Indledning
This manual provides comprehensive instructions for the operation and maintenance of your Texas Instruments TI-108 Basic Calculator. Designed for ease of use, this solar-powered calculator is suitable for various basic arithmetic tasks and classroom environments.
An image showing the Texas Instruments TI-108 basic calculator. It features a blue casing with an 8-digit LCD display at the top. The keys are color-coded: red for operation keys (+, -, x, /, %, square root, +/-, ON/C) and white for number keys (0-9, decimal point) and memory keys (MRC, M-, M+). A solar panel is visible below the display.
Opsætning
The Texas Instruments TI-108 calculator is primarily solar-powered. No battery installation is typically required for initial use under adequate lighting conditions.
- Tænd: Ensure the calculator's solar panel, located above the display, is exposed to sufficient ambient light. The calculator will automatically power on and display '0' when light is detected.
- Initial Clear: Tryk på ON/C key to clear any previous calculations or entries and ensure the display shows '0'.
Betjeningsvejledning
The TI-108 calculator performs standard arithmetic operations and includes memory functions.
Grundlæggende aritmetiske operationer
- Addition (+): Indtast det første tal, tryk på +, indtast det andet tal, og tryk derefter på =.
- Subtraction (-): Indtast det første tal, tryk på -, indtast det andet tal, og tryk derefter på =.
- Multiplication (x): Indtast det første tal, tryk på x, indtast det andet tal, og tryk derefter på =.
- Division (/): Indtast det første tal, tryk på /, indtast det andet tal, og tryk derefter på =.
Særlige funktioner
- Clear (ON/C): Clears the current entry or the entire calculation. Press once to clear the current entry; press twice to clear all.
- Procenttage (%): To calculate a percentage, enter the number, press x, enter the percentage value, then press %. F.eksample, to find 10% of 50: 50 x 10 %.
- Square Root (√): Enter the number, then press √.
- Change Sign (+/-): Changes the sign of the displayed number from positive to negative or vice versa.
Hukommelsesfunktioner
- Memory Plus (M+): Adds the displayed number to the memory.
- Memory Minus (M-): Subtracts the displayed number from the memory.
- Memory Recall/Clear (MRC): Press once to recall the value stored in memory. Press twice to clear the memory.
Opretholdelse
- Rensning: Use a soft, dry cloth to clean the calculator's exterior. Do not use abrasive cleaners or solvents.
- Opbevaring: Store the calculator in a cool, dry place away from direct sunlight when not in use for extended periods. Avoid extreme temperatures and humidity.
- Beskyttelse: Utilize the protective slide case (if included) to prevent scratches and damage to the display and keys.
Fejlfinding
- Skærmen er tom eller svag: Ensure the solar panel is exposed to sufficient light. The calculator requires adequate ambient light to operate.
- Forkerte beregninger: Trykke ON/C twice to clear all previous operations and memory, then re-enter your calculation.
- Tasterne reagerer ikke: Check for any debris lodged around the keys. Gently clean the area. If the issue persists, contact customer support.
Specifikationer
| Feature | Detalje |
|---|---|
| Modelnavn | TI-108 |
| Strømkilde | Solcelledrevet |
| Lommeregner Type | Grundlæggende |
| Farve | Black (as per product description, though image shows blue) |
| Produktdimensioner | 4.49 x 3.11 x 0.67 tommer |
| Varens vægt | 1.44 ounce |
Garantioplysninger
Texas Instruments products are manufactured to high-quality standards. For specific warranty details, please refer to the documentation included with your purchase or visit the official Texas Instruments webwebsted. Gem din købsbevis til garantikrav.
Kundesupport
For further assistance, technical support, or inquiries regarding your Texas Instruments TI-108 calculator, please visit the official Texas Instruments support webwebstedet eller kontakt deres kundeserviceafdeling. Kontaktoplysninger kan typisk findes på producentens webwebsted eller produktemballage.
