Manual d'instruccions de l'oscil·loscopi digital RIGOL sèrie DHO800

Introducció

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. Configuració

1.1 Desembalatge i inspecció

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 Connexions físiques

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

Connexió d'alimentació: 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.
Connexió de la sonda: Connect the oscilloscope probes to the BNC input connectors on the front panel. Ensure a secure connection.
Dispositiu USB: For connecting to a computer for data transfer or remote control.
LAN: For network connectivity and remote control via web interfície.
HDMI: For connecting to an external display for larger viewing.
Host USB: For connecting USB storage devices or other peripherals.
SORTIDA AUX: Auxiliary output for specific functions.

Rear panel of RIGOL DHO800 series oscilloscope showing LAN, USB, HDMI, USB-C, and AUX OUT ports. — Figure 1: Rear Panel Connections (LAN, USB, HDMI, USB-C, AUX OUT)

RIGOL DHO800 series oscilloscope powered via USB-C from a portable power bank. — Figure 2: Oscilloscope powered via Type-C from a portable power source.

1.3 Engegada inicial

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.

RIGOL DHO800 series oscilloscope mounted on a monitor arm, demonstrating space-saving design. — Figure 3: Oscilloscope mounted on a monitor stand.

2. Instruccions de funcionament

2.1 Tauler frontal sobreview

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.

Davant view of RIGOL DHO814 digital oscilloscope showing the display, input channels, and control panel. — Figure 4: Front Panel of DHO800 Series Oscilloscope

2.2 Funcionament bàsic

Entrades de canal: Connect your signals to the BNC input connectors (labeled 1, 2, 3, 4).
Controls verticals: Use the vertical scale (V/div) and position knobs to adjust the vertical display of each channel.
Controls horitzontals: Use the horizontal scale (s/div) and position knobs to adjust the time base.
Controls de disparador: Set the trigger level and mode to stabilize the waveform display. The "Trigger" button allows access to trigger settings.
Botons ràpids: 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.

Video 1: Demonstration of Oscilloscope Controls and Interface

2.3 Funcions avançades

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

Comparison of 8-bit and 12-bit vertical resolution, showing 16x quantized accuracy with 12-bit. — Figure 5: 12-bit Vertical Resolution for enhanced signal detail.

UltraAcquire Mode: Achieves a maximum capture rate of 1,000,000 wfms/s, allowing for the detection of infrequent events and signal anomalies.
Profunditat de memòria: Up to 25 Mpts memory depth enables capturing long signal sequences at high samples tarifes.
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:

Interfície LAN: 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.
Interfície de dispositiu USB: Connect to a PC for direct control and data transfer using RIGOL software.
Sortida HDMI: Connect to a projector or large monitor for presentations or collaborative work.

Diagram showing RIGOL DHO800 series oscilloscope connected to a laptop via LAN/USB/HDMI for remote control and display. — Figure 6: Remote Control and Connectivity Options

3. Manteniment

3.1 Atenció general

Keep the oscilloscope clean and free from dust. Use a soft, dry cloth for cleaning the exterior.
Eviteu exposar el dispositiu a temperatures extremes, humitat o llum solar directa.
Assegureu-vos una ventilació adequada al voltant del dispositiu per evitar el sobreescalfament.
Do not block the ventilation openings on the rear panel.

3.2 Neteja de la pantalla

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 actualitzacions de microprogramari

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. Solució De Problemes

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

Sense poder: 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.
La pantalla no respon: 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. Especificacions

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

Table showing technical specifications for RIGOL DHO802, DHO804, DHO812, and DHO814 models. — Figura 7: Mésview of DHO800 Series Technical Specifications

RIGOL DHO800 Series Key Specifications
Característica	Especificació
Nom de marca	RIGOL
Números de model	DHO802/DHO804/DHO812/DHO814
Analog Bandwidth (-3 dB)	70 MHz (DHO802/DHO804), 100 MHz (DHO812/DHO814)
Rise Time (10% to 90%, typical)	≤5 ns (70 MHz models), ≤3.5 ns (100 MHz models)
Nombre de canals analògics	2 + EXT (DHO802/DHO812), 4 (DHO804/DHO814)
SampMode ling	S en temps realampling
Màx. Sample Rate of Analog Channel	1.25 GSa/s (single-channel), 625 MSa/s (full-channel for two-channel models), 312.5 MSa/s (full-channel for four-channel models)
Durada del registre	25 Mpts (single-channel), 10 Mpts (full-channel for two-channel models), 1 Mpts (full-channel for four-channel models)
Max Waveform Capture Rate	30,000 wfms/s (Vector Mode), 1,000,000 wfms/s (UltraAcquire Mode)
Resolució vertical	12 bits
Detecció de pics	1.6 ns glitches
LCD Size and Type	7" capacitive multi-touch screen
Resolució de visualització	1024 x 600 píxels
Subministraments de bricolatge	Elèctric
Certificació	CE
Origen	Xina continental

6. Consells d'usuari

Optimize Workspace: Utilize the monitor stand compatibility to free up desk space, especially in crowded lab environments.
Potència portàtil: For field work or temporary setups, leverage the Type-C power input with a compatible power bank for increased flexibility.
Monitorització remota: Avançanttage 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. Garantia i Suport

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 weblloc.

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RIGOL DHO800 Series