1. 서론
This manual provides essential instructions for the safe and efficient use of the RIGOL DHO914 Digital Oscilloscope. The DHO914 is a 4-channel oscilloscope featuring a 125 MHz bandwidth, 1.25 GSa/s sampling rate, 12-bit analog-to-digital converter, 50 Mpts memory depth, and a 7-inch 1024x600 pixel touchscreen display. Please read this manual thoroughly before operating the device.
2. 안전 정보
Observe the following safety precautions to prevent injury and avoid damage to the instrument or any products connected to it. This device is designed for use by qualified personnel only.
- 전원: Use only the power cable supplied with the instrument and ensure it is connected to a grounded power outlet.
- 통풍: 적절한 환기를 확보하십시오. 환기구를 막지 마십시오.
- 환경: Operate the instrument in a dry environment, away from moisture, dust, and direct sunlight.
- 프로브 : 볼륨에 대해 정격이 지정된 프로브만 사용하십시오.tage and current being measured. Ensure probes are properly connected before making measurements.
- 청소: 청소하기 전에 전원을 분리하세요. 부드러운 천을 사용하세요.amp 천을 사용하십시오. 연마성 세척제나 용제를 사용하지 마십시오.
- 서비스: 기기를 직접 수리하려고 하지 마십시오. 모든 수리는 자격을 갖춘 서비스 담당자에게 맡기십시오.
3. 설정
3.1 풀기 및 검사
Carefully unpack the oscilloscope and check for any signs of damage during transit. Retain the packaging materials for future transport or storage.
3.2 상자 내용물
그림 3.2.1: Contents of the RIGOL DHO914 Oscilloscope box. The image displays two packaging boxes, the main oscilloscope unit, an EU power adapter, a USB A-B cable, a ground wire, four passive probes (150MHz), and a warranty card with calibration certificate.
The standard package for the RIGOL DHO914 includes:
- Main Unit (RIGOL DHO914 Digital Oscilloscope)
- Power Cable (EU Power Adapter)
- USB Cable (USB A-B Cable)
- 접지선
- Passive Probes (4 units, 150MHz)
- Warranty Card & Calibration Certificate
3.3개 제품 이상view
그림 3.3.1: RIGOL DHO914 Physical Overview. This image illustrates the front panel with its 7-inch display and control buttons, the rear panel with various ports, a side view showing its slim profile, and a detailed view of the control buttons. Dimensions are indicated as 265.36mm length, 77.38mm width, and 161.75mm height, with a weight of 1.78kg.
The DHO914 features a compact design with a 7-inch high-definition touchscreen. The front panel includes the display, control knobs, and buttons for various functions. The rear panel provides connectivity options such as USB Device&Host, LAN, and HDMI ports. The device measures approximately 26.53 cm (Length) x 7.74 cm (Width) x 16.17 cm (Height) and weighs 1.78 kg.
3.4 초기 연결
- Connect the power cable to the oscilloscope's power input and then to a grounded AC power outlet.
- 전면 패널에 있는 전원 버튼을 눌러 장치를 켜세요.
- Connect the passive probes to the analog input channels (CH1, CH2, CH3, CH4) as needed for your measurements. Ensure the probe compensation is correctly adjusted for accurate readings.
- Optionally, connect USB devices, LAN cables, or an HDMI display to the respective ports for extended functionality.
4. 사용 설명서
4.1 기본 작업
Upon powering on, the oscilloscope will display the main measurement interface. The 7-inch touchscreen allows for intuitive navigation and parameter adjustment. Alternatively, use the physical buttons and knobs for precise control.
그림 4.1.1: RIGOL DHO914 Main Features. This image shows the oscilloscope's front panel with key specifications overlaid, including 125 MHz bandwidth, 12-bit resolution, 1.25 GSa/s sampling rate, 50 Mpts storage depth, and available interfaces (USB, LAN, HDMI), all controlled via a 7-inch 1024x600 HD touch display.
4.2 주요 특징 및 기능
- 고해상도: The 12-bit hardware resolution ensures precise signal capture, even for small signals, due to its ultra-low background noise.
- 대역폭 및 채널: Features 125 MHz analog bandwidth across 4 analog channels. An optional 16 digital channels are available for mixed-signal analysis.
- Sampling Rate and Memory: Offers a real-time sampling rate of up to 1.25 GSa/s and a deep memory of 50 Mpts, allowing for detailed capture of long signal sequences.
- 파형 캡처율: The Ultra Aqua mode provides a waveform capture rate of up to 1,000,000 wfm/s, increasing the probability of capturing infrequent events.
- 디스플레이 및 인터페이스: The 7-inch 1024x600 HD touchscreen supports 256-level grayscale real-time brightness, enhancing waveform visualization. The new Flex button provides an intuitive user experience.
- Integrated Analysis Functions: The oscilloscope integrates various analysis tools, including an arbitrary waveform/function generator, birdon trace analysis, histogram, and digital signal analysis.
- 연결성: Standard USB Device&Host, LAN, and HDMI ports facilitate data transfer, remote control, and external display connections.
- 파형 검색 및 탐색: Utilize the built-in search and navigation functions to quickly identify anomalies within captured waveforms.
5. 유지관리
5.1 청소
To clean the instrument, disconnect it from the power source. Use a soft cloth dampened with a mild detergent solution. Do not use abrasive cleaners, solvents, or harsh chemicals, as these may damage the casing or display. Ensure no liquid enters the instrument.
5.2 보관
When not in use for extended periods, store the oscilloscope in a dry, dust-free environment, preferably in its original packaging or a protective case. Avoid extreme temperatures and humidity.
6. 문제 해결
이 섹션에서는 일반적인 문제에 대한 해결 방법을 제공합니다. 여기에 나와 있지 않은 문제는 고객 지원팀에 문의하십시오.
| 문제 | 가능한 원인 | 해결책 |
|---|---|---|
| 기기의 전원이 켜지지 않습니다. | 전원 케이블이 연결되지 않았거나, 전원 콘센트가 고장났거나, 전원 버튼이 눌리지 않았습니다. | Check power cable connection. Verify power outlet functionality. Press the power button firmly. |
| 파형이 표시되지 않습니다. | Probe not connected, signal source off, vertical scale too high/low, trigger settings incorrect. | Ensure probes are connected to the signal source and oscilloscope. Verify signal source is active. Adjust vertical scale (V/div) and horizontal scale (s/div). Check trigger level and mode. |
| 파형이 불안정하거나 잡음이 많습니다. | Poor probe connection, ground loop, external interference, incorrect probe compensation. | Ensure secure probe connections. Use proper grounding techniques. Minimize external electromagnetic interference. Perform probe compensation adjustment. |
| 터치스크린이 응답하지 않습니다. | 일시적인 소프트웨어 오류, 화면이 더럽습니다. | Restart the instrument. Clean the screen with a soft, dry cloth. If the issue persists, use physical controls or contact support. |
7. 사양
The following table outlines the key technical specifications for the RIGOL DHO914 Digital Oscilloscope.
그림 7.1.1: RIGOL DHO914 Technical Data. This image presents a table detailing the oscilloscope's specifications: Bandwidth: 125 MHz, No. Channels: 4A+16D Logic Analyzer, Sample Rate: 1.25G Sa/s, Memory Depth: 50 Mpts, Waveform capture rate: 1,000,000 wfms/s, Vertical Resolution: 12 bit, Min. Vertical Sensitivity: 500uV/div, Min. Timebase: 2 ns/div, Decode Types: RS232/I2C/SPI/CAN/LIN, Built-in Signal Generator: Not supported.
| 매개변수 | 사양 |
|---|---|
| 대역폭 | 125MHz |
| 채널 수 | 4 Analog + 16 Digital (Logic Analyzer) |
| Samp르 레이트 | 1.25 GSa/초 |
| 기억의 깊이 | 50 Mpts |
| 파형 포착률 | 1,000,000 wfms/s (Ultra Aqua mode) |
| 수직 해상도 | 12비트 |
| Min. Vertical Sensitivity | 500 µV/div |
| Min. Timebase | 2 ns/div |
| Decode Types | RS232, I2C, SPI, CAN, LIN |
| 내장 신호 발생기 | 지원되지 않음 |
| 표시하다 | 7-inch (1024x600) HD Touchscreen |
| 연결성 | USB Device&Host, LAN, HDMI |
| 치수(길이 x 너비 x 높이) | 26.53 x 7.74 x 16.17cm(10.5 x 3.0 x 6.4인치) |
| 무게 | 1.78kg(3.9파운드) |
| 전원 | Wired-electric |
8. 보증 및 지원
8.1 보증 정보
The RIGOL DHO914 Digital Oscilloscope comes with a standard 3년 보증 from the date of purchase. This warranty covers defects in materials and workmanship under normal use. Please refer to the included Warranty Card for detailed terms and conditions.
8.2 고객 지원
For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact RIGOL customer support. You can find contact information on the official RIGOL website or through your local distributor. Ensure you have your product model number (DHO914) and serial number ready when contacting support.
9. 일반적인 응용
The RIGOL DHO914 Digital Oscilloscope is suitable for a wide range of applications due to its high performance and versatile features.
그림 9.1.1: RIGOL DHO914 Application Scenarios. This image displays various environments where the oscilloscope can be utilized, such as embedded development, factory production lines, instrument maintenance, educational and research settings, and automotive manufacturing.
- Embedded Development: For debugging and testing embedded systems.
- Factory Production Line: Quality control and signal integrity checks in manufacturing.
- 기기 유지보수: Diagnostics and repair of electronic equipment.
- Education and Research: Ideal for laboratory experiments and academic studies.
- Automotive Manufacturing: Analyzing signals in automotive electronic systems.