Introduction
This manual provides comprehensive instructions for the operation and maintenance of your Sharp EL-122N-BK 12-digit electronic calculator. Please read this manual thoroughly before using the calculator to ensure proper function and longevity.
The Sharp EL-122N-BK is a basic electronic calculator designed for everyday calculations. Its features include:
- 12-digit display for clear readability.
- Easy-to-use key layout for efficient data entry.
- Multiple functions for various calculation needs.
- Durable construction for reliable performance.
Product Overview
Figure 1: Angled view of the Sharp EL-122N-BK calculator, showing the display and key layout.
Figure 2: Top-down view of the Sharp EL-122N-BK calculator, highlighting the solar panel and key arrangement.
Figure 3: Side view of the Sharp EL-122N-BK calculator, illustrating its compact dimensions (16 cm or 6.3 inches in length).
Setup
Power Source
The Sharp EL-122N-BK calculator is powered by both solar energy and a battery. This dual power system ensures reliable operation in various lighting conditions.
- Solar Power: The calculator primarily uses solar power when sufficient light is available. Ensure the solar panel, located above the display, is exposed to light for optimal performance.
- Battery Power: In low-light conditions, the calculator automatically switches to battery power. The battery is pre-installed and generally does not require user intervention for initial setup.
Initial Use
- Place the calculator in a well-lit area.
- Press the ON/C button (or any numeric key) to turn on the calculator. The display should show "0".
- If the display does not appear, ensure adequate lighting for the solar panel or consider potential battery issues (refer to the Troubleshooting section).
Operating Instructions
This section details the functions of the keys and how to perform various calculations.
Basic Arithmetic Operations
- Addition (+): Enter the first number, press +, enter the second number, then press =.
- Subtraction (-): Enter the first number, press -, enter the second number, then press =.
- Multiplication (×): Enter the first number, press ×, enter the second number, then press =.
- Division (÷): Enter the first number, press ÷, enter the second number, then press =.
Clear Functions
- C (Clear Entry): Clears the last entered number or the current calculation entry without affecting previous operations or memory.
- CA (Clear All): Clears all entries, operations, and memory, resetting the calculator to its initial state.
- OFF: Turns the calculator off. The calculator also has an auto-power off feature to conserve energy.
Memory Functions
- M+ (Memory Plus): Adds the displayed value to the memory.
- M- (Memory Minus): Subtracts the displayed value from the memory.
- RM (Recall Memory): Displays the current value stored in memory.
- CM (Clear Memory): Clears the value stored in memory.
Special Functions
- % (Percentage): Used for percentage calculations. For example, to calculate 10% of 200: enter 200, press ×, enter 10, press %.
- √ (Square Root): Calculates the square root of the displayed number. Enter a number, then press √.
- GT (Grand Total): Accumulates the results of all calculations performed since the last CA or GT press. Press GT to display the grand total.
- MU (Mark-Up): Used for mark-up calculations. For example, to calculate the selling price with a 20% mark-up on a cost of 100: enter 100, press MU, enter 20, press =.
Maintenance
Cleaning
To maintain the calculator's appearance and functionality:
- Wipe the calculator's surface with a soft, dry cloth.
- For stubborn dirt, slightly dampen the cloth with water and mild soap, then wipe dry immediately.
- Do not use abrasive cleaners, solvents, or spray directly onto the calculator.
Storage
Store the calculator in a cool, dry place away from direct sunlight and extreme temperatures when not in use for extended periods.
Troubleshooting
If you encounter issues with your Sharp EL-122N-BK calculator, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank or dim. | Insufficient light for solar panel; low battery. | Move the calculator to a brighter area. If the problem persists, the battery may need replacement (consult a service professional if necessary). |
| Incorrect calculation results. | Incorrect key entry; calculator in an unusual state. | Press CA to clear all operations and memory, then re-enter the calculation carefully. |
| Keys are unresponsive. | Dust or debris under keys; calculator malfunction. | Gently clean around the keys. If the issue persists, the calculator may require service. |
Specifications
The following are the technical specifications for the Sharp EL-122N-BK calculator:
- Model: EL-122N-BK
- Display Type: LCD
- Number of Digits: 12
- Power Source: Battery Powered (Dual power: Solar and Battery)
- Dimensions (Package): 17.7 x 10.7 x 3 cm
- Item Weight: 140 g
- Calculator Type: Standard Function
Support and Warranty
For further assistance or inquiries regarding your Sharp EL-122N-BK calculator, please refer to the retailer or manufacturer's official support channels.
Information regarding specific warranty terms and conditions should be provided at the point of purchase or through the official product documentation. Extended warranty options may be available from third-party providers, such as the 2-Year Extended Warranty by Salama Care mentioned in product listings.
