Renkforce RF-CA-240 - Handling Precautions

4. Handling precautions
• Be sure to press the key before using the calculator for the rst time.
• Even if the calculator is operating normally, replace the battery at least once every
two years.
Adeadbatterycanleak,causingdamagetoandmalfunctionofthecalculator.Neverleavea
dead battery in the calculator.
• The battery that comes with this unit discharges slightly during shipment and storage.
Because of this, it may require replacement sooner than the normal expected battery
life.
• Low battery power can cause memory contents to become corrupted or lost
completely. Always keep written records of all important data.
• Avoid use and storage in areas subjected to temperature 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,
nearaheateroranywhereelseitmightbeexposedtoveryhightemperatures,Heatcancause
discoloration or deformation of the calculators 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 conditions 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-ttingclothingwhere
it might be subjected to twisting or bending.
• Never try to take the calculator apart.
• Never press the keys of the calculator with a ball-point pen or other pointed object.
• Use a soft, dry cloth to clean the exterior of the calculator.
If the calculator becomes very dirty, wipe it off with a cloth moistened in a weak solution of
waterandamildneutralhouseholddetergent,Wringoutallexcessmoisturebeforewipingthe
calculator.Neverusethinner,benzeneorothervolatileagentstocleanthecalculator.Doing
so can remove printed markings, and can damage the case.
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