Introducció
This manual provides detailed instructions for the proper use and maintenance of your CASIO MS-20YC desktop calculator. Please read it thoroughly before use to ensure optimal performance and longevity of your device. This calculator is designed for everyday calculations, offering a range of basic and advanced functions.
Configuració
Font d'alimentació
Your CASIO MS-20YC calculator operates on solar power with a backup battery. Ensure sufficient light for optimal performance. The backup battery is pre-installed to provide power in low-light conditions.
- Energia solar: The calculator primarily uses solar energy when sufficient light is available.
- Bateria de seguretat: A nonstandard battery is included and installed to ensure continuous operation when solar power is insufficient.
- Apagat automàtic: The calculator features an automatic shut-off function to conserve battery life when not in use.
Ús inicial
Upon first use, ensure the calculator is exposed to light. If the display is blank or dim, press the AC (All Clear) button. The calculator is ready for use once the display shows '0'.

Image: CASIO MS-20YC Desktop Calculator. This image shows the calculator's front view, highlighting its 12-digit display and key layout.
Instruccions de funcionament
Càlculs bàsics
Enter numbers using the numeric keys (0-9) and the decimal point (.). Use the arithmetic operators for addition (+), subtraction (-), multiplication (*), and division (/). Press the equals key (=) to display the result.
- Addició:
[Number 1] [+] [Number 2] [=] - Resta:
[Number 1] [-] [Number 2] [=] - Multiplicació:
[Number 1] [*] [Number 2] [=] - Divisió:
[Number 1] [/] [Number 2] [=]
S'han acabat les funcions clauview
| clau | Funció |
|---|---|
| AC | All Clear: Clears all entries and memory. |
| C (Retrocés) | Clear Entry / Backspace: Deletes the last digit entered or clears the current entry. |
| +/- | Sign Change: Changes the sign of the displayed number (positive to negative, or vice versa). |
| 00 | Double Zero: Enters two zeros simultaneously. |
| % | Percenttage / Markup: Performs percentage calculations and markup calculations. |
| IMPOST+ / IMPOST- | Tax Calculation: Adds or subtracts a pre-set tax rate. |
| M+, M-, MR, MC | Memory Functions: Add to memory, subtract from memory, recall memory, clear memory. |
| √ (Square Root) | Calcula l'arrel quadrada del nombre mostrat. |
Advanced Calculations
- Percenttage Càlcul: Thanks to CASIO's unique input logic, the absolute value of the percentage is displayed before markup on the base. For markup calculation, use the % clau.
- Càlcul d'impostos: The calculator allows for tax calculations with display of gross, net, and tax amounts. The tax rate can be saved for convenience. Refer to the full manual for setting the tax rate.
- Càlcul del temps: Perform calculations in hours:minutes:seconds format and convert results to decimal format.
- Constant Calculation: This feature allows for repetitive calculations using a constant value.
Manteniment
Neteja
To clean your calculator, gently wipe the surface with a soft, dry cloth. Do not use abrasive cleaners, solvents, or chemical sprays, as these can damage the display or casing.
Emmagatzematge
Store the calculator in a cool, dry place away from direct sunlight and extreme temperatures. Avoid placing heavy objects on top of the calculator to prevent damage to the display or keys.
Canvi de bateria
If the display becomes consistently dim even in sufficient light, the backup battery may need replacement. Battery replacement should ideally be performed by an authorized service center to ensure proper handling and to avoid voiding any warranty.
Resolució de problemes
- La pantalla està en blanc o té poca llum:
Ensure the calculator is exposed to adequate light. If the issue persists, the backup battery may be low or depleted. - Càlculs incorrectes:
Premeu AC to clear all previous calculations and memory. Re-enter your calculation carefully. - Les tecles no responen:
Check for any debris lodged under the keys. Gently clean around the keys. If the problem continues, contact customer support. - Calculator turns off unexpectedly:
This is likely the automatic shut-off feature. If it occurs too frequently during active use, ensure sufficient light for solar power or consider battery replacement.
Especificacions
| Característica | Detall |
|---|---|
| Marca | Casio |
| Model | MS-20YC |
| Dimensions (L x A x A) | 10.1 x 15.5 x 1.8 cm (aprox. 3.98" de llargada x 6.1" d'amplada x 0.7" d'alçada) |
| Mostra | 12-digit LCD, 8.0 x 2.7 cm, Digit height 1.7 cm, Calculation function indicator, 1,000s separators |
| Font d'alimentació | Solar powered with backup battery (1 Nonstandard Battery included) |
| Tipus de clau | Smooth-operating plastic keys with key rollover |
| Pes | 118 grams |
| Característiques especials | Time calculation, Tax calculation, Advanced percentage calculation, Square root, Constant calculation, 3-key memory, Backspace key, +/- key, Double zero key (00), Non-slip rubber feet |
Garantia i Suport
For detailed warranty information, terms, and conditions, please refer to the documentation included with your original purchase. For customer support, technical assistance, or service inquiries, please visit the official Casio weblloc web o poseu-vos en contacte amb el vostre distribuïdor local de Casio.