Sharp EL339HB Semi-Desk Executive Metal Top 12-Digit Calculator User Manual

1. Úvod

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 viewing angles for user comfort.

Obrázek 1: Přední strana view of the Sharp EL339HB Semi-Desk Executive Calculator, showing the 12-digit display and key layout.

2. Nastavení a napájení

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 První použití

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 Automatické vypnutí

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 klíč.

2.3 Nastavení stojánku

Pro optimální 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.

Obrázek 2: Zadní view of the calculator showing the adjustable kickstand for ergonomic viewIng.

3. Návod k obsluze

This section details the various functions and operations of the Sharp EL339HB calculator.

3.1 Základní aritmetické operace

Zadejte čísla pomocí numerické klávesnice. Použijte + (přidání), - (odčítání), x (násobení) a ÷ (division) keys for calculations. Press = pro zobrazení výsledku.

• 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 Funkce paměti

The calculator includes a four-key memory system:

• M+: Přičte zobrazenou hodnotu do paměti.
• M-: Odečte zobrazenou hodnotu z paměti.
• RM: Recalls the value stored in memory to the display.
• CM: Clears the memory.

3.3 Speciální funkce

• 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 výpočty.
• +/-: 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: Plovoucí desetinná čárka.
• 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.

4. Údržba

4.1 Čištění

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 Výměna baterie

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. Řešení problémů

6. Specifikace

• Značka: Ostrý
• Model: SHREL339HB
• Barva: Šedá
• Typ kalkulačky: Finanční
• Zobrazit: 12-Digit Liquid Crystal Display (LCD)
• Zdroj napájení: Solar Powered with Battery Backup (1 Product Specific battery included)
• Rozměry produktu: 10.2 x 6.3 x 1 palce
• Hmotnost položky: 3.52 unce
• Vlastnosti: Four-key memory, Grand Total, Cost/Sell/Margin, Percent, Sign Change, Answer Check, Low-noise keyboard, Metal case, Kickstand.

7. Záruka a podpora

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.

Oficiální uživatelská příručka ve formátu PDF je k dispozici ke stažení: Stáhnout uživatelskou příručku (PDF).