoid use and storage in areas subjected to tempera-

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ture extremes. Very low temperatures can cause slow display response, total failure of the display, and shortening of battery life. Also avoid leaving the calculator in direct sunlight, near a window, near a heater or anywhere else it might become exposed to very high temperatures. Heat can cause discoloration or deformation of the calculator’s case, and damage to internal circuitry. Avoid use and storage in areas subjected to large amounts of humidity and dust. Take care never to leave the calculator where it might be splashed by water or exposed to large amounts of humidity or dust. Such elements can damage internal circuitry. Never drop the calculator or otherwise subject it to strong impact. Never twist or bend the calculator. Avoid carrying the calculator in the pocket of your trousers or other tight-fitting cl