1. 서론
Thank you for choosing the Aurora DT661 Business Calculator. This manual provides detailed instructions on how to set up, operate, and maintain your calculator to ensure optimal performance. The DT661 is designed for business and financial calculations, featuring a large 12-digit display, durable metal casing, and specialized functions like Cost-Sell-Margin and Tax calculations.

Figure 1: Aurora DT661 Business Calculator Overview
2. 설정
2.1 전원
The Aurora DT661 calculator operates using both solar power and a single product-specific alkaline battery (included). For optimal performance, ensure the solar panel is exposed to sufficient light. The battery provides power in low-light conditions or when solar power is insufficient.
2.2 초기 사용
Upon first use, or after extended storage, the display may be blank. Place the calculator in a well-lit area to activate the solar power, or press the 'AC' button to clear any residual memory and ensure the display is active.
3. 사용 설명서
3.1 기본 산술 연산
Perform standard calculations using the number keys (0-9, 00, .), and operation keys (+, -, X, ÷, =).
- 추가(+): Enter first number, press '+', enter second number, press '='.
- 빼기(-): Enter first number, press '-', enter second number, press '='.
- Multiplication (X): Enter first number, press 'X', enter second number, press '='.
- 나누기(÷): Enter first number, press '÷', enter second number, press '='.
3.2 클리어 함수
- AC(올 클리어): Clears all entries and memory, resetting the calculator to its initial state.
- C/CE (Clear Entry/Clear): Clears the last entered number. Pressing it twice typically clears the entire calculation without affecting memory.
3.3 특수 기능
- Cost-Sell-Margin (CSM): This function allows you to calculate any one of Cost, Selling Price, or Margin when the other two values are known.
- Tax Function (+TAX, -TAX): Ideal for VAT calculations.
- Programmable Currency Conversion: Allows setting a conversion rate for quick currency exchanges. Refer to the detailed instructions in the product packaging for setting specific rates.
- Memory Functions (M+, M-, MRC):
- 남+: 표시된 값을 메모리에 추가합니다.
- 중-: 표시된 값을 메모리에서 뺍니다.
- MRC(메모리 호출/삭제): 한 번 누르면 저장된 값을 불러옵니다. 두 번 누르면 저장된 값을 지웁니다.
- 퍼센tag전자(%): 퍼센트를 계산합니다tag에스.
- 제곱근(√): 표시된 숫자의 제곱근을 계산합니다.
- +/- (부호 변경): 표시된 숫자의 부호를 바꿉니다(양수를 음수로, 또는 음수를 양수로).
4. 유지관리
4.1 청소
계산기를 청소할 때는 부드럽고 마른 천을 사용하세요. 잘 지워지지 않는 얼룩은 약간 거친 천으로 닦아내세요.amp cloth with mild soap can be used, but ensure no liquid enters the calculator. Do not use abrasive cleaners or solvents.
4.2 배터리 교체
While the calculator is primarily solar-powered, the included alkaline battery provides backup. If the display becomes dim or unresponsive in low light, the battery may need replacement. Refer to the battery compartment on the back of the unit for specific battery type and replacement instructions.
4.3 보관
장기간 사용하지 않을 때는 계산기를 직사광선과 극한 온도 변화를 피해 서늘하고 건조한 곳에 보관하십시오.
5. 문제 해결
- 디스플레이가 비어 있거나 어둡습니다.
- 태양광 패널이 충분한 빛에 노출되도록 하세요.
- The battery may be low or depleted. Replace the battery if necessary.
- Press the 'AC' button to reset the display.
- 잘못된 계산:
- Ensure correct input sequence.
- Clear previous calculations using 'AC' or 'C/CE'.
- Check if memory (M) is active and clear it if not intended.
- 키가 응답하지 않습니다.
- Ensure the calculator is clean and free of debris around the keys.
- Press 'AC' to reset the unit.
6. 사양
| 특징 | 세부 사항 |
|---|---|
| 모델 번호 | DT661 |
| 표시하다 | 12자리 LCD |
| 전원 | Solar Powered with Alkaline Battery Backup |
| 재료 | 금속 플라스틱 |
| 품목 무게 | 3.95 온스 |
| 제품 치수 | 1 x 1 x 0.1 인치 |
| 주요 기능 | Cost-Sell-Margin, Tax, Memory, Percentage, Square Root, Currency Conversion |
7. 보증 및 지원
For information regarding warranty coverage and customer support, please refer to the warranty card included with your product packaging or visit the official Aurora web사이트. 보증 청구에 대비해 구매 증빙 자료로 구매 영수증을 보관하세요.





