1. Introduction
The Hantek DSO4254C is a versatile 4-channel digital storage oscilloscope integrated with a 1-channel arbitrary/function waveform generator. Designed for ease of use, it features independent controls for both oscilloscope and waveform generator functions. With a bandwidth of 250MHz and a 1GS/s sample rate, it offers advanced digital triggering, high sensitivity, and a clear 7-inch 64K color TFT display (800*480 pixels).
2. Key Features
- 4-Channel Oscilloscope with EXT, DVM, and Auto Range Function.
- 250MHz Bandwidth, minimum measurement range 500μV/div, 1GS/s sample rate.
- Over 32 types of automatic measurement functions.
- Advanced digital trigger system with high trigger sensitivity and low trigger jitter.
- Over 14 types of trigger functions: Edge, Overtime, Pulse, Pattern, Interval, UART, CAN, SPI, I2C, etc.
- Integrated Function/Arbitrary Signal Generator: 25MHz, 12-bit resolution, 200MHz DDS, capable of generating ARB, square, sine, triangular, trapezoidal, impulse, and DC waveforms.
- Integrated USB Host/Device for convenient PC communication and U-stick storage/system updates.
- Supports a variety of SCPI remote control commands.
- Optional ports: RS232, LAN, HDMI, touch screen, WIFI communication, SD card storage.
- Stable and reliable quality, sturdy and durable construction.
3. Package Contents
The following items are included with your Hantek DSO4254C Digital Oscilloscope:
- USB computer communication line x 1
- Probe x 4
- 110-230V wide voltage-power line x 1
- Signal output line (BNC to BNC) x 1
- Certificate x 1
4. Setup
Power Connection: Connect the provided 110-230V wide voltage-power line to the oscilloscope's power input and a suitable power outlet.
Probe Connection: Connect the oscilloscope probes to the desired input channels (1, 2, 3, or 4) on the front panel. Ensure a secure connection.
Signal Generator Connection (Optional): If using the integrated signal generator, connect the signal output line (BNC to BNC) from the 'Gen Out' port to the device under test or an oscilloscope input channel for monitoring.
USB Connection (Optional): For PC communication or system updates, connect the USB communication line from the oscilloscope's USB port to your computer.
Power On: Press the recessed power button located on the front panel. You may need to use a fingernail to fully engage the button.
Probe Calibration: Before taking measurements, it is recommended to calibrate all four probes. Connect a probe to the calibrator output (1kHz, 1V) on the front panel and adjust the probe compensation for a flat-top square wave display.
5. Operating Instructions
5.1. Basic Oscilloscope Operation
- Vertical Controls: Use the vertical knobs for each channel (1-4) to adjust the voltage scale (V/div) and vertical position of the waveform.
- Horizontal Controls: Use the horizontal knobs to adjust the time base (s/div) and horizontal position of the waveform.
- Trigger System: The trigger system allows for stable waveform display. Access trigger settings via the 'Trigger' menu. You can select trigger type (Edge, Pulse, Video, etc.), source channel, slope, and level. The advanced trigger functions include options for UART, CAN, SPI, and I2C buses.
- Auto Scale: Press the 'Auto Scale' button for automatic adjustment of vertical and horizontal settings to display a stable waveform.
5.2. Mathematics Functions
The oscilloscope supports various mathematical operations on waveforms. Access the 'Math' menu to select operators (e.g., +, -, *, /) and source channels. This allows for complex signal analysis, such as adding or subtracting signals from different channels.
5.3. Measurement Functions
- Automatic Measurements: The device offers over 32 types of automatic measurements. Access the 'Measure' menu to select parameters like frequency, period, amplitude, Vmax, Vmin, Vpp, etc.
- Cursor Measurements: Use the 'Cursor' function to manually measure voltage and time differences on the waveform.
5.4. Waveform Generator
The integrated waveform generator can produce various signal types:
- Sine wave
- Square wave
- Ramp (Triangular/Trapezoidal)
- Pulse
- Noise
- DC
- Arbitrary waveforms (Arb1, Arb2, Arb3, Arb4)
Access the 'Wave Gen' menu to select the waveform type, frequency (up to 25MHz), amplitude (up to 1.5V), and offset. You can also load custom arbitrary waveforms from a USB flash drive.
5.5. Saving and Updating
- USB Storage: The oscilloscope supports U-stick storage for saving waveforms, settings, and screenshots. Insert a USB flash drive into the front panel USB host port.
- System Update: Firmware updates can be performed via the USB device port. Refer to the official Hantek website for the latest firmware and instructions.
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the oscilloscope. Do not use abrasive cleaners or solvents.
- Storage: Store the oscilloscope in a dry, dust-free environment when not in use.
- Software Updates: Regularly check the manufacturer's website for firmware updates to ensure optimal performance and access to new features.
7. Troubleshooting
- No Power: Ensure the power cable is securely connected to both the oscilloscope and a working power outlet. Check the power button is fully pressed.
- No Waveform Display: Verify probes are correctly connected to the input channels and the device under test. Check the vertical and horizontal scale settings, and ensure the trigger is properly configured or use the 'Auto Scale' function.
- Software Issues: If experiencing issues with PC communication or custom waveform generation software, ensure all required drivers and libraries are installed. Compatibility issues with older operating systems (e.g., Windows 7) may occur.
- Incorrect Measurements: Perform probe calibration as described in the Setup section.
8. Specifications
| Feature | Specification |
|---|---|
| Brand Name | Hantek |
| Model Number | Hantek DSO4254C |
| HANTEK Model | DSO4254C |
| Digital Channels | 4 |
| Band Width | 250MHz (100-349MHz range) |
| Real Time Sampling Rate | 1GSa/S |
| Record Length | 64K (4KSa from JSON, 64K from image) |
| Max Waveform Capture Rate | 30,000wfm/s |
| Display Resolution | 800*480 Pixels |
| Display Size | 7 Inches & Above |
| Certification | CE |
| DIY Supplies | Electrical |
| Origin | Mainland China |
| Battery Included | No |
| IS Battery Demountable | No |
| High-concerned chemical | None |
| Waveform Generator | 25MHz, 12Bits resolution, 200MHz DDS |
9. User Tips
- Firmware Update: It is highly recommended to check for and install the latest firmware updates upon receiving your oscilloscope to ensure optimal performance and access to the newest features.
- Power Button: The power button is recessed into the casing. You may need to use a fingernail to press it fully and ensure the device powers on correctly.
- Synchronization Knob: The synchronization knob is relatively small compared to the amplitude adjustment knobs. Take care when adjusting it.
- Custom Waveform Software: If you plan to use the software for generating custom arbitrary waveforms, be aware that there might be compatibility issues with older operating systems like Windows 7.
- Language Support: The oscilloscope's firmware may not include Russian language support, offering only English and a few other European languages.
10. Warranty and Support
For any technical assistance, warranty claims, or further inquiries, please contact the seller or the manufacturer directly. Refer to your purchase documentation for specific warranty terms and contact information.
