1. ບົດແນະນຳ
The VOLTCRAFT DSO-2020 USB is a PC-based digital storage oscilloscope designed for precise signal measurement and analysis. This device connects to your computer via USB, utilizing software to display and process waveforms. It features a 20 MHz bandwidth, two independent channels, and a real-time sampling rate of 48 MSa/s, making it suitable for various electronic testing and development applications. This manual provides essential information for the safe and effective use of your oscilloscope.
2. ຂໍ້ມູນຄວາມປອດໄພ
Please read and understand all safety instructions before operating the device. Failure to follow these instructions may result in injury or damage to the device.
- Always connect the oscilloscope to a computer using a certified USB cable.
- Ensure proper grounding of the PC and the measurement setup to prevent electrical shock.
- ບໍ່ເກີນປະລິມານການປ້ອນຂໍ້ມູນສູງສຸດtage ratings for each channel (e.g., MAX 45V for CH1/CH2).
- Avoid operating the device in wet or damp ເງື່ອນໄຂ.
- ຢ່າເປີດອຸປະກອນ casing; ບໍ່ມີສ່ວນທີ່ຜູ້ໃຊ້ບໍລິການພາຍໃນ.
- Use only probes and accessories specified for this oscilloscope.
3. ຜະລິດຕະພັນເກີນview
The VOLTCRAFT DSO-2020 USB is a compact unit designed for portability and ease of use with a personal computer. Below are images illustrating the device and its key connection points.

ຮູບ 3.1: ດ້ານຫນ້າ view of the VOLTCRAFT DSO-2020 USB PC Oscilloscope, showing its compact design and protective casing.

ຮູບທີ 3.2: ມຸມ view of the oscilloscope, highlighting the USB-B port for PC connection and the USBXI port.

ຮູບ 3.3: ດ້ານຫລັງ view showing the BNC input connectors for Channel 1 (CH1) and Channel 2 (CH2), along with the 1KHz 2Vp-p calibration output and ground terminals.
4. ຕັ້ງຄ່າ
4.1 ການຕິດຕັ້ງຊອບແວ
Before connecting the DSO-2020 USB, install the necessary software and drivers on your computer. Refer to the included software CD or the manufacturer's website for the latest version and installation instructions. Typically, this involves running an installer and following on-screen prompts.
4.2 ການເຊື່ອມຕໍ່ຮາດແວ
- Connect the USB cable from the DSO-2020 USB device to an available USB port on your computer.
- Once connected, your operating system should detect the device. If drivers were installed correctly, the device should be recognized by the oscilloscope software.
- Connect your oscilloscope probes to the CH1 and/or CH2 BNC input connectors as required for your measurement. Ensure probes are securely attached.
- For accurate measurements, perform probe compensation if using passive probes. Refer to your probe's manual for specific instructions.
5. ຄໍາແນະນໍາການດໍາເນີນງານ
This section outlines the basic steps for operating your VOLTCRAFT DSO-2020 USB oscilloscope.
5.1 Launching the Software
After successful installation and connection, launch the VOLTCRAFT oscilloscope application from your computer's desktop or start menu. The software interface will display a virtual oscilloscope screen, similar to a traditional benchtop unit.
5.2 Basic Signal Acquisition
- Connect Signal: Attach the probe to the circuit point you wish to measure.
- ການເລືອກຊ່ອງ: In the software, enable the desired channel (CH1 or CH2).
- Vertical Scale (Volts/Div): Adjust the vertical scale to fit the signal amplitude on the screen.
- Horizontal Scale (Time/Div): Adjust the horizontal scale to view the signal's period or frequency.
- ການຕັ້ງຄ່າ Trigger: Configure the trigger source, type (edge, pulse), and level to stabilize the waveform. The software provides controls similar to a physical oscilloscope.
- ຕັ້ງຄ່າອັດຕະໂນມັດ: Utilize the automatic setup function within the software. This feature automatically adjusts the vertical and horizontal settings to display the input signal optimally.
5.3 Data Processing and Export
The DSO-2020 USB allows for advanced data processing and storage:
- ການເກັບຮັກສາຮູບແບບຄື້ນ: Captured waveforms can be saved directly to your computer for later analysis.
- ຟັງຊັນການວັດແທກ: The software includes various automatic measurement functions (e.g., Vpp, Vrms, Frequency, Period).
- ການສົ່ງອອກຂໍ້ມູນ: Measurement data can be exported to formats such as Excel for further analysis and reporting.
- ຫ້ອງທົດລອງVIEW ຄວາມເຂົ້າກັນໄດ້: The device is compatible with LabVIEW, allowing for integration into custom measurement and automation systems.
6. ບໍາລຸງຮັກສາ
ການບຳລຸງຮັກສາທີ່ເໝາະສົມຮັບປະກັນອາຍຸການໃຊ້ງານ ແລະ ຄວາມແມ່ນຍຳຂອງອອດຊິວໂລສະໂຄບຂອງທ່ານ.
- ທໍາຄວາມສະອາດ: ໃຊ້ຜ້າປຽກແຫ້ງເພື່ອເຮັດຄວາມສະອາດດ້ານນອກຂອງອຸປະກອນ. ຢ່າໃຊ້ເຄື່ອງເຮັດຄວາມສະອາດຂັດຫຼືສານລະລາຍ.
- ການເກັບຮັກສາ: Store the oscilloscope in a dry, dust-free environment when not in use. Avoid extreme temperatures.
- Probe Care: Handle probes carefully. Avoid bending or stressing the cables. Store them properly to prevent damage.
- ອັບເດດຊອບແວ: Regularly check the VOLTCRAFT website for software and driver updates to ensure optimal performance and compatibility.
7. ການແກ້ໄຂບັນຫາ
ພາກສ່ວນນີ້ແກ້ໄຂບັນຫາທົ່ວໄປທີ່ທ່ານອາດຈະພົບ.
- ອຸປະກອນບໍ່ຮັບຮູ້:
- Ensure the USB cable is securely connected to both the oscilloscope and the PC.
- ກວດສອບວ່າໄດຣເວີໄດ້ຖືກຕິດຕັ້ງຢ່າງຖືກຕ້ອງ. ຕິດຕັ້ງຄືນໃໝ່ຖ້າຈຳເປັນ.
- ລອງໃຊ້ພອດ USB ອື່ນໃນຄອມພິວເຕີຂອງທ່ານ.
- ບໍ່ມີສັນຍານສະແດງ:
- Check that the probe is properly connected to the input channel and the circuit under test.
- Ensure the correct channel is enabled in the software.
- Adjust the vertical (Volts/Div) and horizontal (Time/Div) scales.
- Check trigger settings; an incorrect trigger level can prevent a stable display.
- Verify the signal source is active and within the oscilloscope's measurement range.
- ຮູບແບບຄື້ນບໍ່ໝັ້ນຄົງ:
- Adjust the trigger level and trigger type (e.g., edge trigger).
- Ensure the trigger source is set to the channel with the signal.
- Check for noise in the measurement environment.
8. ຂໍ້ມູນຈໍາເພາະ
The following table details the technical specifications of the VOLTCRAFT DSO-2020 USB PC Oscilloscope.
| ຄຸນສົມບັດ | ຂໍ້ມູນຈໍາເພາະ |
|---|---|
| ຜູ້ຜະລິດ | VOLTCRAFT |
| ໝາຍເລກຕົວແບບ | DSO-2020 USB |
| ແບນວິດ | 20 MHz |
| ຊ່ອງ | 2 |
| Sampling Rate (Real-time) | 48 MSa/s |
| ຄວາມເລິກຂອງຫນ່ວຍຄວາມຈໍາ | 1 Mpts |
| ຄວາມລະອຽດ | 8 ບິດ |
| ຂະໜາດ (L x W x H) | 20.5 x 3.8 x 12.5 cm |
| ນ້ຳໜັກ | 430 g |
| ປະເພດແຫຼ່ງພະລັງງານ | Hand-operated (USB powered) |
| ຄຸນນະສົມບັດພິເສດ | Two independent channels, display similar to standard oscilloscope, automatic setup function, data export to Excel, LabVIEW ເຂົ້າກັນໄດ້. |
| ອົງປະກອບລວມ | 1 unit (oscilloscope) |
| ຕ້ອງໃຊ້ແບັດເຕີຣີ | ບໍ່ |
9. ການຮັບປະກັນແລະການສະຫນັບສະຫນູນ
For warranty information, technical support, or service inquiries, please refer to the documentation provided with your purchase or visit the official VOLTCRAFT website. Contact details for customer support can typically be found on the manufacturer's product page or in the included warranty card.
10. ວິດີໂອຜະລິດຕະພັນຢ່າງເປັນທາງການ
No official product videos from the seller were found in the provided data for this specific model. Please refer to the manufacturer's website or official channels for any available video resources.





