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Chapter 1
Getting Acquainted
— Read This First!
1. BEFORE USING THE CALCULATOR FOR THE
FIRST TIME...
Batteries are not loaded in your calculator at the factory.
Be sure to follow the procedure below to load batteries and adjust the display contrast before
trying to use the calculator for the first time.
1. Turn over the calculator and rotate the center knob to the left.
• During the remainder of this procedure, take care that you do not
accidentally press the
o
key.
2. Lift up the battery compartment cover (
1
) and remove it (
2
).
3. Load the four batteries that come with the calculator.
• When loading batteries other than those that come with the
calculator, be sure to load full set of four AAA-size alkaline or
rechargeable nickel-metal hydride batteries.
• Make sure that the positive (+) and negative (–) ends of the
batteries are facing correctly.
4. Replace the battery compartment cover. While pressing down on the cover, rotate the
center knob to the right.
Important!
• You may not be able to rotate the center knob if you do not press down on the battery
compartment cover as you do.
• Splash resistance, dust resistance, and shock resistance are maximized while the battery
compartment cover is fully and securely closed.
• Even a slight amount of foreign matter (a single hair, speck of dust, etc.) on the contact
surface of the battery compartment cover can allow moisture and/or dust to get into the
interior of the calculator.
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