Manual d'instruccions de l'oscil·loscopi digital Rigol DHO812

1. Introducció

The Rigol DHO812 is a high-performance, economical digital oscilloscope designed for precise signal analysis. This manual provides essential information for setting up, operating, and maintaining your DHO812 oscilloscope, ensuring optimal performance and longevity.

The DHO800 series, including the DHO812, offers superior performance with a capture rate up to 1,000,000 wfms/s (in UltraAcquire Mode), 25 Mpts memory depth, 12 bits resolution, and low noise, all within a compact design.

2. Característiques clau

• Canals: 2 canals analògics
• Ample de banda: 100 MHz
• Resolució: 12 bits
• Visualització: 7-inch (1024 x 600) capacitive multi-touch screen
• Disseny compacte: Dimensions of approximately 10.5"W x 6.4"H x 3.1"D
• Muntatge: VESA mounting pattern on rear (100x100)

3. Què hi ha a la caixa

En desembalar, comproveu que hi hagi tots els components:

• Rigol DHO812 Digital Oscilloscope Unit
• 100MHz Probes (quantity not specified, but implied by 2 channels)
• Cable d'alimentació
• USB Cable (for remote control, if applicable)
• Quick Guide or Documentation

Note: The product description explicitly states "100MHz, 1.25GSa/s, 2 channels" as "whats_in_the_box". This is unusual for a "whats in the box" list, as it describes features rather than physical items. I will interpret it as implying the probes and the unit itself, and add common accessories.

4. Producte acabatview

Familiarize yourself with the front panel and connections of the Rigol DHO812 oscilloscope.

Figure 4.1: Front Panel of the Rigol DHO812 Digital Oscilloscope. The image displays the 7-inch multi-touch screen on the left, showing waveform data and measurement results. To the right of the screen are various control buttons and rotary knobs for navigation, vertical and horizontal scaling, triggering, and measurement functions. Below the screen, there are two BNC input connectors for Channel 1 and Channel 2 signal inputs, and a USB host port.

4.1 Controls del panell frontal

• Pantalla de visualització: 7-inch capacitive multi-touch screen for waveform display and menu interaction.
• Controls verticals: Knobs and buttons for adjusting vertical scale (Volts/Div) and position for each channel.
• Controls horitzontals: Knobs and buttons for adjusting horizontal time base (Sec/Div) and position.
• Controls de disparador: Buttons and knobs for setting trigger level, mode, and slope.
• Measurement Buttons: Dedicated buttons for quick access to measurement, cursor, and analysis functions.
• Connectors d'entrada: BNC connectors for Channel 1 and Channel 2 signal inputs.
• Port d'amfitrió USB: Per connectar dispositius d'emmagatzematge USB o altres perifèrics.

5. Configuració

5.1 Engegada inicial

1. Connect the provided power cord to the oscilloscope's power input and then to a suitable AC power outlet.
2. Press the power button located on the front panel to turn on the instrument.
3. Allow the oscilloscope to complete its boot-up sequence.

5.2 Connexió i compensació de la sonda

1. Connect the oscilloscope probe to one of the BNC input connectors (e.g., Channel 1).
2. Attach the probe's ground clip to the ground terminal on the oscilloscope or a known ground point.
3. Connect the probe tip to the probe compensation output (usually a square wave test point on the front panel).
4. Adjust the compensation screw on the probe until the square wave displayed on the screen is flat-topped, without overshoot or undershoot.

6. Instruccions de funcionament

6.1 Touch Screen Gestures

The DHO812 features a large capacitive touch screen that simplifies operation and configuration. The following gestures are supported:

• Toca: Use one finger to tap symbols or characters on the screen to select items, navigate menus, or confirm actions.
• Arrossega: Use one finger to select an object (e.g., a waveform, cursor, or menu item) and drag it to a new location on the screen.
• Pinch and Stretch: Use two fingers to pinch or stretch on the screen to zoom in or out.
  • Pinching and stretching horizontally adjusts the horizontal time base of the waveform.
  • Pinching and stretching vertically adjusts the vertical scale of the waveform.

6.2 Basic Waveform Acquisition

1. Connect the signal source to the desired input channel (e.g., Channel 1).
2. Premeu el botó AUTO button on the front panel for automatic setup of vertical and horizontal scales, and trigger settings.
3. Alternatively, manually adjust the Escala Vertical (Volts/Div) and Escala horitzontal (Sec/Div) knobs to display the waveform appropriately.
4. Ajusteu el Nivell de disparador knob to stabilize the waveform display.

6.3 Control remot

The DHO800 series supports various methods for remote control and automation:

• User-defined Programming: Control the instrument using SCPI (Standard Commands for Programmable Instruments) commands. Refer to the detailed programming manual for a complete list of commands.
• Programari de PC: Utilize PC software to send commands and control the instrument remotely. RIGOL Ultra Sigma is recommended for this purpose.

7. Manteniment

7.1 Neteja

• Desconnecteu sempre el cable d'alimentació abans de netejar.
• Utilitzeu un suau, damp cloth with mild detergent to clean the exterior of the instrument.
• Do not use abrasive cleaners or solvents that may damage the plastic parts or screen.
• For the display, use a screen-specific cleaner and a microfiber cloth.

7.2 Emmagatzematge

• Store the oscilloscope in a clean, dry environment, away from direct sunlight and extreme temperatures.
• Protegiu la pantalla de ratllades i impactes.

7.3 Calibració

For optimal accuracy, periodic calibration by qualified personnel is recommended. Refer to Rigol's official support channels for calibration services.

8. Solució De Problemes

This section provides solutions to common issues you might encounter. For more complex problems, contact Rigol technical support.

9. Especificacions

The following are key specifications for the Rigol DHO812 Digital Oscilloscope:

• Model: DHO812
• Canals: 2
• Ample de banda: 100 MHz
• Resolució: 12 bits
• Visualització: 7" (1024 x 600) capacitive multi-touch screen
• Profunditat de memòria: 25 Mpts
• Waveform Capture Rate: Up to 1,000,000 wfms/s (UltraAcquire Mode)
• Dimensions del producte: 13.5 x 9.76 x 5.62 polzades
• Pes: 6.4 lliures
• Muntatge VESA: 100x100 pattern on rear

10. Garantia i Suport

Rigol provides comprehensive warranty and technical support for its products. For detailed warranty information, service requests, or technical assistance, please refer to the official Rigol weblloc web o poseu-vos en contacte amb els seus centres de servei autoritzats.

Rigol Official Weblloc: www.rigolna.com (Example link, user should verify official site)

It is recommended to register your product on the Rigol weblloc web per rebre actualitzacions i notificacions de suport.