Casio DF-120EM User's Guide

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Casio DF-120EM Calculator Specification

The Casio DF-120EM is a desktop calculator designed to provide efficient and reliable performance for both professional and personal use. It features a large, 12-digit display that ensures clear visibility of numbers, reducing errors in reading and calculations. The calculator is equipped with dual power sources, utilizing both solar energy and a backup battery, ensuring uninterrupted functionality even in low-light conditions. The DF-120EM includes essential mathematical functions such as addition, subtraction, multiplication, and division, alongside advanced capabilities like tax and currency conversions, percentage calculations, and profit margin computations. This enhances its utility for business and accounting applications. The calculator's design emphasizes user comfort and efficiency, featuring large, responsive keys that facilitate fast data entry and minimize input errors. Its durable plastic construction ensures longevity, while its compact form factor makes it suitable for any desktop setting without occupying excessive space. The inclusion of a backspace key allows for quick corrections, and the auto power-off function conserves energy when not in use. The Casio DF-120EM stands out with its cost-effectiveness and user-friendly interface, making it an ideal choice for users seeking a robust, straightforward calculating tool.

Casio DF-120EM Calculator F.A.Q.

How do I perform a basic addition operation on the Casio DF-120EM calculator?

To perform a basic addition, simply enter the first number, press the '+' key, enter the second number, and then press the '=' key to get the result.

What should I do if the calculator display is not turning on?

First, check if the calculator has a functional battery. Replace the battery if necessary. Ensure that the solar panel is exposed to light if you are using it in a dimly lit area.

How can I calculate a percentage using the Casio DF-120EM?

To calculate a percentage, enter the number you want to find the percentage of, press the 'x' key, enter the percentage number, then press the '%' key and finally press '=' to get the result.

How do I clear an entry if I make a mistake while entering numbers?

To clear an entry, simply press the 'C' button to clear the last entry you made. If you want to clear all entries, press the 'AC' button.

How can I troubleshoot if the keys on my calculator are not responding?

Check if any debris is lodged between the keys and carefully clean the keypad area. If the problem persists, perform a reset by removing and reinserting the battery.

What is the procedure to replace the battery in the Casio DF-120EM?

To replace the battery, remove the battery cover at the back of the calculator, take out the old battery, and insert a new one. Ensure the battery is placed with the correct polarity.

How do I use the memory function on the Casio DF-120EM calculator?

To store a number in memory, press the 'M+' key after entering the number. To recall the stored number, press the 'MR' key. To clear the memory, press the 'MC' key.

How can I perform a division operation and get a decimal result?

Enter the dividend, press the '÷' key, enter the divisor, and press '=' to get the decimal result of the division operation.

Why does the calculator show an error when performing a calculation?

An error may occur if you attempt to divide by zero or if the result exceeds the calculator’s display limit. Check your inputs and ensure they're valid for the operation.

How do I ensure accurate calculations with the Casio DF-120EM?

Ensure the calculator is on a stable surface, confirm your inputs before pressing '=', and regularly check the battery and solar panel for optimal performance.