1. ആമുഖം
This manual provides detailed instructions for the safe and efficient operation of your RIGOL DHO814 Digital Oscilloscope. The DHO814 is a high-performance, ultra-portable 100 MHz, 4-channel digital oscilloscope featuring a 12-bit resolution, 1.25 GSa/s sample rate, and a 7-inch HD touchscreen. It is designed for various applications including on-site testing, circuit debugging, embedded system development, and laboratory education.

The RIGOL DHO814 Digital Oscilloscope in operation, showcasing its ability to display complex waveforms with high clarity on its 7-inch HD screen.
2 സുരക്ഷാ വിവരങ്ങൾ
To ensure safe operation and prevent damage to the instrument, please observe the following safety precautions:
- Always operate the oscilloscope within its specified voltagഇ, നിലവിലെ പരിധികൾ.
- ഉപകരണം തുറക്കരുത് casing. എല്ലാ സേവനങ്ങളും യോഗ്യതയുള്ള ഉദ്യോഗസ്ഥർക്ക് റഫർ ചെയ്യുക.
- വൈദ്യുതാഘാതം തടയാൻ ശരിയായ ഗ്രൗണ്ടിംഗ് ഉറപ്പാക്കുക.
- Avoid exposing the device to moisture, rain, or extreme temperatures.
- Use only the power adapter and accessories supplied or approved by RIGOL.
- Disconnect power before cleaning the instrument. Use a soft, dry cloth.
3. സജ്ജീകരണം
3.1 പാക്കേജ് ഉള്ളടക്കം
Before beginning, verify that all items are present in the package:
- 1 x RIGOL DHO814 Main Unit
- 1 x EU Power Adapter
- 1 x USB A-B Cable
- 1 x Ground Wire
- 4 x Passive Probes (150 MHz)
- 1 x വാറൻ്റി കാർഡ്
- 1 x കാലിബ്രേഷൻ സർട്ടിഫിക്കറ്റ്
- 1 x അനുരൂപതയുടെ പ്രഖ്യാപനം

ഒരു സമഗ്രമായ view of the items included in the RIGOL DHO814 box, ensuring users can verify all components upon unboxing. This includes the oscilloscope, probes, power supply, and essential cables.
3.2 പവർ ചെയ്യുന്നു
- Connect the supplied power adapter to the oscilloscope's power input port.
- പവർ അഡാപ്റ്റർ അനുയോജ്യമായ ഒരു എസി പവർ ഔട്ട്ലെറ്റിലേക്ക് പ്ലഗ് ചെയ്യുക.
- Alternatively, the DHO814 supports power via a USB Type-C power bank for portable operation. Connect a compatible power bank to the USB-C port.
- ഉപകരണം ഓണാക്കാൻ മുൻ പാനലിൽ സ്ഥിതിചെയ്യുന്ന പവർ ബട്ടൺ അമർത്തുക.
3.3 കണക്ടിംഗ് പ്രോബുകൾ
Connect the passive probes to the BNC input channels (1, 2, 3, 4) on the front panel. Ensure the probe's ground clip is securely connected to the circuit's ground reference.

This image displays the front panel of the DHO814 oscilloscope, highlighting its large touchscreen interface, dedicated control knobs for vertical and horizontal adjustments, and the four BNC input channels.

The rear panel of the DHO814 features various connectivity options such as LAN for network integration, USB ports for data transfer, an HDMI output for external display, and a USB-C port for power input, supporting power bank operation.
4. ഓസിലോസ്കോപ്പ് പ്രവർത്തിപ്പിക്കൽ
4.1 Basic Controls and Interface
The DHO814 features a 7-inch HD touchscreen for intuitive navigation and control. Physical knobs and buttons are also provided for quick adjustments of vertical scale, horizontal time base, trigger level, and other common functions.
4.2 Waveform Acquisition
To acquire a waveform:
- Connect your signal source to an input channel using a probe.
- Adjust the vertical scale (Volts/Div) and horizontal time base (Sec/Div) using the dedicated knobs or touchscreen controls to display the waveform appropriately.
- Set the trigger mode and level to stabilize the waveform. Use the 'Auto' button for automatic trigger setup or manually adjust the trigger level.
- The 12-bit vertical resolution provides 16 times more detail than traditional 8-bit oscilloscopes, allowing for precise capture of subtle signal variations.

This visual illustrates the superior detail provided by the DHO814's 12-bit vertical resolution compared to standard 8-bit oscilloscopes, allowing for more precise capture of subtle signal variations.
4.3 അളക്കൽ പ്രവർത്തനങ്ങൾ
The DHO814 integrates several measurement tools:
- യാന്ത്രിക അളവുകൾ: Access a wide range of automatic measurements for parameters like frequency, period, peak-to-peak voltage, RMS, etc.
- Digital Multimeter (DMM): A built-in 3-digit DMM for basic voltagഇ, നിലവിലെ അളവുകൾ.
- ഫ്രീക്വൻസി കൗണ്ടർ: Provides accurate frequency readings.
- FFT Analysis: Perform Fast Fourier Transform (FFT) to analyze the frequency components of your signals.
4.4 Protocol Decoding
The oscilloscope supports decoding of various serial protocols, including RS232/UART, I2C, SPI, and CAN. This feature is particularly useful for debugging embedded systems and automotive applications.
4.5 Connectivity and Remote Control
The DHO814 is equipped with USB, LAN, and HDMI ports. It runs on an Android operating system, enabling remote control via a PC. It supports customized development through SCPI commands and is compatible with LabVIEW, Visual Basic, and Visual C++.
5. പരിപാലനം
Proper maintenance ensures the longevity and accuracy of your oscilloscope:
- വൃത്തിയാക്കൽ: Keep the device clean and free from dust. Use a soft, dry cloth for cleaning the exterior. Do not use abrasive cleaners, solvents, or harsh chemicals.
- സംഭരണം: Store the oscilloscope in a cool, dry environment, away from direct sunlight and extreme temperatures.
- പ്രോബ് കെയർ: Handle probes carefully. Avoid bending or stressing the cables. Replace damaged probes immediately.
6. പ്രശ്നപരിഹാരം
If you encounter issues with your DHO814, refer to the following common troubleshooting steps:
- ഉപകരണം ഓണാകുന്നില്ല: Ensure the power adapter is correctly connected to both the oscilloscope and a functional power outlet. If using a power bank, verify it is charged and compatible.
- വേവ്ഫോം ഡിസ്പ്ലേ ഇല്ല: Check that probes are securely connected to the input channels and the signal source. Verify the vertical scale and horizontal time base settings are appropriate for the input signal. Adjust the trigger level or use the 'Auto' trigger function.
- അസ്ഥിരമായ തരംഗരൂപം: Adjust the trigger source, mode, and level. Ensure the trigger point is stable.
- Incorrect Measurements: Verify probe attenuation settings match the physical probe (e.g., 1X, 10X). Ensure the measurement parameters are correctly selected.
For further assistance, please contact RIGOL technical support.
7 സ്പെസിഫിക്കേഷനുകൾ
Key technical specifications for the RIGOL DHO814 Digital Oscilloscope:
| ഫീച്ചർ | സ്പെസിഫിക്കേഷൻ |
|---|---|
| ബ്രാൻഡ് | റിഗോൾ |
| മോഡൽ | DHO814 |
| ബാൻഡ്വിഡ്ത്ത് | 100 MHz |
| ചാനലുകൾ | 4 അനലോഗ് ചാനലുകൾ |
| Sample നിരക്ക് | 1.25 GSa/s |
| മെമ്മറി ഡെപ്ത് | 25 Mpts |
| ലംബ മിഴിവ് | 12 ബിറ്റുകൾ |
| പ്രദർശിപ്പിക്കുക | 7-inch HD Touchscreen (1024x600) |
| ഇൻ്റർഫേസുകൾ | USB, LAN, HDMI, USB Type-C (Power) |
| Protocol Decoding | RS232/UART, I2C, SPI, CAN |
| FFT വിശകലനം | സ്റ്റാൻഡേർഡ് |
| അളവുകൾ (L x W x H) | 26.53 x 7.74 x 16.17 സെ.മീ |
| ഭാരം | 1.78 കി.ഗ്രാം |
| ഉത്ഭവം | ചൈന |

An illustration detailing the compact dimensions (26.53 x 7.74 x 16.17 cm) and light weight (1.78 kg) of the DHO814, emphasizing its suitability for portable applications.
8. വാറൻ്റിയും പിന്തുണയും
The RIGOL DHO814 Digital Oscilloscope comes with a 3 വർഷത്തെ വാറൻ്റി, ensuring peace of mind for your investment. RIGOL also provides 24/7 സാങ്കേതിക പിന്തുണ to assist you with any questions or issues you may encounter during the use of your instrument.
For warranty claims or technical assistance, please contact RIGOL EU or refer to the contact information provided with your product documentation.





