คู่มือการใช้งานออสซิลโลสโคปดิจิทัล RIGOL DHO814

1. บทนำ

This manual provides detailed instructions for the safe and efficient operation of your RIGOL DHO814 Digital Oscilloscope. The DHO814 is a high-performance, ultra-portable 100 MHz, 4-channel digital oscilloscope featuring a 12-bit resolution, 1.25 GSa/s sample rate, and a 7-inch HD touchscreen. It is designed for various applications including on-site testing, circuit debugging, embedded system development, and laboratory education.

The RIGOL DHO814 Digital Oscilloscope in operation, showcasing its ability to display complex waveforms with high clarity on its 7-inch HD screen.

2. ข้อมูลด้านความปลอดภัย

To ensure safe operation and prevent damage to the instrument, please observe the following safety precautions:

• Always operate the oscilloscope within its specified voltage และขีดจำกัดปัจจุบัน
• อย่าเปิดอุปกรณ์casinก. ส่งต่อการบริการทั้งหมดให้กับบุคลากรที่มีคุณสมบัติเหมาะสม
• ตรวจสอบให้แน่ใจว่ามีการต่อสายดินอย่างเหมาะสมเพื่อป้องกันไฟฟ้าช็อต
• Avoid exposing the device to moisture, rain, or extreme temperatures.
• Use only the power adapter and accessories supplied or approved by RIGOL.
• Disconnect power before cleaning the instrument. Use a soft, dry cloth.

3. การตั้งค่า

3.1 เนื้อหาบรรจุภัณฑ์

Before beginning, verify that all items are present in the package:

• 1 x RIGOL DHO814 Main Unit
• 1 x อะแดปเตอร์แปลงไฟสำหรับใช้งานในสหภาพยุโรป
• 1 x USB A-B Cable
• 1 x Ground Wire
• 4 x Passive Probes (150 MHz)
• ใบรับประกัน 1 ใบ
• 1 x ใบรับรองการสอบเทียบ
• 1 x คำประกาศความสอดคล้อง

ครอบคลุม view of the items included in the RIGOL DHO814 box, ensuring users can verify all components upon unboxing. This includes the oscilloscope, probes, power supply, and essential cables.

3.2 การเปิดเครื่อง

1. Connect the supplied power adapter to the oscilloscope's power input port.
2. เสียบอะแดปเตอร์ไฟฟ้าเข้ากับเต้ารับไฟฟ้า AC ที่เหมาะสม
3. Alternatively, the DHO814 supports power via a USB Type-C power bank for portable operation. Connect a compatible power bank to the USB-C port.
4. กดปุ่มเปิดปิดที่แผงด้านหน้าเพื่อเปิดอุปกรณ์

3.3 การเชื่อมต่อโพรบ

Connect the passive probes to the BNC input channels (1, 2, 3, 4) on the front panel. Ensure the probe's ground clip is securely connected to the circuit's ground reference.

This image displays the front panel of the DHO814 oscilloscope, highlighting its large touchscreen interface, dedicated control knobs for vertical and horizontal adjustments, and the four BNC input channels.

The rear panel of the DHO814 features various connectivity options such as LAN for network integration, USB ports for data transfer, an HDMI output for external display, and a USB-C port for power input, supporting power bank operation.

4. การใช้งานออสซิลโลสโคป

4.1 การควบคุมพื้นฐานและอินเทอร์เฟซ

The DHO814 features a 7-inch HD touchscreen for intuitive navigation and control. Physical knobs and buttons are also provided for quick adjustments of vertical scale, horizontal time base, trigger level, and other common functions.

4.2 Waveform Acquisition

To acquire a waveform:

1. Connect your signal source to an input channel using a probe.
2. Adjust the vertical scale (Volts/Div) and horizontal time base (Sec/Div) using the dedicated knobs or touchscreen controls to display the waveform appropriately.
3. Set the trigger mode and level to stabilize the waveform. Use the 'Auto' button for automatic trigger setup or manually adjust the trigger level.
4. The 12-bit vertical resolution provides 16 times more detail than traditional 8-bit oscilloscopes, allowing for precise capture of subtle signal variations.

This visual illustrates the superior detail provided by the DHO814's 12-bit vertical resolution compared to standard 8-bit oscilloscopes, allowing for more precise capture of subtle signal variations.

4.3 ฟังก์ชันการวัด

The DHO814 integrates several measurement tools:

• การวัดอัตโนมัติ: Access a wide range of automatic measurements for parameters like frequency, period, peak-to-peak voltagอี, อาร์เอ็มเอส ฯลฯ
• Digital Multimeter (DMM): A built-in 3-digit DMM for basic voltage และการวัดกระแส
• ตัวนับความถี่: Provides accurate frequency readings.
• การวิเคราะห์ FFT: Perform Fast Fourier Transform (FFT) to analyze the frequency components of your signals.

4.4 Protocol Decoding

The oscilloscope supports decoding of various serial protocols, including RS232/UART, I2C, SPI, and CAN. This feature is particularly useful for debugging embedded systems and automotive applications.

4.5 Connectivity and Remote Control

The DHO814 is equipped with USB, LAN, and HDMI ports. It runs on an Android operating system, enabling remote control via a PC. It supports customized development through SCPI commands and is compatible with LabVIEW, Visual Basic, and Visual C++.

5. การบำรุงรักษา

Proper maintenance ensures the longevity and accuracy of your oscilloscope:

• การทำความสะอาด: Keep the device clean and free from dust. Use a soft, dry cloth for cleaning the exterior. Do not use abrasive cleaners, solvents, or harsh chemicals.
• พื้นที่จัดเก็บ: Store the oscilloscope in a cool, dry environment, away from direct sunlight and extreme temperatures.
• การดูแลโพรบ: Handle probes carefully. Avoid bending or stressing the cables. Replace damaged probes immediately.

6 การแก้ไขปัญหา

If you encounter issues with your DHO814, refer to the following common troubleshooting steps:

• อุปกรณ์ไม่เปิดใช้งาน: Ensure the power adapter is correctly connected to both the oscilloscope and a functional power outlet. If using a power bank, verify it is charged and compatible.
• ไม่มีการแสดงรูปคลื่น: Check that probes are securely connected to the input channels and the signal source. Verify the vertical scale and horizontal time base settings are appropriate for the input signal. Adjust the trigger level or use the 'Auto' trigger function.
• รูปคลื่นไม่เสถียร: Adjust the trigger source, mode, and level. Ensure the trigger point is stable.
• การวัดที่ไม่ถูกต้อง: Verify probe attenuation settings match the physical probe (e.g., 1X, 10X). Ensure the measurement parameters are correctly selected.

For further assistance, please contact RIGOL technical support.

7. ข้อมูลจำเพาะ

Key technical specifications for the RIGOL DHO814 Digital Oscilloscope:

An illustration detailing the compact dimensions (26.53 x 7.74 x 16.17 cm) and light weight (1.78 kg) of the DHO814, emphasizing its suitability for portable applications.

8. การรับประกันและการสนับสนุน

The RIGOL DHO814 Digital Oscilloscope comes with a รับประกัน 3 ปี, ensuring peace of mind for your investment. RIGOL also provides การสนับสนุนด้านเทคนิคตลอด 24 ชั่วโมงทุกวัน to assist you with any questions or issues you may encounter during the use of your instrument.

For warranty claims or technical assistance, please contact RIGOL EU or refer to the contact information provided with your product documentation.