INSTRUCTIONS AND MAINTENANCE
IF EARPHONES (not included) ARE
USED, BE SURE THEY ARE NOT TOO LOUD.
ADULTS SHOULD REMOVE OR INSTALL BATTERIES.
· If a battery is
swallowed, call a doctor immediately.
should be kept away from children who still might put things in their
· Use only
1.5-volt alkaline AA-size batteries—2 of them.
batteries with correct polarity—that is, with the "+" and/or
"-" on both batteries aligned with the "+" and/or
"-" markings in the battery compartment.
· Use only
batteries of the same type.
· Do not mix old
and new batteries.
· Do not mix
alkaline, standard (carbon-zinc), or rechargeable (nickel-cadmium)
· Do not use
· Do not try to
recharge non-rechargeable batteries.
· The supply
terminals must not be short-circuited.
exhausted or corroded batteries.
· Dispose of old
batteries lawfully and promptly.
batteries to prevent corrosion if the FlashMaster will not be used for at
least 2 weeks.
· Do not expose
batteries to fire or heat since batteries may explode or leak corrosive or
toxic material, etc.
TO INSTALL BATTERIES
the safety instructions set forth below under “SAFETY INSTRUCTIONS”,
an adult should:
open the loosely-hinged
battery compartment door after carefully loosening its screw with a
screwdriver. Neither the door nor the screw should be removed entirely.
2 new AA-size 1.5-volt alkaline batteries with correct polarity (+,-)
following the illustration inside the battery compartment.
the compartment door and tighten the screw.
batteries "resets" the FlashMaster—restoring all its
original settings and erasing its temporary memory, including all stored
results and missed or “entered” problems.
MORE MAINTENANCE INSTRUCTIONS
Use common sense to protect the Flashmaster and children.
Handle the FlashMaster gently and carefully.
Do not drop the FlashMaster.
When the FlashMaster is carried in a backpack,
it should be located, cushioned, and/or wrapped in order to protect
it—especially its display (“LCD”) and keys.
Keep the FlashMaster dry. If it gets wet, dry it immediately.
Do not expose it to severe cold or high heat. For example, do not leave
it on the dashboard of a car.
Wipe it with a damp cloth to clean it. Do not use cleaning solvents or
strong detergents or chemicals.
If “REPLACE BATTERIES” blinks, new ones are needed.
Multiplication Tables, Division Tables, Addition Tables, and Subtraction Tables
The FlashMaster is the key to