HANMATEK HO51 3-in-1 Handheld Oscilloscope Multimeter Waveform Generator User Manual

1. Introduction

This manual provides detailed instructions for the safe and effective operation of your HANMATEK HO51 3-in-1 Handheld Oscilloscope, Multimeter, and Waveform Generator. The HO51 is a versatile instrument designed for electronics enthusiasts, students, and professionals, combining the functionalities of an oscilloscope for waveform analysis, a multimeter for various electrical measurements, and a waveform generator for signal testing. Please read this manual thoroughly before using the device to ensure proper functionality and to prevent damage or injury.

Figure 1: The HANMATEK HO51 device showcasing its three primary functions: Oscilloscope, Multimeter, and Waveform Generator.

2. Safety Information

Always adhere to the following safety precautions to prevent electric shock, fire, or damage to the device or other equipment:

• Do not use the device if it appears damaged or if the insulation on test leads is compromised.
• Ensure the correct function and range are selected before making measurements.
• Do not exceed the maximum input ratings for any function. Refer to the specifications section for limits.
• Avoid contact with live circuits when connecting or disconnecting test leads.
• Use only the probes and accessories supplied or recommended by HANMATEK.
• Do not operate the device in wet environments or in the presence of explosive gases or fumes.
• Always disconnect power to the circuit under test before measuring resistance, capacitance, or continuity.
• When measuring current, ensure the device is connected in series with the load and the circuit is de-energized before connecting.

3. Product Overview

The HANMATEK HO51 integrates a single-channel oscilloscope, a digital multimeter, and a waveform generator into a compact, handheld unit. It features a 3.5-inch color display for clear data visualization and intuitive controls.

3.1 Device Components and Controls

Figure 2: Front and side view of the HANMATEK HO51 with key components and controls labeled.

Refer to Figure 2 for the location of the following components:

• Display Area: 3.5-inch TFT screen for displaying waveforms, measurement readings, and menu options.
• Multi-Function Keys (F1-F4): Context-sensitive keys for menu navigation and function selection.
• Mode Key: Switches between Oscilloscope, Multimeter, and Waveform Generator modes.
• CH Key: Selects the channel (for oscilloscope).
• HOR Key: Adjusts horizontal scale/time base (for oscilloscope).
• System Key: Accesses system settings.
• Save Key: Saves waveforms or measurement data.
• Power Switch Key: Turns the device on/off.
• Trigger Menu Key (Trig/Δ): Accesses trigger settings (oscilloscope) or relative value function (multimeter).
• Navigation Keys (Up, Down, Left, Right, Enter): Used for menu navigation and parameter adjustment.
• Measure/Range Key: Displays measurement menu (oscilloscope) or changes range (multimeter).
• Auto Key: Auto-sets oscilloscope parameters or auto-ranges multimeter.
• Play/Pause Key (▶/‖): Starts/stops waveform acquisition (oscilloscope) or holds value (multimeter).
• Multimeter Input Ports (A, mA, COM, VΩC⊣): For connecting multimeter test leads.
• Measured Signal Input Connector (BNC): For connecting oscilloscope probes.
• Probe Compensation / Signal Generator Output Connector: Provides a 2.5V/1KHz square wave for probe compensation and outputs generated waveforms.
• Charging or USB Communication Interface (USB-C): For charging and PC connection.
• Bracket: Integrated stand for desktop use.

3.2 Included Accessories

Figure 3: The HANMATEK HO51 comes with a comprehensive set of accessories for immediate use.

The package includes:

• HANMATEK HO51 3-in-1 Device
• USB Cable
• Power Adapter
• Passive Oscilloscope Probe
• Multimeter Test Leads
• Signal Generator Output Cable
• Quick Start Guide
• Calibration Tool
• Carrying Case

4. Setup

4.1 Initial Charging

Before first use, fully charge the device. Connect the supplied USB cable to the USB-C port on the side of the HO51 and plug the other end into the power adapter. The charging indicator will show the charging status. A full charge typically takes several hours.

Figure 4: The HO51 features a USB-C charging port and an internal 2000mAh rechargeable battery.

4.2 Powering On/Off

Press and hold the Power Switch Key (located below the Save button) for approximately 2 seconds to turn the device on or off.

4.3 Connecting Probes and Leads

• Oscilloscope Probe: Connect the BNC connector of the oscilloscope probe to the BNC input port on the top of the device. Ensure it is securely twisted into place.
• Multimeter Test Leads: Insert the red test lead into the VΩC⊣ port and the black test lead into the COM port for voltage, resistance, capacitance, and diode measurements. For current measurements, refer to the specific current measurement section.

4.4 Probe Compensation

Before using the oscilloscope probe, it is recommended to perform probe compensation to ensure accurate measurements. Connect the probe to the device and attach the probe tip to the Probe Compensation / Signal Generator Output Connector. Adjust the probe's compensation trimmer until a clean square wave is displayed on the screen.

5. Operating Modes

5.1 Oscilloscope Mode

Press the Mode key until the oscilloscope interface is displayed. This mode allows for the visualization and analysis of electrical waveforms.

Figure 5: The HO51 in oscilloscope mode, showing a typical sine wave measurement.

• Auto-Set: Press the Auto button for automatic adjustment of vertical scale, time base, and trigger level to display a stable waveform.
• Vertical Scale (Volts/Div): Use the Up/Down navigation keys to adjust the vertical sensitivity.
• Time Base (Sec/Div): Use the Left/Right navigation keys to adjust the horizontal time scale.
• Trigger Settings: Press the Trig/Δ key to access trigger options. Use navigation keys to set trigger level, edge (rising/falling), and mode (Auto, Normal, Single).
• Measurements: Press the Measure/Range key to display automatic measurements (e.g., Vpp, Vmax, Vmin, Frequency, Duty Cycle).
• Saving Waveforms: Press the Save key to store the current waveform data.

5.2 Multimeter Mode

Press the Mode key until the multimeter interface is displayed. This mode allows for precise digital measurements of various electrical parameters.

Figure 6: The HO51 in multimeter mode, showing various measurement capabilities.

• Function Selection: Use the F1-F4 keys or navigation keys to select desired measurement function (e.g., DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Capacitance, Diode Test, Continuity).
• Voltage Measurement: Connect test leads to VΩC⊣ and COM. Select AC V or DC V. Connect leads in parallel with the circuit.
• Current Measurement: WARNING: Ensure the circuit is de-energized before connecting. For mA range, connect the red lead to the mA port. For A range, connect the red lead to the A port. Connect the device in series with the circuit.
• Resistance/Capacitance/Diode/Continuity: Connect test leads to VΩC⊣ and COM. Select the appropriate function. Ensure the circuit is de-energized before testing.
• Auto Range: Press the Auto button to enable or disable auto-ranging.
• Data Hold: Press the ▶/‖ key to hold the current measurement on the display.

5.3 Waveform Generator Mode

Press the Mode key until the waveform generator interface is displayed. This mode allows for the generation of various test signals.

Figure 7: The HO51 in waveform generator mode, showing options for different signal types and parameters.

• Waveform Type: Use the navigation keys to select the desired waveform (Sine, Square, Ramp, Pulse).
• Frequency Adjustment: Use the navigation keys to set the output frequency.
• Amplitude Adjustment: Use the navigation keys to set the output amplitude (1Vpp or 2.5Vpp).
• Output Connection: Connect the signal generator output cable to the Probe Compensation / Signal Generator Output Connector and then to the circuit or device under test.

5.4 PC Software Compatibility

The HO51 can connect to a PC via its USB-C port for data transfer and advanced control. This allows for waveform saving and data export for comprehensive analysis.

Figure 8: The HO51 connected to a computer, demonstrating its PC software compatibility for data analysis.

6. Maintenance

• Cleaning: Clean the device with a soft, damp cloth. Do not use abrasive cleaners or solvents.
• Battery Care: To prolong battery life, avoid fully discharging the battery frequently. If storing for extended periods, charge the device to approximately 50% and recharge every few months.
• Storage: Store the device in a cool, dry place, away from direct sunlight and extreme temperatures.
• Probe Care: Inspect test leads and probes regularly for any signs of damage. Replace if necessary.

7. Troubleshooting

8. Specifications

8.1 Oscilloscope Specifications

Figure 9: Detailed specifications for the oscilloscope function of the HO51.

8.2 Multimeter Specifications

Figure 10: Detailed specifications for the multimeter function of the HO51.

8.3 Waveform Generator Specifications

Figure 11: Detailed specifications for the waveform generator function of the HO51.

8.4 General Specifications

• Manufacturer: Shenzhen Hanmatek Precision Technology Co.,Ltd.
• Model Number: HO51
• Item Weight: 410 g
• Product Dimensions: 23 x 13.5 x 7.5 cm
• Batteries: 1 Lithium Polymer battery (included)
• Power Source Type: Battery Powered
• Color: Blue
• Certification: CE

9. Warranty and Support

HANMATEK products are designed and manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official HANMATEK website. Keep your purchase receipt as proof of purchase for warranty claims.