RIGOL DHO800 Series Digital Oscilloscope Instruction Manual

Introduction

The RIGOL DHO800 series is a high-performance, economical digital oscilloscope designed for a wide range of applications in design, debugging, and testing. This series offers superior performance in a compact design, featuring a capture rate up to 1,000,000 wfms/s (in UltraAcquire Mode), 25 Mpts memory depth, 12-bit resolution, and low noise characteristics. This manual provides essential information for the proper setup, operation, and maintenance of your DHO800 series oscilloscope.

1. Setup

1.1 Unpacking and Inspection

Carefully unpack the oscilloscope and check for any signs of damage during transit. Verify that all accessories listed in the packing list are present. If any items are missing or damaged, contact your supplier.

1.2 Physical Connections

Before powering on the device, ensure all necessary connections are made.

• Power Connection: Connect the provided power adapter to the oscilloscope's power input and a suitable AC power source. The DHO800 series also supports Type-C power input for portable use.
• Probe Connection: Connect the oscilloscope probes to the BNC input connectors on the front panel. Ensure a secure connection.
• USB Device: For connecting to a computer for data transfer or remote control.
• LAN: For network connectivity and remote control via web interface.
• HDMI: For connecting to an external display for larger viewing.
• USB Host: For connecting USB storage devices or other peripherals.
• AUX OUT: Auxiliary output for specific functions.

1.3 Initial Power-On

After making all connections, press the power button to turn on the oscilloscope. The device will perform a self-test. Once the boot sequence is complete, the main waveform display will appear.

1.4 Desktop Placement and Mounting

The DHO800 series features a compact design that can be placed directly on a desktop. It also supports standard monitor stand usage to optimize workspace.

2. Operating Instructions

2.1 Front Panel Overview

The front panel of the DHO800 series oscilloscope features a 7-inch capacitive multi-touch screen and various controls for intuitive operation. Key controls include input channels, vertical and horizontal scale/position knobs, trigger controls, and function buttons.

2.2 Basic Operation

• Channel Inputs: Connect your signals to the BNC input connectors (labeled 1, 2, 3, 4).
• Vertical Controls: Use the vertical scale (V/div) and position knobs to adjust the vertical display of each channel.
• Horizontal Controls: Use the horizontal scale (s/div) and position knobs to adjust the time base.
• Trigger Controls: Set the trigger level and mode to stabilize the waveform display. The "Trigger" button allows access to trigger settings.
• Quick Buttons: Buttons like "Auto", "Run/Stop", "Clear", "Quick" provide fast access to common functions.
• Flex Knob: The brand new Flex Knob offers a user-friendly experience for navigation and adjustments.

2.3 Advanced Features

• 12-bit Vertical Resolution: Provides up to 4096 quantized levels, significantly improving the accuracy for small signal testing compared to standard 8-bit oscilloscopes.



• UltraAcquire Mode: Achieves a maximum capture rate of 1,000,000 wfms/s, allowing for the detection of infrequent events and signal anomalies.
• Memory Depth: Up to 25 Mpts memory depth enables capturing long signal sequences at high sample rates.
• Digital Phosphor Display: Features real-time 256-level intensity grading, providing a visual representation of signal frequency and history.
• Waveform Search and Navigation: Facilitates faster debugging by allowing users to search for specific waveform characteristics and navigate through captured data.

2.4 Remote Control and Connectivity

The DHO800 series supports various interfaces for remote control and data sharing:

• LAN Interface: Connect the oscilloscope to a network for remote access via a web browser. This allows for controlling the device and viewing waveforms from a computer.
• USB Device Interface: Connect to a PC for direct control and data transfer using RIGOL software.
• HDMI Output: Connect to a projector or large monitor for presentations or collaborative work.

3. Maintenance

3.1 General Care

• Keep the oscilloscope clean and free from dust. Use a soft, dry cloth for cleaning the exterior.
• Avoid exposing the device to extreme temperatures, humidity, or direct sunlight.
• Ensure proper ventilation around the device to prevent overheating.
• Do not block the ventilation openings on the rear panel.

3.2 Cleaning the Display

For cleaning the capacitive multi-touch screen, use a soft, lint-free cloth slightly dampened with a mild, non-abrasive cleaner. Avoid spraying cleaners directly onto the screen.

3.3 Firmware Updates

The DHO800 series supports unique online firmware upgrades. Refer to the official RIGOL website for the latest firmware versions and instructions on how to perform an update.

4. Troubleshooting

This section provides solutions to common issues you might encounter with your DHO800 series oscilloscope. For more complex problems, please contact RIGOL technical support.

• No Power: Ensure the power adapter is securely connected to both the oscilloscope and a working power outlet. Check the power button.
• No Waveform Display: Verify that probes are correctly connected to the input channels and the signal source. Check trigger settings (e.g., trigger level, mode). Use the "Auto" button for automatic setup.
• Unstable Waveform: Adjust the trigger level and trigger mode. Ensure the input signal is within the oscilloscope's measurement range.
• Screen Unresponsive: If the touch screen is unresponsive, try restarting the device. If the issue persists, contact support.
• Connectivity Issues (LAN/USB): Check cable connections. Ensure network settings are correct for LAN. For USB, verify drivers are installed on the connected computer.

5. Specifications

Below are the key technical specifications for the RIGOL DHO800 series digital oscilloscopes.

6. User Tips

• Optimize Workspace: Utilize the monitor stand compatibility to free up desk space, especially in crowded lab environments.
• Portable Power: For field work or temporary setups, leverage the Type-C power input with a compatible power bank for increased flexibility.
• Remote Monitoring: Take advantage of the LAN and HDMI interfaces for remote monitoring and collaborative viewing of waveforms, which can be very useful in educational or team settings.
• Small Signal Analysis: The 12-bit resolution is a significant advantage for analyzing subtle details in signals. Ensure proper probe compensation and grounding to fully benefit from this feature.

7. Warranty and Support

RIGOL provides comprehensive support for its products. For warranty information, technical assistance, or service requests, please refer to the official RIGOL website or contact your local RIGOL distributor. Ensure you have your product model and serial number available when seeking support.

For the latest documentation, software, and firmware updates, visit the official RIGOL website.