1. Introduction
The FNIRSI DSO152 and DSO153 are highly practical and cost-effective mini digital portable oscilloscopes designed for maintenance, research, and educational applications. These compact devices offer real-time sampling, a wide bandwidth, and comprehensive trigger functions, making them suitable for analyzing both periodic analog and non-periodic digital signals. They feature a 2.8-inch high-definition LCD screen and a built-in 1000mAh lithium battery for extended portable use.
2. Package Contents
Please check the contents of your package upon arrival. The items included may vary slightly depending on the specific model (DSO152 or DSO153) and chosen options.
2.1. DSO152 Standard Package
- Host device (DSO152)
- Packaging color box
- Alligator clip probe
- Charging cable (USB Type-C)
- Lanyard
- Instruction manual
2.2. DSO153 Package (with P6100 Probe option)
- Host device (DSO153)
- Packaging color box
- Alligator clip probe
- Charging cable (USB Type-C)
- Lanyard
- Instruction manual
- Adapter
- P6100 High Voltage Probe
3. Product Overview
The DSO152/DSO153 features a compact design with intuitive controls and a clear display for efficient operation.
3.1. Key Features
- Highly Sensitive Keys: Ultra-simple and easy-to-understand operation.
- Foldable Stand: Allows for convenient placement and hands-free use.
- Type-C Port: Supports firmware upgrade and charging (5V/1A).
- Gear Toggle Button Design: For switching and adjusting parameters.
- Intelligent Anti-burn: Enhanced protection for durability.
- 1000mAh Lithium Battery: Provides long endurance for portable use.
3.2. Button Functions
| Button | Operation | Function |
|---|---|---|
| ▲ / ▼ | Short press | Parameter addition/subtraction adjustment |
| RUN | Short press | Run/pause waveforms (other pages) |
| RUN | Long press | Show/close detailed parameters |
| Power Button | Short press | Turn On |
| Power Button | Long press | Turn Off |
| AUTO | Short press | Automatic adjustment (frequency below 45Hz cannot be calibrated correctly) |
| MODE | Short press | Control parameters function selection |
| MODE | Long press | Rising edge/falling edge switching |
4. Initial Setup
4.1. Charging the Device
Before first use, fully charge the oscilloscope using the provided USB Type-C cable and a 5V/1A power adapter. The charging indicator light will show the charging status (red during charging, green when fully charged).
4.2. Power On/Off
- To Power On: Short press the Power button (circle with line).
- To Power Off: Long press the Power button.
4.3. Language Settings
The DSO153 model supports 8 languages, while the DSO152 typically supports English only. To change the language on DSO153:
- Navigate to the 'Settings' menu.
- Select 'Language' and choose your preferred language using the Up/Down buttons and the RUN button to confirm.
5. Operating the Oscilloscope
5.1. Oscilloscope Function
The oscilloscope function allows you to visualize and analyze electrical signals.
- One-key AUTO: Press the 'AUTO' button for automatic waveform display without complex adjustments. Note that frequencies below 45Hz may not be calibrated correctly by AUTO.
- Trigger Methods: The device supports Auto, Normal, and Single trigger modes. The DSO153 also offers rising edge/falling edge switching.
- Coupling Method: Select between AC and DC coupling based on your measurement needs.
- Parameter Adjustment: Use the Up/Down buttons to adjust parameters like vertical sensitivity and time base range.
5.2. Signal Generator Function (DSO153 Exclusive)
The DSO153 model includes a signal generator capable of producing various waveforms.
- Waveform Types: Generate sine wave, rectangular wave, sawtooth wave, half wave, full wave, step wave, anti step wave, noise wave, exponential rise, exponential drop, DC signal, multi tone, Sink pulse, and Lorentz wave.
- Adjustable Parameters: Control frequency (0-10KHz), duty cycle (0-100% for rectangular and sawtooth waves), and amplitude (0.1-3.3V).
6. Waveform Analysis (DSO153 Exclusive)
The DSO153 model supports advanced waveform analysis features for detailed insights into complex signals.
- Waveform Pause: Freeze the waveform display to examine specific points.
- Waveform Zoom: Enlarge sections of the waveform for closer inspection.
- Waveform Move: Scroll through the waveform horizontally to view different segments.
7. Specifications
| Feature | DSO152 | DSO153 |
|---|---|---|
| Brand Name | FNIRSI | |
| Model Number | DSO152 | DSO153 |
| DIY Supplies | Electrical | |
| Digital Channels | 1 | |
| Display | 2.8 inches/PPI:320*240 Pixels | |
| Sampling Rate | 2.5MSa/s | 5MSa/s |
| Bandwidth | 200KHz | 1MHz |
| Vertical Sensitivity | 10mV/Div-20V/Div | 10mV/Div-10V/Div |
| Time Base Range | 10µs/Div-50s/Div | 500ns/Div-20s/Div |
| Voltage Range | X1:40V (Vpp:80V), X10: 400V (Vpp:800V) | |
| Trigger Method | Auto/Normal/Single | Automatic/Normal/Single, Rising/Falling Edge |
| Coupling Method | AC/DC | |
| Signal Generator Function | No | Yes (Frequency: 0-10KHz, Duty Cycle: 0-100%, Amplitude: 0.1-3.3V, 14 Waveforms) |
| Square Wave Calibration | Frequency: 1KHz, Duty cycle: 50% | N/A (Signal Generator handles this) |
| Battery Included | Yes | |
| Lithium Battery Capacity | 1000mAh | |
| USB Charging | 5V/1A | |
| Size | 99x68.3x19.5mm | |
| Weight | 100g | |
| Language Support | 1 (English) | 8 Kinds |
| Waveform Pause/Zoom/Move | No | Yes |
| Automatic Shutdown | Yes | |
| Theme Colour Switching | No | Yes |
8. Maintenance
8.1. Battery Care
The device is equipped with a 1000mAh lithium battery, providing approximately 4 hours of continuous use on a full charge. To prolong battery life:
- Charge the device regularly, avoiding complete discharge.
- Store the device in a cool, dry place when not in use for extended periods.
- Utilize the automatic shutdown feature to conserve power. You can configure the auto-shutdown time (e.g., 15min, 30min, 1hour) in the settings menu.
8.2. Cleaning
Use a soft, dry cloth to clean the device. Do not use liquid cleaners or solvents, as they may damage the screen or internal components.
8.3. Firmware Updates
The Type-C port supports firmware upgrades. Check the official FNIRSI website or product page for available updates and instructions.
9. Troubleshooting
- Device does not power on: Ensure the battery is charged. Connect the device to a 5V/1A USB charger and try again.
- No waveform displayed: Check probe connections. Ensure the signal source is active. Use the 'AUTO' button for automatic adjustment. Verify trigger settings.
- Inaccurate readings: Perform probe calibration if using a P6100 probe. Ensure correct voltage range and time base settings.
- Screen frozen: Long press the power button to force a shutdown, then restart the device.
10. User Tips
- Always start with the 'AUTO' function for a quick initial waveform display, then fine-tune parameters manually if needed.
- For the DSO153, experiment with the various signal generator waveforms to test different circuits and components.
- Take advantage of the waveform pause, zoom, and move features on the DSO153 for in-depth analysis of complex or transient signals.
- Adjust the automatic shutdown timer in the settings to match your workflow and maximize battery life.
- Keep the instruction manual handy for quick reference on button functions and specifications.
11. Warranty and Support
For detailed warranty information and technical support, please refer to the official FNIRSI documentation or contact your retailer. An electronic version of the DSO-152 product manual can be found at: DSO-152 Product Manual (PDF).
Video: FNIRSI DSO152 Unboxing and Basic Operation
