EL-6520 - Calculator SHARP - Free user manual and instructions
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| Product Type | Pocket calculator |
| Brand | Sharp |
| Model | EL-6520 |
| Display | 10-digit LCD |
| Power Source | Solar cell with LR44 battery backup |
| Dimensions (W x D x H) | 2.8 x 4.5 x 0.5 inches |
| Weight | 2.5 ounces |
| Key Functions | Basic arithmetic, percent, square root, memory, sign change |
| Memory | 1 independent memory (M+/M-/MR/MC) |
| Auto Power Off | Yes, after approximately 7 minutes |
| Operating Temperature | 32°F to 104°F (0°C to 40°C) |
| Battery Replacement | LR44 or equivalent; slide out battery compartment |
| Cleaning | Wipe with a soft dry cloth; do not use solvents |
| Safety Precautions | Keep away from liquids; do not disassemble |
| Spare Parts Availability | Battery (LR44) available at electronics stores |
| Repairability | Battery replacement only; no user-serviceable parts |
Frequently Asked Questions - EL-6520 SHARP
How do I replace the battery on my Sharp EL-6520?
Slide off the battery compartment cover on the back. Remove the old LR44 battery and insert a new one with the positive side up. Replace the cover.
Why is the display dim or blank?
First, try pressing the ON/C button. If still dim, the battery may be low. Replace the backup battery. In bright light, the solar cell powers the calculator.
How do I clear the memory?
Press MC (Memory Clear) to erase the stored value. Alternatively, you can press MR to recall, then MC to clear.
Can I use this calculator without a battery?
Yes, in sufficient light the solar cell powers the calculator. However, the backup battery is needed to retain memory when light is dim.
How do I perform a square root calculation?
Enter the number, then press the √ key. The square root will be displayed.
What does the 'GT' key do?
GT stands for Grand Total. It accumulates the results of each calculation until you press GT again to display the total.
How do I calculate a percentage?
Enter the base number, press ×, enter the percentage, then press %. For example: 200 × 10 % gives 20.
What type of battery does the EL-6520 use?
It uses a LR44 (also known as AG13 or 357) alkaline button cell battery.
How do I add and subtract using memory?
To add a number to memory, press M+ after entering the number. To subtract, press M-. Recall with MR and clear with MC.
What should I do if the keys are unresponsive?
Ensure the calculator is turned on. If keys are stuck, gently clean around them with a soft, dry brush. Avoid liquids. If problem persists, battery may need replacement.
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