1. 서론
This manual provides comprehensive instructions for the safe and efficient operation of your U.S. Solid Precision Lab Scale. Please read this manual thoroughly before use and retain it for future reference. This analytical balance is designed for precise weighing in laboratory, industrial, and educational settings, offering a capacity of 5000g with 0.01g readability.
2. 안전수칙
- Always operate the scale on a stable, level, and vibration-free surface.
- 저울을 극한의 온도, 습도 또는 직사광선에 노출시키지 마십시오.
- 저울의 최대 용량인 5000g을 초과하여 과부하를 주지 마십시오.
- 계량 접시를 깨끗하게 유지하고 이물질이 없도록 하세요.
- 제공된 전원 어댑터만 사용하세요.
- Avoid sudden impacts or dropping the scale.
3. 설정 및 설치
3.1 풀기
Carefully remove the scale and all accessories from the packaging. Verify that all components listed in the packing list are present. The package should include the scale, stainless steel weighing pan, and power adapter.
3.2 배치
Place the scale on a firm, level surface away from drafts, vibrations, and direct heat sources. Ensure adequate space around the scale for operation and ventilation.
3.3 저울 수평 맞추기
The scale must be perfectly level for accurate measurements. Use the adjustable feet at the bottom of the scale and the bubble level indicator to achieve proper leveling.

이미지: 앞면 view of the U.S. Solid Precision Lab Scale, showing the bubble level indicator on the left side of the display panel.

Image: Diagram illustrating how to adjust the leveling feet until the bubble is centered, ensuring proper horizontal adjustment for accuracy.
3.4 Power Connection and Warm-up
Connect the provided power adapter to the scale and then to a suitable power outlet. For optimal accuracy, allow the scale to warm up for at least 30 minutes after connecting to power or after a power loss before performing any measurements.
Video: This video demonstrates the initial setup of the U.S. Solid Precision Lab Scale, including connecting the power supply and the recommended 30-minute warm-up period for optimal performance.
4. 사용 설명서
4.1 기본 계량
- 를 누르세요 켜짐/꺼짐 버튼을 눌러 저울을 켭니다.
- 디스플레이에 "0.00g"이 표시될 때까지 기다리세요.
- Place the item to be weighed on the center of the stainless steel pan.
- LCD 화면에 표시된 안정 중량을 읽으십시오.
4.2 단위 환산
The scale supports 19 measurement units. Press the 단위 button to cycle through the available units (g, kg, ct, T, TAR, dr, PKT, GN, TMR, gsm, tlJ, mo, dwt, oz, lb, tlT, ozt, tlH, %).

Image: Visual representation of the 19 different measurement units supported by the U.S. Solid Precision Lab Scale, including grams, kilograms, carats, and more.
4.3 용기 기능
To subtract the weight of a container, place the empty container on the pan and press the 공차/칼로리 button. The display will reset to "0.00g". You can then add the item to be weighed into the container, and only the net weight of the item will be displayed.
4.4 개수 계수 기능
The scale can count pieces of uniform weight. To use this function:
- 다음으로 배치ample quantity (e.g., 10, 20, 50, 100, 150, 200, 250, or 500 pieces) of the items to be counted on the pan.
- 를 누르고 계세요 쿠 화면에 "PCS"가 나타날 때까지 버튼을 누르십시오.
- 사용하세요 단위 s를 선택하려면 버튼을 누르세요ample quantity that matches the number of items on the pan.
- 누르다 공차/칼로리 to confirm. The display will now show the number of pieces.
- Add more items to the pan, and the scale will display the total count.

Image: Illustration of the piece counting feature, demonstrating how to set sample sizes (10, 20, 50, etc.) for accurate item counting.
4.5 백라이트 설정
To adjust the backlight behavior:
- 를 누르세요 쿠 button to choose between C0-OFF, C0-1, or C0-5.
- C0-OFF: Backlight is always on.
- C0-1: Backlight will turn off after 1 second of inactivity.
- C0-5: Backlight will turn off after 5 seconds of inactivity.
- 마지막으로 클릭하세요 살갈퀴 until the program ends and returns to 0.00.
Video: This segment demonstrates how to adjust the backlight settings of the scale, allowing users to choose between always-on, 1-second, or 5-second inactivity timeouts for the backlight.
4.6 Unit Package Locking
To lock specific unit packages for quick access:
- 를 누르고 계세요 쿠 button. Release it when "C0-OFF" is displayed.
- 딸깍 하는 소리 살갈퀴 to choose C06-1.
- 를 누르세요 쿠 button to cycle through C06-1, C06-2, up to C06-16, each representing a different combination of units.
- 마지막으로 클릭하세요 살갈퀴 until the program ends and returns to 0.00.
Video: This segment illustrates how to lock specific unit packages on the scale, allowing users to customize and quickly switch between preferred sets of measurement units.
5. RS232 Interface Communication
The U.S. Solid Precision Lab Scale features an RS232 interface for connecting to a computer or printer, enabling serial data exchange. This allows for data logging and integration with other systems.

이미지: 측면 view of the U.S. Solid Precision Lab Scale, highlighting the RS232 interface port for external connectivity.
5.1 Key Output Mode Setting (C5-2)
In Key Output Mode, the scale sends weighing data to the connected device only when the 단위 버튼이 눌렸습니다.
- 를 누르고 계세요 쿠 button. Release it when "C0-OFF" is displayed.
- 딸깍 하는 소리 살갈퀴 to choose C5-0.
- 를 누르세요 쿠 button to choose C5-2.
- 마지막으로, 살갈퀴 button to enter into key output mode.
- To output data, open "Uartassist" software (or similar serial terminal software), set Serial Port to COM3, Baud Rate to 9600, Data Bits to 8, Parity to None, and Stop Bits to One. Click "Open serial port".
- 누를 때마다 단위 button on the scale, the computer will output the current weighing data.
Video: This segment demonstrates how to set the scale to "Key Output" mode (C5-2) for USB interface testing. It shows connecting the scale to a computer and manually triggering data output by pressing the UNIT button.
5.2 Continuous Output Mode Setting (C5-0)
In Continuous Output Mode, the scale continuously sends weighing data to the connected device without requiring manual input.
- 를 누르고 계세요 쿠 button. Release it when "C0-OFF" is displayed.
- 딸깍 하는 소리 살갈퀴 to choose C5-0.
- 마지막으로, 살갈퀴 button to enter into continuous output mode.
- With "Uartassist" software (or similar serial terminal software) open and configured (COM3, 9600 baud, 8 data bits, no parity, one stop bit), click "Open serial port". The weighing results will be continuously output on the computer.
Video: This segment demonstrates how to set the scale to "Continuous Output" mode (C5-0) for USB interface testing. It shows the scale continuously sending weighing data to a connected computer.
6. 교정
Regular calibration ensures the accuracy of your scale. The scale supports manual calibration.
- Ensure the scale is on a stable surface and has completed its warm-up period.
- With the scale displaying "0.00g", press and hold the 공차/칼로리 button until "CAL" appears.
- 그러면 디스플레이에 무게 값이 깜빡이며 표시됩니다(예: "2000g"). 이 값이 필요한 교정용 무게입니다.
- Carefully place the specified calibration weight onto the center of the pan.
- Wait for the display to stabilize and show "PASS" or return to "0.00g".
- Remove the calibration weight. The scale is now calibrated.

Image: Diagram illustrating the calibration process, emphasizing the need to recalibrate after moving the balance or before use, and to hold the TARE/CAL button for instructions.
7. 유지관리 및 관리
- 청소: Wipe the scale's exterior with a soft, damp cloth. Do not use abrasive cleaners or immerse the scale in water. The stainless steel pan can be removed for separate cleaning.
- 저장: When not in use for extended periods, store the scale in a dry, dust-free environment.
- 점검: 주기적으로 전원 코드를 점검하여 손상 여부를 확인하세요.
8. 문제 해결
| 문제 | 가능한 원인 | 해결책 |
|---|---|---|
| 스케일이 켜지지 않음 | No power, faulty adapter, or power outlet issue. | Check power connection, try a different outlet, ensure adapter is functional. |
| 부정확한 판독 | Not level, drafts, vibrations, not warmed up, needs calibration, or overloaded. | Level the scale, move to a stable location, allow warm-up, perform calibration, ensure weight is within capacity. |
| 디스플레이에 "O-Ld"가 표시됩니다. | 초과 적재. | 손상을 방지하기 위해 과도한 무게를 즉시 제거하십시오. |
| RS232 통신 실패 | Incorrect port settings, cable issue, or wrong output mode. | Verify COM port, baud rate, data bits, parity, and stop bits. Check cable connection. Ensure correct output mode (Key or Continuous) is selected. |
9. 사양
- 상표: 미국 솔리드
- 모델: 5000g x 0.01g Analytical Balance
- 용량: 5000그램(5kg)
- 가독성: 0.01 Grams (10 mg)
- 디스플레이 유형: 백라이트가있는 LCD
- 인터페이스: RS232
- 측정 단위: 19 units (g, kg, ct, T, TAR, dr, PKT, GN, TMR, gsm, tlJ, mo, dwt, oz, lb, tlT, ozt, tlH, %)
- 응용 프로그램: Check-weighing, Tare, Piece Counting, Manual Calibration, Overload Protection
- 재료: ABS 하우징 및 스테인리스 스틸 팬
- 제품 크기: 8.9 x 8.7 x 3.2 인치
- 품목 무게: 2.9 파운드
- 힘: AC 어댑터(포함)
10. 보증 및 지원
For warranty information and technical support, please refer to the warranty card included with your product or visit the official U.S. Solid web사이트. 구매 증빙 자료로 구매 영수증을 보관하세요.
연락처 정보: 자세한 내용은 제조사 공식 웹사이트를 참조하십시오. website or contact details provided in the product packaging for support.