دليل مستخدم آلة حاسبة شارب EL-145T BL

1. المقدمة

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. معلومات السلامة

• Do not expose the calculator to direct sunlight for extended periods or to extreme temperatures.
• تجنب إسقاط الآلة الحاسبة أو تعريضها لصدمات قوية.
• Keep the calculator away from water and other liquids.
• لا تحاول تفكيك الآلة الحاسبة أو تعديلها. يجب إحالة جميع أعمال الصيانة إلى فنيين مؤهلين.
• التخلص من البطاريات وفقا للقوانين المحلية.

3. انتهى المنتجview

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.

الشكل 1: أمام 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.

المميزات الرئيسية:

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

عناصر:

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.

الشكل 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. الإعداد

مصدر الطاقة:

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

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

تركيب / استبدال البطارية:

1. Ensure the calculator is turned off or in a well-lit area to utilize solar power.
2. حدد مكان غطاء حجرة البطارية على الجزء الخلفي من الآلة الحاسبة.
3. قم بإزالة الغطاء بعناية.
4. Insert a new LR-54 or LR44 battery, ensuring the correct polarity (+/-) as indicated inside the compartment.
5. أعد تركيب غطاء حجرة البطارية بشكل آمن.

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

5. تعليمات التشغيل

العمليات الحسابية الأساسية:

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

• إضافة: [Number 1] [+] [Number 2] [=]
• الطرح: [Number 1] [-] [Number 2] [=]
• الضرب: [Number 1] [×] [Number 2] [=]
• قسم: [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.

بيرسنtagالحساب الإلكتروني:

لحساب النسبة المئويةtages, use the [٪] مفتاح.

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

حساب الضريبة:

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

1. Setting the Tax Rate:
   Enter the tax rate (e.g., [8] for 8%). Press [RATE SET]. The tax rate is now stored.
2. Adding Tax:
   Enter the amount (e.g., [100]). يضعط [+TAX]. The display will show the amount with tax added.
3. Subtracting Tax:
   Enter the amount (e.g., [108]). يضعط [-TAX]. The display will show the amount with tax removed.
4. Recalling Tax Rate:
   يضعط [RATE RECALL] ل view معدل الضريبة المحدد حالياً.

وظائف الذاكرة:

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

• [M+] (Memory Plus): يضيف القيمة المعروضة إلى الذاكرة.
• [M-] (Memory Minus): يطرح القيمة المعروضة من الذاكرة.
• [RM] (Recall Memory): Displays the value currently stored in memory.
• [CM] (Clear Memory): Clears the memory content. (Often combined with RM, pressing RM twice clears memory).

حساب الجذر التربيعي:

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

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

6. الصيانة

• تنظيف: 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.
• تخزين: When not in use for extended periods, store the calculator in a cool, dry place away from direct sunlight and extreme temperatures.
• عمر البطارية: 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. استكشاف الأخطاء وإصلاحها

8. المواصفات

9. الضمان والدعم

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 webالموقع أو الاتصال بقسم خدمة العملاء.