1. Introduction
This manual provides essential instructions for the proper use and maintenance of your Casio SL-160VER Basic Calculator. Designed for everyday calculations, this compact device features an 8-digit extra-large LCD display, dual power (solar and battery), and convenient functions like Euro conversion and percentage calculation.

Figure 1: Casio SL-160VER Basic Calculator
Please read this manual thoroughly to ensure optimal performance and longevity of your calculator.
2. Key Features
- Dual Power Source: Operates on both solar energy and a single LR54 battery, ensuring reliable performance in various lighting conditions.
- 8-Digit Extra-Large LCD Display: Provides clear and easy-to-read numbers.
- Protective Cover: A durable cover that folds back 360 degrees, protecting the display and keys when not in use.
- Euro Conversion Function: Facilitates quick currency conversions.
- Percentage Calculation: Simplifies percentage-based computations.
- Independent Memory: Allows for storing and recalling values for complex calculations.
- Compact and Lightweight Design: Dimensions of 87 x 58 x 8 mm and a weight of 35g make it highly portable.
3. Setup
3.1 Power Source
The Casio SL-160VER calculator utilizes a dual power system: solar and battery. The solar panel is located above the display and powers the calculator in well-lit environments. In dim lighting or when solar power is insufficient, the pre-installed LR54 battery automatically takes over.
3.2 Initial Use
The calculator is ready for use upon removal from its packaging. Ensure the protective cover is folded back to expose the display and keys. If the display is blank, ensure adequate light for the solar panel or check the battery status as described in the Maintenance section.
4. Operating Instructions
4.1 Basic Arithmetic Operations
To perform basic calculations:
- Enter the first number.
- Press the desired operation key (+, -, ×, or ÷).
- Enter the second number.
- Press the = key to display the result.
4.2 Percentage Calculation (%)
To calculate percentages:
- To add/subtract a percentage: Enter the base number, press + or -, enter the percentage value, then press %.
- To find a percentage of a number: Enter the base number, press ×, enter the percentage value, then press %.
4.3 Memory Functions
The calculator includes independent memory functions:
- M+ (Memory Plus): Adds the currently displayed value to the memory.
- M- (Memory Minus): Subtracts the currently displayed value from the memory.
- MRC (Memory Recall/Clear):
- Press once to recall the value stored in memory.
- Press twice consecutively to clear the memory (set it to zero).
4.4 Euro Conversion
The calculator features a Euro conversion function. To use this, you typically need to set a conversion rate. Refer to the detailed instructions provided with your calculator or the official Casio website for specific steps on setting and using the Euro conversion rate.
4.5 Clear Keys
- AC (All Clear): Clears all entries, operations, and memory.
- C (Clear Entry): Clears the last entered number or operation, allowing you to correct mistakes without clearing the entire calculation.
5. Maintenance
5.1 Cleaning
To clean your calculator, gently wipe the surface with a soft, dry cloth. Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the display or casing.
5.2 Battery Replacement
The Casio SL-160VER uses one LR54 button cell battery. If the display becomes dim or unresponsive even in sufficient light, the battery may need replacement.
- Turn the calculator over to access the battery compartment, usually located on the back.
- Carefully open the battery compartment cover (a small screw or latch may secure it).
- Remove the old LR54 battery.
- Insert a new LR54 battery with the correct polarity (+ side facing up).
- Securely close the battery compartment cover.
Note: Dispose of used batteries according to local regulations.
5.3 Storage
When not in use for extended periods, store the calculator in a cool, dry place. Avoid exposing it to extreme temperatures, high humidity, or direct sunlight, which can affect its performance and lifespan.
6. Troubleshooting
- Display is blank or dim:
- Ensure the calculator is in a well-lit area for solar power.
- If the issue persists, the LR54 battery may need replacement (refer to Section 5.2).
- Incorrect calculations:
- Press AC to clear all previous entries and memory, then re-enter your calculation.
- Verify that you are pressing the correct keys and operations.
- Calculator is unresponsive:
- Try removing and reinserting the LR54 battery.
- If the problem persists, contact Casio customer support.
7. Specifications
| Feature | Specification |
|---|---|
| Model Name | SL-160VER |
| Brand | Casio |
| Display Type | 8-Digit Extra-Large LCD |
| Power Source | Solar and 1 x LR54 Battery |
| Material | Plastic |
| Dimensions (W x D x H) | 87 x 58 x 8 mm (approx. 13 x 1.5 x 18 cm as per product dimensions) |
| Weight | 35 g |
| Color | Navy |
| Type of Calculator | Basic / Business |
8. Warranty and Support
For warranty information, please refer to the documentation included with your purchase or visit the official Casio website. Casio provides customer support for product inquiries, technical assistance, and service requests.
You can typically find support contact details and FAQs on the official Casio website:
Please have your model number (SL-160VER) ready when contacting support.





