Casio FX-55 User Manual download pdf (Page 18)

E-17

Replacing the Battery

A low battery is indicated by a dim display, even if contrast is adjusted, or by

failure of figures to appear on the display immediately after you turn on the

calculator. If this happens, replace the battery with a new one.

Important: Removing the battery will cause all of the calculator’s memory

contents to be deleted.

1. Press 1A(OFF) to turn off the calculator.

To ensure that you do not accidentally turn on power while replacing the

battery, slide the hard case onto the front of the calculator.

2. Remove the cover as shown in the illustration and

replace the battery, taking care that its plus (+) and

minus (–) ends are facing correctly.

3. Replace the cover.

4. Initialize the calculator: Or3(All)=(Yes)

Do not skip the above step! •

Screw

Specifications

Power Requirements:

Built-in solar cell; button battery LR44 (GPA76) × 1

Approximate Battery Life:

3 years (based on one hour of operation per day)

Operating Temperature: 0°C to 40°C (32°F to 104°F)

Dimensions: 11.1 (H) × 80 (W) × 162 (D) mm

⬙ (H) × 3

⬙ (W) × 6

⬙ (D)

Approximate Weight: 95 g (3.4 oz) including the battery

Frequently Asked Questions

How can I perform display results the same way I did on a model that

does not have Natural Textbook Display?

Perform the following key operation: s2(LineO). See “Configuring

the Calculator Setup” on page E-4 for more information.

How can I change a fraction form result to decimal form?

How can I change a fraction form result produced by a division

operation to decimal form?

See “Toggling Calculation Results” on page E-8 for the procedure.

What is the difference between Ans memory and independent

memory?

Both types of memory acts like “containers” for temporary storage of a

single value.

•

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Casio FX-55 User Manual Page 18