1. ആമുഖം
The RIGOL DHO802 Digital Oscilloscope is a high-performance instrument designed for precise signal analysis. It features ultra-low background noise for pure signal acquisition and a 12-bit hardware high resolution across all series. With up to 70MHz analog bandwidth and 2 analog channels, it supports real-time sampling rates up to 1.25 GSa/s and a storage depth of up to 25 Mpts. The Ultra Aqua mode provides an impressive 1 million wfms/s waveform capture rate, making it ideal for capturing transient events.
Key features include gray scale digital real-time brightness function, waveform search and navigation, a 7-inch 1024x600 high-definition touch screen, and a new Flex knob for enhanced interactive experience. Connectivity options include USB Device & Host, LAN, and HDMI ports. The compact design ensures convenient maneuverability, and it supports online version upgrades.
Figure 1.1: Common applications for the DHO802 Digital Oscilloscope, such as embedded development, factory production lines, instrument maintenance, education and research, and automotive manufacturing.
2. ബോക്സിൽ എന്താണുള്ളത്?
- പ്രധാന യൂണിറ്റ് (1)
- Passive Probes (150MHz) (2)
- വൈദ്യുതി വിതരണം (1)
- USB കേബിൾ (1)
- Grounding Cable (1)
- വാറന്റി കാർഡ് (1)
- Calibration Certificate (1)
- Card Certificate of Conformity (1)
Figure 2.1: Contents of the RIGOL DHO802 Digital Oscilloscope packaging, including the main unit, probes, power supply, USB cable, grounding cable, and documentation.
3. സജ്ജീകരണം
3.1 അൺപാക്കിംഗും പരിശോധനയും
Carefully remove the oscilloscope and all accessories from the packaging. Inspect all items for any signs of damage during transit. If any damage is found, contact your supplier immediately.
3.2 പവർ കണക്ഷൻ
- Ensure the oscilloscope is placed on a stable, flat surface with adequate ventilation.
- Connect the provided power cable to the power input on the rear panel of the oscilloscope.
- Plug the other end of the power cable into a suitable AC power outlet.
- Press the power button on the front panel to turn on the device.
3.3 പ്രോബ് കണക്ഷൻ
The DHO802 comes with two passive probes. To connect a probe:
- Align the BNC connector of the probe with one of the input channels (CH1 or CH2) on the front panel.
- Push the connector in and twist clockwise until it locks into place.
- Attach the probe's ground clip to a common ground point in your circuit.
- For accurate measurements, ensure the probe compensation is correctly adjusted. Refer to the "Probe Compensation" section in the full manual for detailed instructions.
Figure 3.1: The RIGOL DHO802 Digital Oscilloscope with its included probes and cables, ready for setup.
4. പ്രവർത്തന നിർദ്ദേശങ്ങൾ
4.1 ഫ്രണ്ട് പാനൽ ഓവർview
The front panel of the DHO802 features a 7-inch 1024x600 high-definition touch screen and various controls for intuitive operation. Key controls include vertical scale and position knobs for each channel, horizontal scale and position knobs, trigger controls, and dedicated function buttons.
ചിത്രം 4.1: മുൻഭാഗം view of the DHO802, highlighting the touch screen and physical controls.
4.2 Basic Waveform Acquisition
- നിങ്ങൾ അളക്കാൻ ആഗ്രഹിക്കുന്ന സിഗ്നൽ ഉറവിടത്തിലേക്ക് പ്രോബ് ബന്ധിപ്പിക്കുക.
- അമർത്തുക ഓട്ടോ button on the front panel for automatic setup of vertical, horizontal, and trigger parameters.
- ക്രമീകരിക്കുക ലംബ സ്കെയിൽ (V/div) and ലംബ സ്ഥാനം knobs for each channel to optimize the waveform display.
- ക്രമീകരിക്കുക തിരശ്ചീന സ്കെയിൽ (s/div) and തിരശ്ചീന സ്ഥാനം knobs to view the desired time duration of the waveform.
- ഉപയോഗിക്കുക ട്രിഗർ controls to stabilize repetitive waveforms.
4.3 വിപുലമായ സവിശേഷതകൾ
The DHO802 supports various advanced features accessible via the touch screen and Flex knob:
- Waveform Search and Navigation: Utilize the touch screen to easily navigate and search for specific events within long waveform records.
- Gray Scale Digital Real-time Brightness: Enhance waveform visibility with 256 levels of brightness, revealing signal details that might otherwise be hidden.
- കണക്റ്റിവിറ്റി: Use the USB, LAN, and HDMI ports for data transfer, remote control, and external display.
The oscilloscope's system supports switching between 8 major languages, including Chinese, English, German, French, Korean, Portuguese, Polish, and Japanese.
Figure 4.2: The DHO802 display demonstrating multi-language support.
4.4 വീഡിയോ പ്രദർശനം
No official product videos from the seller were available for embedding at this time, as per the embedding guidelines.
5. പരിപാലനം
- Keep the oscilloscope clean and free from dust. Use a soft, dry cloth for cleaning the exterior.
- തീവ്രമായ ഊഷ്മാവ്, ഈർപ്പം അല്ലെങ്കിൽ നേരിട്ടുള്ള സൂര്യപ്രകാശം എന്നിവയിലേക്ക് ഉപകരണം എക്സ്പോഷർ ചെയ്യുന്നത് ഒഴിവാക്കുക.
- Do not block the ventilation openings on the rear and sides of the instrument.
- Regularly check the probes and cables for any signs of wear or damage. Replace if necessary.
- For internal cleaning or repair, contact qualified service personnel.
6. പ്രശ്നപരിഹാരം
- ശക്തിയില്ല: Ensure the power cable is securely connected and the power outlet is functional. Check the power button.
- No Waveform Display: Verify probes are correctly connected to the input channels and the signal source. Check vertical and horizontal scale settings. Ensure the trigger is properly set or use the Auto button.
- അസ്ഥിരമായ തരംഗരൂപം: Adjust the trigger level and trigger mode. Ensure the trigger source is appropriate for the signal.
- Software Freezing: If the software locks up, try restarting the device. If the issue persists, check for available online firmware updates.
- Distorted Waveform: Check probe compensation. Ensure the input signal does not exceed the oscilloscope's maximum input voltage.
For persistent issues, refer to the comprehensive help file built into the device or contact RIGOL customer support.
7 സ്പെസിഫിക്കേഷനുകൾ
| ഫീച്ചർ | സ്പെസിഫിക്കേഷൻ |
|---|---|
| ബാൻഡ്വിഡ്ത്ത് | 70 MHz |
| അനലോഗ് ചാനലുകൾ | 2 + എക്സ്റ്റൻഷൻ |
| തത്സമയ എസ്ample നിരക്ക് | Up to 1.25 GSa/s |
| മെമ്മറി ഡെപ്ത് | Up to 25 Mpts |
| Waveform Capture Rate | Up to 1,000,000 wfms/s (Ultra Aqua mode) |
| ലംബ മിഴിവ് | 12-ബിറ്റ് |
| Vertical Sensitivity Range | 500 µV/div to 10 V/div |
| പ്രദർശിപ്പിക്കുക | 7-inch 1024 x 600 HD Touch Screen |
| കണക്റ്റിവിറ്റി | USB Device & Host, LAN, HDMI |
| ഉൽപ്പന്ന അളവുകൾ | 10.5 x 6.4 x 3.0 ഇഞ്ച് (265.36 x 161.75 x 77.38 മിമി) |
| ഉൽപ്പന്ന ഭാരം | 3.9 പൗണ്ട് (1.78 കി.ഗ്രാം) |
Figure 7.1: Key technical specifications of the DHO802 Digital Oscilloscope, highlighting its 70MHz bandwidth and 12-bit resolution.
Figure 7.2: Physical dimensions and weight of the RIGOL DHO802 Digital Oscilloscope.
8. വാറൻ്റിയും പിന്തുണയും
The main body of RIGOL equipment, including the DHO802 Digital Oscilloscope, comes with a standard 3-year warranty. For detailed warranty terms and conditions, please refer to the warranty card included in the product packaging.
For further support, technical assistance, or service inquiries, please visit the official Rigol Store on Amazon: Rigol Store.
