Introduction
This manual provides detailed instructions for the operation and maintenance of your Sharp EL-377WB Business Calculator. Designed for efficiency and ease of use, this 10-digit calculator features an extra-large LCD for clear display and durable, well-spaced keys for accurate data entry. Its twin-power operation ensures reliable performance in various environments.
What's in the Box
- Sharp EL-377WB Business Calculator
- User Manual (this document)
Features
- 10-Digit Extra-Large LCD Display: Provides crisp, clear digits for easy reading and reduced errors.
- Durable and Appropriately Spaced Keys: Ensures fast and accurate data entry.
- Backspace Key: Allows quick, single-digit corrections.
- Twin-Power Operation: Runs on solar energy with a battery backup (1 CR2 battery, included) for consistent, reliable performance.
- Automatic Tax Keys: Simplifies tax calculations.
- Percent Key: For quick percentage calculations.
- Square Root Key: For mathematical operations.
- Four-Key Independent Memory: (M+, M-, RM, CM) for storing and recalling values.
- Automatic Power Down: Conserves battery life.
- Compact and Portable Design: Dimensions of 4.7 x 2.8 x 0.1 inches and weighing 1.84 ounces.
Figure 1: Front view of the Sharp EL-377WB Business Calculator, showcasing its large display and key layout.
Figure 2: Dimensions of the Sharp EL-377WB calculator, illustrating its compact size for portability.
Figure 3: Illustration of the calculator's dual power source: a solar panel for primary power and a battery backup for low-light conditions.
Setup
Powering On
The Sharp EL-377WB calculator utilizes a twin-power system, operating on solar energy in well-lit environments and switching to battery power (1 CR2 battery, included) when light is insufficient. To power on the calculator, press the ON/CA button. The display will show "0".
Initial Use
No specific initial setup is required beyond powering on. Ensure adequate lighting for solar operation or confirm the battery is correctly installed if operating in dim conditions.
Operating Instructions
Basic Arithmetic Operations
Perform standard calculations using the number keys (0-9), decimal point (.), and operation keys (+, -, ×, ÷). Press the = key to display the result.
- Addition: Enter first number, press +, enter second number, press =.
- Subtraction: Enter first number, press -, enter second number, press =.
- Multiplication: Enter first number, press ×, enter second number, press =.
- Division: Enter first number, press ÷, enter second number, press =.
Special Functions
- Clear Entry (CE) / All Clear (CA): Press C-CE once to clear the last entry. Press it twice to clear all calculations and memory (All Clear).
- Backspace Key (→): Use this key to delete the last digit entered.
- Percent Key (%): To calculate percentages, e.g., 100 + 10% = 110.
- Square Root Key (√): Calculates the square root of the displayed number.
- Sign Change (+/-): Changes the sign of the displayed number from positive to negative or vice versa.
Memory Functions
The calculator features a four-key independent memory system:
- M+: Adds the displayed value to the memory.
- M-: Subtracts the displayed value from the memory.
- RM (Recall Memory): Recalls the value currently stored in memory to the display.
- CM (Clear Memory): Clears the memory.
Tax Calculation Keys
The automatic tax keys simplify calculations involving tax rates. You can set and recall a tax rate.
- Setting Tax Rate:
- Press RATE SET.
- Enter the tax rate (e.g., 5 for 5%).
- Press RATE SET again to save.
- Calculating with Tax:
- Enter the amount.
- Press +TAX to add tax.
- Press -TAX to subtract tax.
- Recalling Tax Rate: Press RATE RECALL to view the currently set tax rate.
Video 1: Demonstration of key features including tax keys, square root, and backspace on the Sharp EL-377WB calculator.
Maintenance
Cleaning
To clean the calculator, use a soft, dry cloth. Do not use abrasive cleaners, solvents, or spray directly onto the unit. Keep the solar panel clean and unobstructed for optimal performance.
Battery Replacement
The calculator uses one CR2 battery. If the display becomes dim or unresponsive in low light, the battery may need replacement. To replace the battery:
- Ensure the calculator is powered off.
- Locate the battery compartment on the back of the unit.
- Carefully remove the screws securing the battery cover.
- Remove the old battery and insert a new CR2 battery, observing the correct polarity (+/-).
- Replace the battery cover and secure it with the screws.
Dispose of old batteries according to local regulations.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank or dim. | Insufficient light for solar power, or low battery. | Move the calculator to a brighter area. If the issue persists, replace the battery. |
| Incorrect calculation results. | Incorrect input, or memory function active. | Press C-CE twice to clear all entries and memory. Re-enter the calculation carefully. |
| Keys are unresponsive. | Calculator may be in an error state, or battery is completely drained. | Press ON/CA. If still unresponsive, replace the battery. |
Specifications
- Product Dimensions: 4.7 x 2.8 x 0.1 inches
- Item Weight: 1.84 ounces
- Model Number: EL-377WB
- Power Source: Twin-power (Solar and 1 CR2 Battery)
- Display: 10-Digit Extra-Large LCD
- Calculator Type: Business
- Color: White
- Manufacturer: Victor Technology LLC
- Date First Available: November 4, 2016
Warranty and Support
For warranty information and technical support, please refer to the documentation included with your purchase or visit the official Sharp Calculators website. Keep your proof of purchase for warranty claims.
For additional resources and product information, you may visit the Sharp Store on Amazon.
