RIGOL DG822 Pro Function Generator User Manual

1. Introduction

This manual provides essential information for the safe and efficient operation of your RIGOL DG822 Pro Function Generator. Please read this manual thoroughly before using the device to ensure proper functionality and to prevent damage.

The RIGOL DG822 Pro is a versatile 2-channel function/arbitrary waveform generator offering a maximum output frequency of 25 MHz, 16-bit vertical resolution, and a sampling rate of up to 625 MSa/s. It features a 7-inch HD touchscreen and a compact, portable design, making it suitable for various applications including field testing, laboratory education, and research and development.

2. Safety Information

Always observe the following safety precautions to avoid personal injury and prevent damage to the instrument or other connected products.

• Power Source: Use only the power adapter supplied with the instrument. Ensure the power voltage matches the instrument's requirements.
• Grounding: Ensure the instrument is properly grounded to prevent electric shock.
• Environment: Operate the instrument in a well-ventilated area, away from moisture, dust, and direct sunlight. Avoid extreme temperatures.
• Ventilation: Do not block the ventilation openings. Overheating can cause damage.
• Cleaning: Disconnect power before cleaning. Use a soft, dry cloth. Do not use liquid or spray cleaners.
• Servicing: Do not attempt to service the instrument yourself. Refer all servicing to qualified service personnel.

3. Product Overview

The RIGOL DG822 Pro combines multiple functions into a single device, including a function generator, arbitrary waveform generator, noise generator, pulse generator, harmonic generator, analog/digital modulator, and frequency counter.

3.1 Key Features

• Output Frequency: Up to 25 MHz.
• Channels: 2 independent output channels.
• Resolution: 16-bit vertical resolution.
• Sampling Rate: Up to 625 MSa/s.
• Display: 7-inch HD touchscreen for intuitive operation.
• Portability: Compact design (266 mm × 165 mm × 80 mm, 1.78 kg) with Type-C power input for mobile use.
• Modulations: Supports AM, FM, PM, ASK, FSK, PSK, PWM, and SUM.
• Connectivity: USB, LAN, and HDMI interfaces for remote control and data transfer.
• Rise Time: Fast rise time of 3 ns.

3.2 Front Panel Overview

The front panel features the main 7-inch HD touchscreen display, a rotary knob for parameter adjustment, various function keys for waveform selection (Sine, Square, Pulse, Ramp, Arb, Noise), modulation controls, and two BNC output connectors for Channel 1 and Channel 2.

3.3 Rear Panel Overview

The rear panel provides connectivity options including USB (Host and Device), LAN (Ethernet), HDMI output, 10 MHz REF IN/OUT, CH1 AUX IN/OUT, CH2 AUX IN/OUT, and the Type-C power input. It also includes threaded holes for rack mounting (VESA100) and a ground terminal.

4. Setup

4.1 Unpacking and Inspection

Upon receiving your DG822 Pro, carefully inspect the packaging for any signs of damage. Open the box and verify that all components listed below are present and in good condition.

Included Components:

• Main Unit (RIGOL DG822 Pro)
• Power Cable
• USB Cable
• BNC-BNC Cable
• Product Warranty Card
• Calibration Certificate

4.2 Power Connection

1. Connect the supplied power cable to the Type-C power input port on the rear panel of the DG822 Pro.
2. Plug the other end of the power cable into a suitable AC power outlet.
3. Alternatively, the device can be powered via a compatible power bank using the Type-C port for portable operation.

4.3 Initial Power On

1. Press the power button located on the front panel to turn on the instrument.
2. The RIGOL logo will appear on the screen, followed by the main operating interface.

5. Operating Instructions

5.1 Basic Waveform Generation

1. Select Channel: Use the CH1 or CH2 buttons on the front panel to select the desired output channel.
2. Select Waveform: Press the corresponding waveform button (e.g., Sine, Square, Pulse, Ramp, Arb, Noise) to choose the desired waveform type.
3. Adjust Parameters: Use the touchscreen or the rotary knob to adjust parameters such as frequency, amplitude, offset, and phase. Tap on the parameter field on the screen to activate it, then use the knob or numeric keypad to change the value.
4. Enable Output: Press the On/Off button for the selected channel to enable the waveform output.

5.2 Modulation Functions

The DG822 Pro supports various analog and digital modulation types.

1. Access Modulation Menu: Press the Mod button on the front panel.
2. Select Modulation Type: Choose from AM, FM, PM, ASK, FSK, PSK, PWM, or SUM on the touchscreen.
3. Configure Parameters: Adjust the modulation parameters such as depth, frequency, and source (internal/external) as required for your application.
4. Enable Modulation: Activate the modulation function from the menu.

5.3 Remote Control and Connectivity

The DG822 Pro can be controlled remotely via USB, LAN, or HDMI interfaces.

• USB Connection: Connect the instrument to a PC using the supplied USB cable. Install the necessary drivers and software (e.g., UltraWave) for PC control.
• LAN Connection: Connect the instrument to a network using an Ethernet cable. Configure network settings on the device and your PC to enable remote control via SCPI commands or compatible software (e.g., LabVIEW, Visual Basic, Visual C++).
• HDMI Output: Use the HDMI port to connect an external display for a larger view of the instrument's interface.

6. Maintenance

6.1 Cleaning the Instrument

• Always disconnect the power cord before cleaning.
• Use a soft, dry cloth to clean the exterior surfaces of the instrument.
• For the touchscreen, use a soft, lint-free cloth specifically designed for electronic displays. Do not use abrasive cleaners or solvents.
• Ensure no liquids enter the instrument.

6.2 Firmware Updates

Periodically check the RIGOL official website for firmware updates. Firmware updates can improve performance, add new features, or fix bugs. Follow the instructions provided with the firmware update package carefully.

6.3 Storage

When not in use for extended periods, store the instrument in a dry, dust-free environment, away from direct sunlight and extreme temperatures. Use the original packaging or a protective case if available.

7. Troubleshooting

This section provides solutions to common issues you might encounter. If the problem persists, contact RIGOL technical support.

8. Specifications

Below are the key technical specifications for the RIGOL DG822 Pro Function Generator.

9. Warranty and Support

RIGOL provides comprehensive support for the DG822 Pro Function Generator.

• Warranty: The product comes with a 3-year warranty from the date of purchase. Please refer to the included warranty card for detailed terms and conditions.
• Technical Support: RIGOL offers 24/7 technical support. For assistance, please visit the official RIGOL website or contact their customer service department.
• Online Resources: Additional resources, including FAQs, software downloads, and updated manuals, may be available on the RIGOL website.