Casio NJ-120D User's Guide

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Casio NJ-120D Calculator Specification

The Casio NJ-120D Calculator is designed for efficient and reliable performance, catering primarily to business and academic needs. Its design emphasizes a sleek and ergonomic build, ensuring comfortable use for extended periods. The calculator features a 12-digit display which provides clear and precise readings, making it suitable for complex calculations. The display is angled for optimal visibility, reducing glare and ensuring ease of viewing under various lighting conditions.

The NJ-120D is equipped with dual power sources: solar and battery. This dual-power functionality ensures the calculator remains operational even in low-light environments, enhancing its reliability and reducing the need for frequent battery replacements. The calculator includes an array of essential functions such as percentage calculations, tax calculations, and currency conversion, making it versatile for various financial tasks.

Its robust build incorporates durable plastic keys designed to withstand heavy usage, ensuring longevity and consistent performance. The calculator's memory function allows users to store and recall important figures with ease, streamlining multi-step calculations. Additionally, the NJ-120D incorporates an auto power-off feature, conserving battery life by shutting down the device when not in use.

Designed with user accessibility in mind, the calculator's layout is intuitive, with clearly labeled keys that allow for quick and accurate data entry. The Casio NJ-120D Calculator stands out as a reliable and efficient tool, ideal for users seeking a balance of functionality and durability in a compact device.

Casio NJ-120D Calculator F.A.Q.

How do I change the battery in the Casio NJ-120D calculator?

To change the battery, first turn off the calculator. Open the battery compartment located at the back, remove the old battery, and replace it with a new one. Ensure that the new battery is placed correctly with the positive side facing up. Close the compartment securely.

What should I do if the calculator display is dim or not visible?

If the display is dim, check the battery and replace it if necessary. Ensure that the calculator is not exposed to direct sunlight for extended periods, as this can affect the display visibility. If the problem persists, reset the calculator.

How can I reset the Casio NJ-120D calculator to its default settings?

To reset the calculator, press and hold the 'AC' button for a few seconds. This will clear any temporary data and reset the calculator to its default settings.

Why is the calculator not turning on even with a new battery?

Ensure that the battery is installed correctly with the correct orientation. Check for any corrosion on the battery contacts and clean them if necessary. If the issue persists, the calculator may need professional servicing.

How do I use the percentage function on the NJ-120D calculator?

To calculate a percentage, enter the base number, press the multiplication ('x') key, enter the percentage, and then press the percentage ('%') key. For example, to find 20% of 150, input: 150 x 20 % =.

What is the best way to clean the calculator?

Use a soft, dry cloth to gently wipe the exterior of the calculator. Avoid using any harsh chemicals or water directly on the device. For stubborn dirt, a slightly damp cloth can be used, but ensure the calculator is turned off and dry it immediately afterward.

Can I perform currency conversions on the Casio NJ-120D calculator?

The NJ-120D does not have a dedicated currency conversion feature. However, you can manually divide or multiply by the exchange rate to convert currencies.

How do I perform memory calculations on this calculator?

To use memory functions, press 'M+' to add the displayed number to memory, 'M-' to subtract, 'MR' to recall the stored value, and 'MC' to clear the memory.

What should I do if the buttons are not responding properly?

First, check if the calculator needs a new battery. If the buttons still do not respond, gently clean around them with a soft brush to remove any debris. Avoid using sharp objects that might damage the keys.

How can I extend the battery life of my Casio NJ-120D calculator?

To extend battery life, turn off the calculator when not in use, avoid leaving it in extreme temperatures, and use the display light only when necessary. Regularly check and replace the battery to ensure optimal performance.