1. Uvod
Thank you for choosing the OSALO OS-8812T Desktop Calculator. This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your calculator. Designed for home and office use, this 12-digit calculator features a large display, comfortable buttons, and essential functions including VAT tax calculation. Please read this manual thoroughly to ensure optimal performance and longevity of your device.
Figure 1.1: OSALO OS-8812T Desktop Calculator
2. Proizvod je gotovview
Familiarize yourself with the calculator's layout and key functions.
Figure 2.1: Key Functions Diagram
- 1. Operation Symbol Display: Shows the current operation symbol (e.g., +, -, ×, ÷).
- 2. GT (Grand Total): Displays the grand total of all calculations performed since the last GT clear.
- 3. M+, M- (Memory Plus/Minus): Adds/subtracts the displayed value to/from the memory.
- MRC (poziv memorije/brisanje): Press once to recall memory, press twice to clear memory.
- 4. Back Space (◀): Briše posljednju unesenu znamenku.
- 5. AC (All Clear): Clears all entries and calculations, including memory.
- C/CE (Clear Entry/Clear): Clears the last entry. Press twice to clear the current calculation.
- 6. TAX+, TAX- (Tax Rate Settings): Used for tax calculations. TAX+ adds tax, TAX- subtracts tax.
- STOPA: Used to set the tax rate.
- 7. MU (Mark-Up): Used for profit margin calculations.
- 8. √ (Root): Izračunava kvadratni korijen prikazanog broja.
The calculator features a 5-inch large LCD display capable of showing up to 12 digits, ensuring clear visibility. The display is tilted at 15 degrees for enhanced viewin udobnost.
Figure 2.2: Calculator Dimensions and 15-degree Display Tilt
The keys are ergonomically designed with a concave shape for comfortable and accurate input.
Figure 2.3: Concave Design Round Buttons
3. Postavljanje
The OSALO OS-8812T calculator operates on dual power: solar energy and a single LR44 battery (included). The battery provides power in low-light conditions, while the solar panel powers the calculator in sufficient light, extending battery life.
3.1. Ugradnja baterije
The calculator comes with an LR44 battery pre-installed. If replacement is needed:
- Turn the calculator over.
- Pronađite poklopac odjeljka za baterije.
- Remove the cover and insert one LR44 battery, ensuring correct polarity (+/-).
- Čvrsto namjestite poklopac odjeljka za baterije.
Figure 3.1: Battery Compartment and Anti-Slip Mat Location
3.2. Uključivanje/isključivanje
The calculator automatically powers on when a key is pressed. It will automatically power off after approximately 8-10 minutes of inactivity to conserve energy.
4. Upute za rad
4.1. Osnovni izračuni
- Dodavanje (+): Enter first number, press +, enter second number, press =.
- Oduzimanje (-): Enter first number, press -, enter second number, press =.
- Množenje (×): Enter first number, press ×, enter second number, press =.
- Dijeljenje (÷): Enter first number, press ÷, enter second number, press =.
- Percentage (%): Enter number, press ×, enter percentage value, press %. (e.g., 100 × 10 % = 10)
- Kvadratni korijen (√): Enter number, press √.
4.2. Tax Function (VAT)
The calculator features a built-in tax function for quick VAT calculations. You can set a custom tax rate.
Figure 4.1: Tax Function Operation Examples
| Svrha | Operacija | Proizlaziti |
|---|---|---|
| Tax Rate Setting (e.g., 8%) | AC → RATE → 8 → RATE | 8. |
| Total Amount 200, Tax Rate 8%, Total Amount After Tax | AC → 200 → TAX+ | 216. (Total) 16. (Tax Amount) |
| Total Amount 216, Tax Rate 8%, Total Amount Before Tax | AC → 216 → TAX- | 200. (Total) 16. (Tax Amount) |
| Tax Rate Check | AC → RATE → TAX- (RECALL) | 8. |
4.3. Funkcije pamćenja
- M+: Dodaje prikazanu vrijednost u memoriju.
- M-: Oduzima prikazanu vrijednost iz memorije.
- MRC: Press once to recall the value stored in memory. Press twice to clear the memory (M).
- GT (ukupni zbroj): Accumulates the results of all calculations. Press GT to display the grand total. The grand total is cleared when AC is pressed.
5. Održavanje
- Clean the calculator with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Izbjegavajte izlaganje kalkulatora ekstremnim temperaturama, vlazi ili izravnoj sunčevoj svjetlosti dulje vrijeme.
- Do not drop or subject the calculator to strong impacts.
- Ako se kalkulator neće koristiti dulje vrijeme, preporučuje se izvaditi bateriju kako bi se spriječilo curenje.
6. Rješavanje problema
- Zaslon je prazan: Ensure there is sufficient light for the solar panel or check if the LR44 battery needs replacement.
- Incorrect calculations: Press the AC button to clear all previous entries and calculations before starting a new one. Ensure correct operation sequence.
- Tipke ne reagiraju: Clean around the keys to remove any debris. If the issue persists, the battery might be low.
- Poruka o pogrešci na zaslonu: Press AC to clear the error and re-enter the calculation. This usually occurs due to overflow or invalid operations.
7. Specifikacije
| Značajka | Specifikacija |
|---|---|
| Model | OS-8812T(Extra Large) |
| Prikaz znamenki | 12 znamenke |
| Veličina zaslona | 5 inča |
| Izvor napajanja | Solar & Battery Powered (1 x LR44 included) |
| Vrsta kalkulatora | Standard Function, Desktop |
| Dimenzije proizvoda | 7.44 x 5.51 x 0.1 inča |
| Težina artikla | 8.6 unci |
| Boja | Bijelo i srebrno |
| Proizvođač | osalo co., ltd. |
| Zemlja podrijetla | Kina |
8. Jamstvo i podrška
OSALO products are manufactured with high-quality materials and undergo strict quality control. For any questions, technical support, or warranty claims, please contact OSALO customer service through the retailer where the product was purchased. Please retain your proof of purchase for warranty purposes.