1. 서론
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. 안전 정보
- Do not expose the calculator to direct sunlight for extended periods or to extreme temperatures.
- 계산기를 떨어뜨리거나 강한 충격을 가하지 마십시오.
- 계산기를 물이나 기타 액체로부터 멀리하십시오.
- 계산기를 분해하거나 개조하지 마십시오. 모든 수리는 자격을 갖춘 전문가에게 맡기십시오.
- 현지 규정에 따라 배터리를 폐기하십시오.
3. 제품 오버view
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.
그림 1: 앞쪽 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.
주요 특징:
- 14-digit angled LCD display for clear view주고받음.
- Dual power source: Solar and battery (1 x LR-54/LR44).
- Dedicated tax calculation keys (+TAX, -TAX, RATE SET, RATE RECALL).
- 퍼센tage calculation function (%).
- Square root calculation (√).
- 4-key memory functions (M+, M-, RM, CM).
- Clear Entry (CE) and All Clear (CA/C) keys.
구성 요소:
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.
그림 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. 설정
전원:
The EL-145T BL calculator is designed for dual power operation:
- 태양열 발전: The calculator primarily operates on solar power when sufficient light is available. Ensure the solar panel (located above the display) is exposed to light.
- 배터리 전원: A backup battery (1 x LR-54 or LR44) is included to provide power in low-light conditions.
배터리 설치/교체:
- Ensure the calculator is turned off or in a well-lit area to utilize solar power.
- 계산기 뒷면에서 배터리 덮개를 찾으세요.
- 덮개를 조심스럽게 제거하십시오.
- Insert a new LR-54 or LR44 battery, ensuring the correct polarity (+/-) as indicated inside the compartment.
- 배터리함 덮개를 단단히 다시 닫으십시오.
Note: The calculator may power on automatically once sufficient light or battery power is detected.
5. 사용 설명서
기본 산술 연산:
Enter numbers and use the standard arithmetic keys (+, -, ×, ÷) followed by the equals key (=) to perform calculations.
- 덧셈: [Number 1] [+] [Number 2] [=]
- 빼기: [Number 1] [-] [Number 2] [=]
- 곱셈: [Number 1] [×] [Number 2] [=]
- 분할: [Number 1] [¶] [Number 2] [=]
Clear Functions:
- [CA/C] (All Clear): 모든 입력 내용과 메모리를 지워 계산기를 초기화합니다.
- [CE] (Clear Entry): Clears the last entered number or the current calculation result without affecting previous entries or memory.
퍼센tage 계산:
퍼센트를 계산하려면tages, use the [%] 열쇠.
- Examp르 : Calculate 15% of 200.
입력하다 [200] [×] [15] [%]결과는 30이 됩니다. - Examp르 : Add 15% to 200.
입력하다 [200] [+] [15] [%]결과는 230이 됩니다.
세금 계산:
The calculator features dedicated keys for tax calculations. First, set the tax rate.
- Setting the Tax Rate:
세율을 입력하세요(예: [8] for 8%). Press [RATE SET]세율이 저장되었습니다. - Adding Tax:
Enter the amount (e.g., [100]). 누르다 [+TAX]. The display will show the amount with tax added. - Subtracting Tax:
Enter the amount (e.g., [108]). 누르다 [-TAX]. The display will show the amount with tax removed. - 세율 상기하기:
누르다 [RATE RECALL] 에게 view 현재 설정된 세율.
메모리 기능:
The 4-key memory allows you to store and recall values.
- [M+] (Memory Plus): 표시된 값을 메모리에 추가합니다.
- [M-] (Memory Minus): 표시된 값을 메모리에서 뺍니다.
- [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).
제곱근 계산:
숫자의 제곱근을 계산하려면 숫자를 입력한 다음 키를 누르세요. [√] 열쇠.
- Examp르 : Calculate the square root of 81.
입력하다 [81] [√]결과는 9이 됩니다.
6. 유지관리
- 청소: 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.
- 저장: When not in use for extended periods, store the calculator in a cool, dry place away from direct sunlight and extreme temperatures.
- 배터리 수명: 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. 문제 해결
| 문제 | 가능한 원인 | 해결책 |
|---|---|---|
| 디스플레이가 비어 있거나 어둡습니다. | 태양광 발전에 필요한 빛이 부족하거나 배터리 잔량이 부족합니다. | Move the calculator to a brighter area. Replace the LR-54/LR44 battery. |
| 잘못된 계산 결과입니다. | Incorrect key input, or memory not cleared. | Double-check your input. Press [CA/C] to clear all and restart the calculation. Clear memory with [CM]. |
| 키가 반응하지 않습니다. | Calculator frozen, or power issue. | 누르다 [CA/C]. If unresponsive, remove and reinsert the battery (if applicable) or ensure sufficient light for solar power. |
8. 사양
| 특징 | 세부 사항 |
|---|---|
| 모델 | EL-145T BL |
| 표시하다 | 14 자리 LCD |
| 전원 | Solar Powered with 1 x LR44 (or LR-54) battery backup |
| 기능 | Basic arithmetic, Percentage (%), Tax calculation (+TAX, -TAX, RATE SET, RATE RECALL), Square Root (√), 4-key Memory (M+, M-, RM, CM) |
| 치수(길이 x 너비 x 높이) | 크기는 약 11.2cm x 17.6cm x 1.3cm (4.41" x 6.93" x 0.51")입니다. |
| 무게 | 약 125g(0.28파운드) |
| 재료 | 플라스틱 |
| 색상 | 검정/파란색 |
9. 보증 및 지원
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 web사이트 또는 고객 서비스 부서에 문의하십시오.
