1. Wprowadzenie
The Sharp EL339HB is a semi-desk executive calculator designed for efficient and precise calculations. It features an extra-large, 12-digit liquid crystal display (LCD) with punctuation for enhanced readability. Built with a durable metal case and a low-noise keyboard, this calculator is ideal for professional environments. Its dual power source (solar with battery backup) ensures reliable operation.
Key functions include a four-key memory system (memory plus, memory minus, recall memory, and clear memory), grand total key, cost/sell/margin calculations, percent key, sign change key, and an answer check feature. The integrated kickstand provides flexible viewkąty nachylenia dla wygody użytkownika.
Rycina 1: Przód view of the Sharp EL339HB Semi-Desk Executive Calculator, showing the 12-digit display and key layout.
2. Konfiguracja i zasilanie
The Sharp EL339HB calculator operates on a dual power system: solar power and battery backup. This ensures continuous operation even in varying light conditions.
2.1 Pierwsze użycie
Upon first use, ensure the calculator is exposed to sufficient light for the solar panel to activate. If the display does not immediately appear, press the ON/C·CE key. The calculator is ready for use when "0." appears on the display.
2.2 Automatyczne wyłączanie zasilania
To conserve power, the calculator features an automatic power-off function. It will turn off after approximately 7 minutes of inactivity. To reactivate, simply press the ON/C·CE klawisz.
2.3 Kickstand Adjustment
Dla optymalnego viewing, the calculator is equipped with a kickstand on its rear. Gently pull out the kickstand to prop the calculator at an angle. Push it back in when not needed for flat storage.
Rysunek 2: Tył view of the calculator showing the adjustable kickstand for ergonomic viewing.
3. Instrukcja obsługi
This section details the various functions and operations of the Sharp EL339HB calculator.
3.1 Podstawowe operacje arytmetyczne
Wprowadź liczby za pomocą klawiatury numerycznej. Użyj + (dodatek), - (odejmowanie), x (mnożenie) i ÷ (division) keys for calculations. Press = aby wyświetlić wynik.
- ON/C·CE: Turns the calculator on. When on, acts as Clear Entry (clears the last entered number) with a single press, and Clear All (clears all calculations and memory) with a double press.
- CA: Clear All. Clears all entries and memory.
3.2 Funkcje pamięci
The calculator includes a four-key memory system:
- M+: Dodaje wyświetloną wartość do pamięci.
- M-: Odejmuje wyświetloną wartość od pamięci.
- RM: Recalls the value stored in memory to the display.
- CM: Clears the memory.
3.3 Funkcje specjalne
- GT: Grand Total. Accumulates the results of all calculations. Pressing GT displays the accumulated total.
- COST/SELL/MGN: These keys are used for cost, selling price, and margin calculations. Refer to the detailed user manual for specific sequences.
- %: Percent key. Used for percentage obliczenia.
- +/-: Sign Change key. Changes the sign of the displayed number (positive to negative, or negative to positive).
- ANSWER CHECK: Allows you to verify previous calculations.
3.4 Decimal Point Settings
The calculator offers various decimal point settings, typically controlled by a slider switch:
- F: Pływający przecinek dziesiętny.
- 3, 2, 1, 0: Fixed decimal places (3, 2, 1, or 0 digits after the decimal point).
- A: Add mode (automatically adds decimal point for currency calculations).
Additionally, there is a "5/4" switch which controls rounding up or down for fixed decimal settings.
Wideo 1: Produkt w całościview demonstrating key features and operation of the Sharp EL339HB calculator.
4. Konserwacja
4.1 Czyszczenie
To maintain the calculator's appearance and functionality, wipe the surface with a soft, dry cloth. Do not use abrasive cleaners, solvents, or immerse the calculator in water.
4.2 Wymiana baterii
The calculator includes a battery backup. If the display becomes dim or unresponsive in adequate light, the battery may need replacement. The battery compartment is located on the back of the unit. Refer to the full user manual for detailed instructions on how to safely replace the battery. Use only the specified battery type.
5. Rozwiązywanie Problemów
| Problem | Możliwa przyczyna | Rozwiązanie |
|---|---|---|
| Wyświetlacz jest pusty lub przyciemniony. | Niewystarczające oświetlenie dla panelu słonecznego lub niski poziom naładowania akumulatora. | Ensure the calculator is in a well-lit area. If the problem persists, replace the battery. |
| Calculator does not turn off with a dedicated key. | This model features an automatic power-off function. | The calculator will automatically turn off after approximately 7 minutes of inactivity. This is normal operation. |
| Nieprawidłowe wyniki obliczeń. | Incorrect key input, or incorrect decimal setting. | Naciskać CA to clear all entries and memory, then re-enter the calculation. Check the decimal point setting switch (F, 3, 2, 1, 0, A) and the 5/4 rounding switch. |
6. Specyfikacje
- Marka: Ostry
- Model: SHREL339HB
- Kolor: Szary
- Typ kalkulatora: Budżetowy
- Wyświetlacz: 12-Digit Liquid Crystal Display (LCD)
- Źródło zasilania: Solar Powered with Battery Backup (1 Product Specific battery included)
- Wymiary produktu: 10.2 x 6.3 x 1 cala
- Waga przedmiotu: 3.52 uncji
- Cechy: Four-key memory, Grand Total, Cost/Sell/Margin, Percent, Sign Change, Answer Check, Low-noise keyboard, Metal case, Kickstand.
7. Gwarancja i wsparcie
For detailed warranty information, please refer to the documentation included with your product or visit the official Sharp website. For technical support or service inquiries, please contact Sharp customer service.
Oficjalną instrukcję obsługi w formacie PDF można pobrać: Pobierz instrukcję obsługi (PDF).
