1. Introduction
The Hanmatek HO51 is a compact and versatile handheld device that integrates a digital oscilloscope, a digital multimeter, and a signal generator into a single unit. Designed for electronic enthusiasts, engineers, and students, it offers a wide range of measurement and signal generation capabilities for various applications, including car repair, appliance repair, research, education, and electronic component testing.
Key Features:
- Digital Oscilloscope
- Digital Multimeter (20000 Counts)
- Signal Generator
- 250MSa/s Real-Time Sampling Rate
- Single Channel, 50MHz Bandwidth
- 3.5-inch HD LED Display
- Built-in 2000mAh Rechargeable Battery
- Supports 8 Languages
- Durable ABS material with silicone jacket
- Expandable stand for convenient viewing
2. Device Layout and Controls
Familiarize yourself with the device's layout and controls before operation.
- Display Area: Shows waveforms, measurement readings, and menu options.
- Multi-Function Keys (F1-F4): Context-sensitive keys for various functions depending on the active mode.
- Switch Key: Toggles between different display views or settings.
- Channel Key (CH): Selects or configures the input channel (for oscilloscope).
- System Key (System): Enters the system settings menu.
- Save Key (Save): Saves current waveform data or settings.
- Power Switch Key: Turns the device on/off.
- Trigger Menu Key (Trig/Δ): Accesses oscilloscope trigger settings or acts as a Relative Value Key in Multimeter mode.
- HOR Key (HOR): Adjusts horizontal scale/position in oscilloscope mode or acts as a Return Key.
- Return Key (↩): Navigates back in menus or exits current function.
- Measurement Menu Key (Measure Range): Accesses measurement options for oscilloscope or range selection for multimeter.
- Direction Keys (Up, Down, Left, Right): Navigates menus, adjusts parameters, or functions as direction keys.
- Automatic Setting Key (Auto): Automatically adjusts oscilloscope settings or acts as an Automatic Range Key in Multimeter mode.
- Stop/Run Key (▶/‖): Starts or stops oscilloscope waveform acquisition or acts as a Value Hold Key in Multimeter mode.
- Multimeter Input Port (A, mA, COM, QVC+): Connectors for multimeter test leads.
- The Measured Signal Input Connector (HD): BNC connector for oscilloscope probe input.
- Probe Compensation / Signal Generator Output Connector: Used for probe compensation (2.5V/1kHz square wave) or as the signal generator output.
- Charging or USB Communication Interface (Type-C): For charging the device and connecting to a computer for data transfer.
- Bracket: Foldable stand for hands-free operation.
3. Setup
3.1 Initial Charging
Before first use, fully charge the device using the provided Type-C USB cable. Connect the cable to the Charging or USB Communication Interface on the side of the device and to a standard USB power adapter (not included).
3.2 Power On/Off
Press and hold the Power Switch Key to turn the device on or off.
3.3 Language Selection
The device supports 8 languages. To change the language, navigate to the System Settings menu using the System Key and select the desired language option.
4. Operating Instructions
4.1 General Operation
- Mode Selection: Press the Mode Key to switch between Oscilloscope, Multimeter, and Signal Generator modes.
- Navigation: Use the Direction Keys (Up, Down, Left, Right) to navigate through menus and adjust parameter values.
- Confirmation/Selection: The center button within the direction keys often serves as a confirmation or selection button.
- Return: Press the Return Key (↩) to go back to the previous menu or exit a function.
4.2 Oscilloscope Mode
The oscilloscope function allows you to visualize electrical signals. The HO51 features a single channel with a 50MHz bandwidth and 250MSa/s sampling rate.
- Connect Probe: Connect the oscilloscope probe to the Measured Signal Input Connector (HD).
- Select Mode: Ensure the device is in Oscilloscope mode using the Mode Key.
- Adjust Settings:
- Use the Channel Key (CH) to configure channel settings.
- Use the Trigger Menu Key (Trig/Δ) to set trigger conditions (Auto, Normal, Single; Rising edge, Falling edge).
- Adjust vertical scale (Volts/Div) and horizontal time base (Time/Div) using the Direction Keys or Multi-Function Keys (F1-F4) as indicated on the screen.
- Press the Automatic Setting Key (Auto) for quick automatic waveform display optimization.
- Start/Stop Acquisition: Press the Stop/Run Key (▶/‖) to start or stop waveform acquisition.
- Measurements: Use the Measurement Menu Key (Measure Range) to display various waveform parameters.
4.3 Signal Generator Mode
The signal generator can output various waveforms for testing circuits.
- Connect Output: Connect the signal generator output from the Probe Compensation / Signal Generator Output Connector to your circuit.
- Select Mode: Switch to Signal Generator mode using the Mode Key.
- Configure Waveform:
- Use the Multi-Function Keys (F1-F4) and Direction Keys to select the desired waveform type (Sine, Square, Ramp, Pulse).
- Adjust the frequency (10Hz-100KHz for Sine, Square, Ramp; 10Hz-10KHz for Pulse) and amplitude (1Vpp or 2.5Vpp).
- Output Signal: The device will continuously output the configured signal.
4.4 Multimeter Mode
The multimeter function provides precise measurements of voltage, current, resistance, capacitance, and performs continuity and diode tests.
- Connect Test Leads: Insert the red and black test leads into the appropriate Multimeter Input Ports (e.g., COM for black, VΩC+ for red for voltage/resistance). Ensure correct polarity and port selection for the measurement type.
- Select Mode: Switch to Multimeter mode using the Mode Key.
- Select Measurement: Use the Measurement Menu Key (Measure Range) to select the desired measurement type (Voltage, Current, Resistance, Capacitance, On/Off Test, Diode Test).
- Auto Ranging: The device supports auto-ranging. You can also use the Automatic Setting Key (Auto) to enable/disable auto-ranging.
- Read Measurement: The measurement will be displayed on the screen.
- Hold Value: Press the Stop/Run Key (▶/‖) to hold the current reading.
4.5 Waveform Saving & Data Export
The HO51 allows you to save captured waveforms and export data for further analysis on a computer.
- Save Waveform: In Oscilloscope mode, after capturing a desired waveform, press the Save Key to store it internally.
- Connect to PC: Connect the device to your computer using the Type-C USB cable via the Charging or USB Communication Interface.
- Data Transfer: The device should appear as a removable storage device or be accessible via dedicated software (if provided by the manufacturer) for exporting saved waveform data.
5. Applications
The Hanmatek HO51 is suitable for a variety of professional and educational applications:
- Outdoor Maintenance: Portable design for field diagnostics.
- Appliance Repair: Troubleshooting electronic components in household appliances.
- Research and Teaching: Ideal for educational purposes and laboratory experiments.
- DIY Learning: Perfect for hobbyists and self-learners in electronics.
6. Specifications
6.1 General Specifications
- Brand Name: HANMATEK
- DIY Supplies: Electrical
- Origin: Mainland China
- Certification: CE
- Battery Included: Yes
- IS Battery Demountable: No
- High-concerned chemical: None
- Display Size: 3.0 - 4.9 Inches
- Display Resolution: 320*240 Pixels
6.2 Oscilloscope Characteristics
| Characteristic | Description |
|---|---|
| Channel | 1 |
| Bandwidth | 50MHz |
| Vertical Resolution | 8 bit |
| Sampling Method | Sampling, peak detection |
| Real Time Sampling Rate | 250 MSa/s |
| Waveform Refresh Rate | 10,000 wfms/s (Max Waveform Capture Rate: 30,000wfm/s) |
| Time Base Accuracy | ±100ppm |
| Input Coupling | DC, AC, GND |
| Probe Attenuation | 1X, 10X, 100X, 1000X, 10000X |
| Maximum Input Voltage | 400V (DC+AC, PK-PK) |
| Trigger Mode | Auto, Normal, Single |
| Trigger Type | Rising edge, Falling edge |
| Coupling Method | AC / DC |
| Record Length | 8K |
6.3 Waveform Generator Characteristics
| Characteristic | Description |
|---|---|
| Waveform Frequency (Sine, Square, Ramp) | 10Hz~100KHz (Stepping in 1-2-5 way) |
| Waveform Frequency (Pulse) | 10Hz~10KHz (Stepping in 1-2-5 way) |
| Amplitude | 1Vpp or 2.5Vpp |
6.4 Multimeter Characteristics
| Characteristic | Description |
|---|---|
| Digital Display | 24,000 readings |
| Measurement Type | Voltage, current, resistance, capacitance, on/off, diode |
| Maximum Input Voltage | AC: 750V, DC: 1000V |
| Maximum Input Current | AC: 10A, DC: 10A |
| On/Off Test | √ (<50Ω) |
| Diode Test | √ (<0-2V) |
| Auto Range | √ |
| TRMS | √ |
7. Maintenance
Proper maintenance ensures the longevity and accuracy of your Hanmatek HO51.
- Cleaning: Use a soft, damp cloth to clean the device. Do not use abrasive cleaners or solvents. Ensure the device is powered off and disconnected from any power source before cleaning.
- Battery Care: The device has a built-in 2000mAh rechargeable battery. For optimal battery life, avoid fully discharging the battery frequently and store the device with a partial charge if not used for extended periods.
- Storage: Store the device in a cool, dry place, away from direct sunlight, extreme temperatures, and high humidity.
- Physical Protection: The device features a durable ABS material with a silicone jacket for protection against drops and impacts. However, avoid unnecessary rough handling.
- Probe Care: Handle probes and test leads carefully. Inspect them regularly for any damage to insulation or connectors. Replace damaged accessories immediately.
8. Troubleshooting
If you encounter issues with your Hanmatek HO51, refer to the following common problems and solutions:
- Device does not power on:
- Ensure the battery is charged. Connect the device to a power source using the Type-C cable and allow it to charge for some time.
- Verify that the power button is pressed and held correctly.
- No signal displayed in Oscilloscope mode:
- Check probe connections to the device and the circuit under test.
- Ensure the probe is properly compensated and set to the correct attenuation (e.g., 1X, 10X).
- Adjust the vertical scale (Volts/Div) and horizontal time base (Time/Div) to appropriate ranges.
- Try using the 'Auto' function to automatically adjust settings.
- Verify the trigger settings are appropriate for the signal being measured.
- Incorrect readings in Multimeter mode:
- Ensure test leads are connected to the correct input ports for the desired measurement (e.g., VΩC+ for voltage/resistance, A/mA for current).
- Check the integrity of the test leads for any breaks or damage.
- Verify the measurement type selected matches the actual measurement being performed.
- Ensure the device is in the correct range (if not using auto-ranging).
- Signal Generator output is not as expected:
- Verify the waveform type, frequency, and amplitude settings are correctly configured.
- Check the connection from the signal generator output to the receiving circuit.
- Cannot export data to computer:
- Ensure the Type-C USB cable is securely connected to both the device and the computer.
- Try a different USB port on your computer.
- Restart both the HO51 and your computer.
9. User Tips
- Data Export: For detailed analysis, remember to export your saved waveform data to a computer via the Type-C USB interface. This allows for more in-depth review and documentation of your measurements.
- Probe Compensation: Regularly perform probe compensation to ensure accurate oscilloscope measurements, especially when using new probes or after significant temperature changes.
- Battery Management: While the device has a built-in battery, keeping it charged when not in use for long periods can help maintain battery health.
- Utilize the Stand: The integrated expandable stand is very useful for hands-free operation on a workbench, improving visibility and convenience during prolonged use.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided at the time of purchase or contact the HANMATEK Official Store directly. Keep your proof of purchase for any warranty claims.
