ആമുഖം
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. സജ്ജീകരണം
1.1 അൺപാക്കിംഗും പരിശോധനയും
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 ഭൗതിക ബന്ധങ്ങൾ
Before powering on the device, ensure all necessary connections are made.
- പവർ കണക്ഷൻ: 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.
- പ്രോബ് കണക്ഷൻ: Connect the oscilloscope probes to the BNC input connectors on the front panel. Ensure a secure connection.
- USB ഉപകരണം: For connecting to a computer for data transfer or remote control.
- ലാൻ: For network connectivity and remote control via web ഇൻ്റർഫേസ്.
- HDMI: For connecting to an external display for larger viewing.
- USB ഹോസ്റ്റ്: For connecting USB storage devices or other peripherals.
- ഓക്സ് ഔട്ട്: Auxiliary output for specific functions.


1.3 പ്രാരംഭ പവർ-ഓൺ
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. പ്രവർത്തന നിർദ്ദേശങ്ങൾ
2.1 ഫ്രണ്ട് പാനൽ ഓവർview
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 അടിസ്ഥാന പ്രവർത്തനം
- ചാനൽ ഇൻപുട്ടുകൾ: Connect your signals to the BNC input connectors (labeled 1, 2, 3, 4).
- ലംബ നിയന്ത്രണങ്ങൾ: Use the vertical scale (V/div) and position knobs to adjust the vertical display of each channel.
- തിരശ്ചീന നിയന്ത്രണങ്ങൾ: Use the horizontal scale (s/div) and position knobs to adjust the time base.
- ട്രിഗർ നിയന്ത്രണങ്ങൾ: Set the trigger level and mode to stabilize the waveform display. The "Trigger" button allows access to trigger settings.
- ദ്രുത ബട്ടണുകൾ: 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 വിപുലമായ സവിശേഷതകൾ
- 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.
- മെമ്മറി ഡെപ്ത്: Up to 25 Mpts memory depth enables capturing long signal sequences at high sample നിരക്കുകൾ.
- 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 ഇൻ്റർഫേസ്: 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 ഉപകരണ ഇന്റർഫേസ്: Connect to a PC for direct control and data transfer using RIGOL software.
- HDMI ഔട്ട്പുട്ട്: Connect to a projector or large monitor for presentations or collaborative work.

3. പരിപാലനം
3.1 പൊതു പരിചരണം
- ഓസിലോസ്കോപ്പ് വൃത്തിയായും പൊടിയില്ലാതെയും സൂക്ഷിക്കുക. പുറംഭാഗം വൃത്തിയാക്കാൻ മൃദുവായതും ഉണങ്ങിയതുമായ തുണി ഉപയോഗിക്കുക.
- തീവ്രമായ ഊഷ്മാവ്, ഈർപ്പം അല്ലെങ്കിൽ നേരിട്ടുള്ള സൂര്യപ്രകാശം എന്നിവയിലേക്ക് ഉപകരണം എക്സ്പോഷർ ചെയ്യുന്നത് ഒഴിവാക്കുക.
- അമിതമായി ചൂടാക്കുന്നത് തടയാൻ ഉപകരണത്തിന് ചുറ്റും ശരിയായ വായുസഞ്ചാരം ഉറപ്പാക്കുക.
- Do not block the ventilation openings on the rear panel.
3.2 ഡിസ്പ്ലേ വൃത്തിയാക്കുന്നു
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 ഫേംവെയർ അപ്ഡേറ്റുകൾ
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. പ്രശ്നപരിഹാരം
This section provides solutions to common issues you might encounter with your DHO800 series oscilloscope. For more complex problems, please contact RIGOL technical support.
- പവർ ഇല്ല: 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.
- സ്ക്രീൻ പ്രതികരിക്കുന്നില്ല: 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 സ്പെസിഫിക്കേഷനുകൾ
Below are the key technical specifications for the RIGOL DHO800 series digital oscilloscopes.

| ഫീച്ചർ | സ്പെസിഫിക്കേഷൻ |
|---|---|
| ബ്രാൻഡ് നാമം | റിഗോൾ |
| മോഡൽ നമ്പറുകൾ | 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) |
| അനലോഗ് ചാനലുകളുടെ എണ്ണം | 2 + EXT (DHO802/DHO812), 4 (DHO804/DHO814) |
| Sampലിംഗ് മോഡ് | തത്സമയ എസ്ampലിംഗം |
| പരമാവധി എസ്ample 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) |
| റെക്കോർഡ് ദൈർഘ്യം | 25 Mpts (single-channel), 10 Mpts (full-channel for two-channel models), 1 Mpts (full-channel for four-channel models) |
| പരമാവധി തരംഗരൂപ ക്യാപ്ചർ നിരക്ക് | 30,000 wfms/s (Vector Mode), 1,000,000 wfms/s (UltraAcquire Mode) |
| ലംബ മിഴിവ് | 12 ബിറ്റുകൾ |
| പീക്ക് ഡിറ്റക്ഷൻ | 1.6 ns glitches |
| LCD Size and Type | 7" capacitive multi-touch screen |
| ഡിസ്പ്ലേ റെസല്യൂഷൻ | 1024x600 പിക്സലുകൾ |
| DIY സാധനങ്ങൾ | ഇലക്ട്രിക്കൽ |
| സർട്ടിഫിക്കേഷൻ | CE |
| ഉത്ഭവം | മെയിൻലാൻഡ് ചൈന |
6 ഉപയോക്തൃ നുറുങ്ങുകൾ
- Optimize Workspace: Utilize the monitor stand compatibility to free up desk space, especially in crowded lab environments.
- പോർട്ടബിൾ പവർ: For field work or temporary setups, leverage the Type-C power input with a compatible power bank for increased flexibility.
- റിമോട്ട് മോണിറ്ററിംഗ്: അഡ്വാൻ എടുക്കുകtage 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. വാറൻ്റിയും പിന്തുണയും
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 webസൈറ്റ്.





