1. Introdução
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. Informações de segurança
Leia e compreenda todas as instruções de segurança antes de utilizar o dispositivo. O não cumprimento destas instruções pode resultar em ferimentos ou danos ao dispositivo.
- 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.
- Não exceda o vol máximo de entradatage ratings for each channel (e.g., MAX 45V for CH1/CH2).
- Avoid operating the device in wet or damp condições.
- Não abra o dispositivo casing; não há peças internas que possam ser reparadas pelo usuário.
- Use only probes and accessories specified for this oscilloscope.
3. Produto acabadoview
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.

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

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

Figura 3.3: Traseira 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. Configuração
4.1 Instalação de software
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 Conexão de Hardware
- 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. Instruções de operação
This section outlines the basic steps for operating your VOLTCRAFT DSO-2020 USB oscilloscope.
5.1 Iniciando o 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
- Sinal de conexão: Attach the probe to the circuit point you wish to measure.
- Seleção de canais: In the software, enable the desired channel (CH1 or CH2).
- Escala vertical (Volts/Div): Ajuste a escala vertical para que se ajuste ao sinal. amplitude na tela.
- Escala horizontal (tempo/divisão): Ajuste a escala horizontal para view o período ou a frequência do sinal.
- Configurações do gatilho: Configure the trigger source, type (edge, pulse), and level to stabilize the waveform. The software provides controls similar to a physical oscilloscope.
- Configuração automática: 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:
- Armazenamento de forma de onda: Captured waveforms can be saved directly to your computer for later analysis.
- Funções de medição: The software includes various automatic measurement functions (e.g., Vpp, Vrms, Frequency, Period).
- Exportação de dados: Measurement data can be exported to formats such as Excel for further analysis and reporting.
- LaboratórioVIEW Compatibilidade: The device is compatible with LabVIEW, allowing for integration into custom measurement and automation systems.
6. Manutenção
A manutenção adequada garante a longevidade e a precisão do seu osciloscópio.
- Limpeza: Use um pano macio e seco para limpar a parte externa do dispositivo. Não use produtos de limpeza abrasivos ou solventes.
- Armazenar: Store the oscilloscope in a dry, dust-free environment when not in use. Avoid extreme temperatures.
- Cuidados com a sonda: Handle probes carefully. Avoid bending or stressing the cables. Store them properly to prevent damage.
- Atualizações de software: Regularly check the VOLTCRAFT webSite para atualizações de software e drivers, garantindo desempenho e compatibilidade ideais.
7. Solução De Problemas
Esta seção aborda problemas comuns que você pode encontrar.
- Dispositivo não reconhecido:
- Certifique-se de que o cabo USB esteja firmemente conectado tanto ao osciloscópio quanto ao computador.
- Verifique se os drivers estão instalados corretamente. Reinstale-os, se necessário.
- Tente uma porta USB diferente em seu computador.
- Nenhum sinal exibido:
- 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.
- Ajuste as escalas vertical (Volts/Div) e horizontal (Tempo/Div).
- 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.
- Forma de onda instável:
- 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. Especificações
The following table details the technical specifications of the VOLTCRAFT DSO-2020 USB PC Oscilloscope.
| Recurso | Especificação |
|---|---|
| Fabricante | VOLTCRAFT |
| Número do modelo | DSO-2020 USB |
| Largura de banda | 20 MHz |
| Canais | 2 |
| Sampling Rate (Real-time) | 48 MSa/s |
| Profundidade de memória | 1 Mpts |
| Resolução | 8 bits |
| Dimensões (C x L x A) | 20.5 x 3.8 x 12.5 cm |
| Peso | 430 g |
| Tipo de fonte de alimentação | Hand-operated (USB powered) |
| Características especiais | Two independent channels, display similar to standard oscilloscope, automatic setup function, data export to Excel, LabVIEW compatível. |
| Componentes incluídos | 1 unit (oscilloscope) |
| Pilhas necessárias | Não |
9. Garantia e Suporte
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. Vídeos oficiais do produto
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.





