Appendix

Cautions

Fluid from a leaking battery accidentally entering an eye could result in serious injury. Should this occur, wash with clean water and immediately consult a doctor.

Should fluid from a leaking battery come in contact with your skin or clothes, immediately wash with clean water.

If the product is not to be used for some time, to avoid damage to the unit from leaking batteries, remove them and store in a safe place.

Do not leave exhausted batteries inside the product.

Do not fit partially used batteries, and be sure not to mix batteries of different types.

Keep batteries out of the reach of the children.

Exhausted batteries left in the calculator may leak and damage the calculator.

Explosion risk may be caused by incorrect handling.

Do not throw batteries into a fire as they may explode.

Replacement procedure

All memory contents will be cleared if you remove both batteries at the same time. Always replace each battery before removing the other one.

Make sure the power is turned off before replacing the batteries.

Do not press j until the battery replacement procedure is complete.

1.Turn the power off by pressing @ o.

2. Remove the two screws.

3.Lift the battery cover to remove.

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Sharp EL-5250, EL-5230 operation manual Replacement procedure, 116

EL-5230, EL-5250 specifications

The Sharp EL-5250 and EL-5230 are advanced scientific calculators that cater to students, professionals, and anyone in need of a reliable tool for complex calculations. Both models are designed with a blend of functionality, portability, and user-friendliness, making them excellent choices for math and engineering tasks.

The Sharp EL-5250 is equipped with a wide range of features ideal for higher-level calculations. It supports over 500 functions, including trigonometric, exponential, logarithmic, and statistical computations. The calculator also includes built-in memory functions, allowing users to store and recall values effortlessly. The large, easy-to-read LCD display can present multiple lines of data simultaneously, enhancing clarity and reducing the need for repetitive calculations.

On the other hand, the EL-5230, while slightly less advanced, still offers a robust set of functions. This model is particularly well-suited for students in high school or early college, providing essential functionalities for algebra, geometry, and basic statistics. Its 240 functions cover a variety of mathematical disciplines, making it a versatile option for different educational needs.

Both calculators feature Sharp's unique "MathPrint" technology, which is a standout characteristic allowing users to view fractions, square roots, and other expressions in a format more akin to traditional textbook layouts. This technology greatly enhances comprehension and usability, particularly for visual learners.

The calculators are powered by dual power sources, utilizing both solar and battery power, ensuring reliability in diverse environments. The compact and lightweight design of the EL-5250 and EL-5230 makes them highly portable. Users can easily carry them in a backpack or briefcase without added bulk.

Durability is another aspect where Sharp excels. The calculators are built to withstand regular use, featuring a sturdy exterior. Additionally, Sharp provides a protective cover that helps prevent damage during transport, making these calculators a long-term investment for users.

In summary, both the Sharp EL-5250 and EL-5230 deliver exceptional performance with their extensive features and advanced technology. They are perfect for those who require reliable and efficient tools for various mathematical tasks, whether in education or professional settings. With their user-friendly designs and durability, these calculators continue to be reliable companions for anyone working with numbers.