Introduction
This manual provides detailed instructions for the operation and maintenance of your OSALO OS-130T desktop calculator. Designed for ease of use, this 12-digit calculator features a large LCD display, comfortable keys, and dual power sources (solar and battery) for reliable performance in various lighting conditions. Its robust construction and non-slip feet ensure stability during use.
Image: The OSALO OS-130T desktop calculator in a typical office setting, demonstrating its compact size and user-friendly design.
Product Features
- Large 12-Digit LCD Display: Provides clear and easy-to-read numbers.
- Dual Power Source: Operates on solar power in well-lit environments and switches to battery power (1 x LR1130, included) in low light.
- Comfortable and Sensitive Keys: Designed for quick and accurate input.
- Non-Slip Rubber Feet: Ensures stability on your desk during operation.
- Tax Function: Dedicated keys for calculating tax (TAX+, TAX-).
- Memory Functions: Includes Memory Plus (M+), Memory Minus (M-), Memory Recall (MRC), and Grand Total (GT).
Image: Key features of the OSALO OS-130T, including its large display, ergonomic viewing angle, and tax calculation capabilities.
Image: Detailed view of the calculator's display, button design, and non-slip features.
Setup
Power Source
The OSALO OS-130T calculator is powered by both solar energy and a single LR1130 button cell battery. The battery is pre-installed. The calculator will automatically switch between solar and battery power depending on the ambient light conditions. No initial setup is required for power, simply ensure adequate lighting for solar operation or rely on the installed battery.
Battery Replacement
If the display becomes dim or unresponsive in low light, the LR1130 battery may need replacement. To replace the battery:
- Turn the calculator over.
- Locate the battery compartment cover.
- Use a small screwdriver to open the compartment.
- Remove the old LR1130 battery and insert a new one, ensuring correct polarity (+/-).
- Close the battery compartment securely.
Operating Instructions
Familiarize yourself with the calculator's key layout and functions for efficient use.
Image: Key functions and their locations on the OSALO OS-130T calculator.
Basic Calculations
- Addition (+), Subtraction (-), Multiplication (×), Division (÷): Enter the first number, press the desired operation key, enter the second number, then press the equals (=) key for the result.
- Percentage (%): To calculate a percentage of a number (e.g., 10% of 200), enter 200, press ×, enter 10, press %, then press =.
- Square Root (√): Enter the number, then press the √ key.
Memory Functions
- Memory Plus (M+): Adds the displayed value to the memory.
- Memory Minus (M-): Subtracts the displayed value from the memory.
- Memory Recall/Clear (MRC): Press once to recall the memory value. Press twice to clear the memory.
- Grand Total (GT): Accumulates the results of all calculations. Press GT to display the grand total.
Tax Calculation Function
The calculator includes dedicated keys for tax calculations (TAX+, TAX-).
Image: Examples of tax function operations.
- Setting the Tax Rate:
Press AC. Enter the desired tax rate (e.g., 8 for 8%). Press RATE, then TAX+. The tax rate is now stored. - Calculating Total Amount with Tax:
Press AC. Enter the original amount (e.g., 200). Press TAX+. The display will show the total amount including tax. Press TAX+ again to see the tax amount. - Calculating Total Amount Before Tax:
Press AC. Enter the total amount including tax (e.g., 216). Press TAX-. The display will show the amount before tax. Press TAX- again to see the tax amount. - Checking the Stored Tax Rate:
Press AC. Press RATE, then TAX-. The stored tax rate will be displayed.
Correction and Clearing
- Back Space (►): Deletes the last digit entered.
- Clear Entry (C/CE): Clears the last entry.
- All Clear (AC): Clears all entries and calculations, resetting the calculator to its initial state.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the calculator. Do not use abrasive cleaners or solvents.
- Storage: Store the calculator in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid Impact: Do not drop the calculator or subject it to strong impacts, as this may damage internal components.
- Liquid Exposure: Keep the calculator away from liquids. If it gets wet, turn it off immediately (if possible) and allow it to dry completely before attempting to use it again.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is dim or blank. | Insufficient light for solar power, or low battery. | Move the calculator to a brighter area. If the problem persists, replace the LR1130 battery. |
| Keys are unresponsive. | Calculator may be frozen or dirty keys. | Press the AC button to reset. Clean around the keys with a soft, dry cloth. |
| Incorrect calculation results. | Incorrect input or incorrect use of functions. | Double-check your input and ensure you are using the correct function keys. Press AC to clear and restart the calculation. |
Specifications
Image: Dimensions and weight specifications of the OSALO OS-130T calculator.
- Model: OS-130T
- Display: 12-Digit Large LCD
- Dimensions: 17.5 cm (L) x 12.6 cm (W) x 3.1 cm (H)
- Weight: Approximately 169g
- Power Source: Solar and 1 x LR1130 Alkaline Battery (included)
- Battery Life: Approximately 2 years (with typical use)
- Material: ABS Plastic
- Screen Size: 4.5 inches
- Color: Brown (as per product specifications, though product images show a beige/white color scheme)
Warranty and Support
For warranty information and customer support, please refer to the documentation provided with your purchase or contact OSALO customer service through their official website or the retailer where the product was purchased. Keep your proof of purchase for warranty claims.
