1. はじめに
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. 安全情報
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.
- 電源: Use only the power cable supplied with the instrument and ensure it is connected to a grounded power outlet.
- 換気： Ensure proper ventilation. Do not block the ventilation openings.
- 環境： Operate the instrument in a dry environment, away from moisture, dust, and direct sunlight.
- プローブ： 容量定格のプローブのみを使用してくださいtage and current being measured. Ensure probes are properly connected before making measurements.
- クリーニング： 清掃する前に電源を切ってください。柔らかくてamp 布で拭いてください。研磨剤入りの洗剤や溶剤は使用しないでください。
- サービス: 機器の修理はご自身で行わないでください。修理はすべて資格を持ったサービス担当者にご依頼ください。
3. セットアップ
3.1 開梱と検査
Carefully unpack the oscilloscope and check for any signs of damage during transit. Retain the packaging materials for future transport or storage.
3.2 箱の中身
図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)
- アース線
- Passive Probes (4 units, 150MHz)
- Warranty Card & Calibration Certificate
3.3 製品終了view
図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 スリムなプロを披露file, 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 初期接続
- Connect the power cable to the oscilloscope's power input and then to a grounded AC power outlet.
- 前面パネルにある電源ボタンを押して、デバイスの電源を入れます。
- 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. 操作手順
4.1 基本操作
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.
図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 主な特徴と機能
- 高解像度: The 12-bit hardware resolution ensures precise signal capture, even for small signals, due to its ultra-low background noise.
- 帯域幅とチャネル: Features 125 MHz analog bandwidth across 4 analog channels. An optional 16 digital channels are available for mixed-signal analysis.
- Sampling Rate and Memory: リアルタイムのsを提供ampling rate of up to 1.25 GSa/s and a deep memory of 50 Mpts, allowing for detailed capture of long signal sequences.
- 波形キャプチャレート: The Ultra Aqua mode provides a waveform capture rate of up to 1,000,000 wfm/s, increasing the probability of capturing infrequent events.
- ディスプレイとインターフェース: 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.
- 接続性: Standard USB Device&Host, LAN, and HDMI ports facilitate data transfer, remote control, and external display connections.
- 波形の検索とナビゲーション: Utilize the built-in search and navigation functions to quickly identify anomalies within captured waveforms.
5. メンテナンス
5.1 クリーニング
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 ストレージ
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。 トラブルシューティング
このセクションでは、よくある問題の解決策をご紹介します。ここに記載されていない問題については、カスタマーサポートにお問い合わせください。
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| 機器の電源が入りません。 | Power cable not connected, power outlet faulty, power button not pressed. | Check power cable connection. Verify power outlet functionality. Press the power button firmly. |
| 波形が表示されません。 | 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. |
| 波形が不安定またはノイズが多い。 | 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. |
| タッチスクリーンが反応しない。 | 一時的なソフトウェアの不具合、画面が汚れています。 | Restart the instrument. Clean the screen with a soft, dry cloth. If the issue persists, use physical controls or contact support. |
7. 仕様
The following table outlines the key technical specifications for the RIGOL DHO914 Digital Oscilloscope.
図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.
| パラメータ | 仕様 |
|---|---|
| 帯域幅 | 125 MHz |
| チャンネル数 | 4 Analog + 16 Digital (Logic Analyzer) |
| Sampルレート | 1.25GSa/秒 |
| メモリ深度 | 50 Mpts |
| 波形キャプチャレート | 1,000,000 wfms/s (Ultra Aqua mode) |
| 分解能 | 12ビット |
| Min. Vertical Sensitivity | 500 µV/div |
| Min. Timebase | 2 ns/div |
| Decode Types | RS232, I2C, SPI, CAN, LIN |
| 内蔵信号発生器 | サポートされていません |
| 画面 | 7-inch (1024x600) HD Touchscreen |
| 接続性 | USB Device&Host, LAN, HDMI |
| 寸法（長さ×幅×高さ） | 26.53 x 7.74 x 16.17 cm（10.5 x 3.0 x 6.4インチ） |
| 重さ | 1.78 kg (3.9 ポンド) |
| 電源 | Wired-electric |
8. 保証とサポート
8.1 保証情報
The RIGOL DHO914 Digital Oscilloscope comes with a standard 3年間保証 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 カスタマーサポート
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。 代表的なアプリケーション
The RIGOL DHO914 Digital Oscilloscope is suitable for a wide range of applications due to its high performance and versatile features.
図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.
- 機器のメンテナンス: Diagnostics and repair of electronic equipment.
- Education and Research: Ideal for laboratory experiments and academic studies.
- Automotive Manufacturing: Analyzing signals in automotive electronic systems.