User`s guide

E-51

Reference

k Power Requirements and Battery

Replacement

This calculator is powered by a single AAA-size battery (R03 (UM-

4)).

Replacing the Battery

Dim figures on the display of the calculator indicate that battery power

is low. Continued use of the calculator when the battery is low can

result in improper operation. Replace the battery as soon as possible

when display figures becomes dim.

Even if the calculator is operating normally, replace the battery at

least once every two years.

Important!

• Removing the battery from the calculator causes independent

memory contents and values assigned to variables to be cleared.

1 Press 1A(OFF) to turn off the

calculator.

2 On the back of the calculator, remove

the screws and the back cover.

3 Remove the old battery.

4 Load a new battery into the calculator

with its positive

and negative

ends facing correctly.

5 Replace the back cover and secure it

in place with its screws.

6 Perform the following key operation:

O19(CLR)3(All)=(Yes).

•Make sure you perform the above key operation. Do not skip it.

Auto Power Off

Your calculator will turn off automatically if you do not perform any

operation for about six minutes. If this happens, press the O key to

turn the calculator back on.

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