1. Inngangur
This manual provides essential information for the proper use and maintenance of your Casio SL-320TER Pocket Calculator. Please read these instructions carefully before using the calculator to ensure optimal performance and longevity.
2. Uppsetning
2.1 Aflgjafi
The Casio SL-320TER calculator utilizes a two-way power system: solar power and a single LR44 button-cell battery. The solar cell operates in well-lit environments, while the battery provides power in low-light conditions.
- Sólarorka: Ensure the calculator's solar panel is exposed to sufficient light for operation.
- Rafhlöðuorka: The calculator comes with one LR44 battery installed. If the display becomes dim or unresponsive in low light, the battery may need replacement.
2.2 Upphafleg notkun
Upon first use, or after replacing the battery, the calculator should power on automatically when exposed to light or by pressing the AC (All Clear) button. If the display is blank, ensure adequate lighting or check the battery.

Mynd 1: Framan view of the Casio SL-320TER Pocket Calculator, illustrating the 12-digit display and key layout.
3. Notkunarleiðbeiningar
3.1 Grunnútreikningar
Framkvæma venjulegar reikniaðgerðir:
- Viðbót: Sláðu inn fyrstu töluna, ýttu á +, sláðu inn aðra töluna, ýttu á =.
- Frádráttur: Sláðu inn fyrstu töluna, ýttu á -, sláðu inn aðra töluna, ýttu á =.
- Margföldun: Sláðu inn fyrstu töluna, ýttu á x, sláðu inn aðra töluna, ýttu á =.
- Deild: Sláðu inn fyrstu töluna, ýttu á ÷, sláðu inn aðra töluna, ýttu á =.
- Aukastafur: Notaðu . button for decimal values.
- Double Zero: Notaðu 00 button for quick entry of two zeros.
3.2 Clear Functions
- C (Hreinsa færsla): Clears the last entered number or the current calculation entry without affecting previous calculations or memory.
- AC (allt á hreinu): Clears all entries, calculations, and memory content, resetting the calculator to its initial state.
3.3 Minnisvirkni
The calculator includes independent memory for storing and recalling values:
- M+ (Minni Plus): Bætir birtu gildi við minnið.
- M- (Minni mínus): Dregur birt gildi frá minninu.
- MRC (Minnis muna/hreinsa): Ýttu einu sinni til að endurkalla gildið sem vistað er í minninu. Ýttu tvisvar til að hreinsa minnið.
3.4 Tax Calculations
The calculator features dedicated tax calculation functions. First, set the tax rate:
- Ýttu á SETJA.
- Sláðu inn skattprósentunatage (t.d. 5 fyrir 5%).
- Ýttu á SKATTPRÓS. The tax rate is now stored.
To perform tax calculations:
- TAX+ (Add Tax): Enter the original amount, then press SKATT+ to display the amount including tax.
- TAX- (Subtract Tax): Enter the amount including tax, then press SKATT- to display the original amount before tax.
3.5 prósenttage Útreikningar
Notaðu % button for percentage calculations, including profit margin calculations.
- Example (Simple Percentage): To calculate 15% of 200: Enter 200 x 15 %.
- Example (Add Percentage): To add 15% to 200: Enter 200 + 15 %.
3.6 Currency Conversion
The calculator supports currency conversion, specifically between a local currency and the Euro. First, set the Euro exchange rate:
- Ýttu á SETJA.
- Enter the exchange rate (e.g., 1.25 if 1 Euro = 1.25 Local units).
- Ýttu á VERÐA. The exchange rate is now stored.
To perform currency conversions:
- Local to Euro: Enter the amount in Local currency, then press Evru.
- Euro to Local: Enter the amount in Euro, then press Staðbundið.
4. Viðhald
4.1 Þrif
To clean the calculator, wipe it with a soft, dry cloth. Do not use abrasive cleaners, solvents, or wet cloths, as these can damage the casing eða innri íhlutir.
4.2 Skipt um rafhlöðu
When the display becomes dim or unresponsive, replace the LR44 battery. To replace the battery:
- Turn the calculator over.
- Finndu hlífina á rafhlöðuhólfinu.
- Notaðu lítinn skrúfjárn til að opna hólfið.
- Fjarlægðu gömlu LR44 rafhlöðuna og settu nýja í, gætið þess að pólunin (+/-) sé rétt.
- Lokaðu hlífinni á rafhlöðuhólfinu örugglega.
4.3 Geymsla
Geymið reiknivélina á köldum, þurrum stað fjarri beinu sólarljósi og miklum hita. Forðist að setja þunga hluti ofan á reiknivélina.
5. Bilanagreining
- Tómur eða dimmur skjár:
- Ensure the solar panel is exposed to sufficient light.
- Replace the LR44 battery if it is depleted. - Incorrect Calculation Results:
- Ýttu á AC til að hreinsa allar fyrri útreikningar og minni.
- Double-check your input values and operation sequence. - Hnappar svara ekki:
- Ýttu á AC to reset the calculator.
- If the issue persists, try replacing the battery.
6. Tæknilýsing
| Gerð: | SL-320TER+-S |
| Skjár: | 12 Digits, LCD |
| Aflgjafi: | Two-way power (Solar cell and 1 x LR44 battery) |
| Tegund rafhlöðu: | LR44 (innifalið) |
| Stærðir (u.þ.b.): | Height: 12 cm (4.8 in) - Compact pocket size |
| Þyngd: | 100 grams (0.1 Kilograms) |
| Efni: | Plast |
| Eiginleikar: | Tax calculations, Currency conversion, Independent memory, Profit margin %, Automatic shutdown |

Figure 2: Size comparison of the Casio SL-320TER calculator, highlighting its compact design with a height of approximately 12 cm.
7. Ábyrgð og stuðningur
For warranty information and customer support, please refer to the documentation included with your purchase or visit the official Casio webGeymið kaupkvittunina ef þið viljið gera kröfur um ábyrgð.





