מדריך למשתמש במחשבון Sharp EL-145T BL

1. הקדמה

This manual provides detailed instructions for the proper use and maintenance of your Sharp EL-145T BL 14-digit desktop calculator. Designed for office tasks, this calculator features tax calculation, percentage calculation, root calculation, and a 4-key memory system. It operates using both solar power and a backup battery, ensuring reliable performance.

Please read this manual thoroughly before using the calculator to ensure optimal performance and longevity.

2. מידע בטיחות

• Do not expose the calculator to direct sunlight for extended periods or to extreme temperatures.
• הימנעו מהפלת המחשבון או מחשיפתו לפגיעות חזקות.
• הרחק את המחשבון ממים ונוזלים אחרים.
• Do not attempt to disassemble or modify the calculator. Refer all servicing to qualified personnel.
• השלך סוללות בהתאם לתקנות המקומיות.

3. המוצר נגמרview

The Sharp EL-145T BL is a compact and efficient 14-digit desktop calculator. Its angled LCD display enhances readability, making it suitable for various calculations.

איור 1: חֲזִית view of the Sharp EL-145T BL calculator, showing the 14-digit display, solar panel, and key layout. The calculator features a black body with blue accents.

תכונות עיקריות:

• 14-digit angled LCD display for clear viewing.
• Dual power source: Solar and battery (1 x LR-54/LR44).
• Dedicated tax calculation keys (+TAX, -TAX, RATE SET, RATE RECALL).
• אחוזיםtage calculation function (%).
• Square root calculation (√).
• 4-key memory functions (M+, M-, RM, CM).
• Clear Entry (CE) and All Clear (CA/C) keys.

רכיבים:

The calculator consists of a main unit with a display panel, a solar panel, and a keypad. The keypad includes numeric keys (0-9, .), arithmetic operation keys (+, -, ×, ÷, =), and special function keys.

איור 2: The Sharp EL-145T BL calculator positioned on a wooden desk, demonstrating its compact size and suitability for office environments. A highlighter and sticky note are visible nearby.

4. התקנה

מקור כוח:

The EL-145T BL calculator is designed for dual power operation:

• אנרגיה סולארית: The calculator primarily operates on solar power when sufficient light is available. Ensure the solar panel (located above the display) is exposed to light.
• כוח סוללה: A backup battery (1 x LR-54 or LR44) is included to provide power in low-light conditions.

התקנה/החלפה של סוללה:

1. Ensure the calculator is turned off or in a well-lit area to utilize solar power.
2. אתר את מכסה תא הסוללה בגב המחשבון.
3. הסר בזהירות את הכיסוי.
4. Insert a new LR-54 or LR44 battery, ensuring the correct polarity (+/-) as indicated inside the compartment.
5. החזר היטב את מכסה תא הסוללות.

Note: The calculator may power on automatically once sufficient light or battery power is detected.

5. הוראות הפעלה

פעולות אריתמטיות בסיסיות:

Enter numbers and use the standard arithmetic keys (+, -, ×, ÷) followed by the equals key (=) to perform calculations.

• תוֹסֶפֶת: [Number 1] [+] [Number 2] [=]
• חִסוּר: [Number 1] [-] [Number 2] [=]
• כֶּפֶל: [Number 1] [×] [Number 2] [=]
• חֲלוּקָה: [Number 1] [÷] [Number 2] [=]

Clear Functions:

• [CA/C] (All Clear): Clears all entries and memory, resetting the calculator.
• [CE] (Clear Entry): Clears the last entered number or the current calculation result without affecting previous entries or memory.

אחוזיםtagחישוב אלקטרוני:

כדי לחשב אחוזיםtages, use the [%] מַפְתֵחַ.

• Exampעל: Calculate 15% of 200.
  לְהַכנִיס [200] [×] [15] [%]. The result will be 30.
• Exampעל: Add 15% to 200.
  לְהַכנִיס [200] [+] [15] [%]. The result will be 230.

חישוב מס:

The calculator features dedicated keys for tax calculations. First, set the tax rate.

1. קביעת שיעור המס:
   Enter the tax rate (e.g., [8] for 8%). Press [RATE SET]שיעור המס נשמר כעת.
2. Adding Tax:
   Enter the amount (e.g., [100]). לִלְחוֹץ [+TAX]. The display will show the amount with tax added.
3. Subtracting Tax:
   Enter the amount (e.g., [108]). לִלְחוֹץ [-TAX]. The display will show the amount with tax removed.
4. Recalling Tax Rate:
   לִלְחוֹץ [RATE RECALL] אֶל view the currently set tax rate.

פונקציות זיכרון:

The 4-key memory allows you to store and recall values.

• [M+] (Memory Plus): מוסיף את הערך המוצג לזיכרון.
• [M-] (Memory Minus): מחסר את הערך המוצג מהזיכרון.
• [RM] (Recall Memory): מציג את הערך המאוחסן כעת בזיכרון.
• [CM] (Clear Memory): Clears the memory content. (Often combined with RM, pressing RM twice clears memory).

חישוב שורש ריבועי:

To calculate the square root of a number, enter the number and then press the [√] מַפְתֵחַ.

• Exampעל: Calculate the square root of 81.
  לְהַכנִיס [81] [√]. The result will be 9.

6. תחזוקה

• ניקוי: Use a soft, dry cloth to clean the calculator's exterior. For stubborn dirt, slightly dampen the cloth with water and a mild detergent, then wipe dry immediately. Do not use abrasive cleaners or solvents.
• אִחסוּן: When not in use for extended periods, store the calculator in a cool, dry place away from direct sunlight and extreme temperatures.
• חיי סוללה: The battery life is approximately 2 years when used for 1 hour per day under solar power. Replace the battery when the display becomes dim or erratic in low light.

7. פתרון תקלות

8. מפרטים

9. אחריות ותמיכה

Sharp products are manufactured to high-quality standards. For specific warranty information, please refer to the warranty card included with your purchase or contact your local Sharp customer support. Keep your purchase receipt as proof of purchase.

For further assistance or inquiries, please visit the official Sharp webלאתר או לפנות למחלקת שירות הלקוחות שלהם.