1. Introducció
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. Informació de seguretat
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.
- Assegureu-vos que s'hagin seleccionat la funció i el rang correctes abans de fer mesures.
- 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.
- Desconnecteu sempre l'alimentació del circuit que esteu provant abans de mesurar la resistència, la capacitança o la continuïtat.
- When measuring current, ensure the device is connected in series with the load and the circuit is de-energized before connecting.
3. Producte acabatview
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 Components i controls del dispositiu

Figura 2: frontal i lateral view of the HANMATEK HO51 with key components and controls labeled.
Vegeu la figura 2 per veure la ubicació dels components següents:
- Àrea de visualització: 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.
- Clau de mode: Canvia entre els modes Oscil·loscopi, Multímetre i Generador de formes d'ona.
- CH Key: Selects the channel (for oscilloscope).
- HOR Key: Adjusts horizontal scale/time base (for oscilloscope).
- Clau del sistema: Accedeix a la configuració del sistema.
- Save Key: Saves waveforms or measurement data.
- Tecla de l'interruptor d'alimentació: Encén/apaga el dispositiu.
- Trigger Menu Key (Trig/Δ): Accesses trigger settings (oscilloscope) or relative value function (multimeter).
- Navigation Keys (Up, Down, Left, Right, Enter): S'utilitza per a la navegació del menú i l'ajust de paràmetres.
- Measure/Range Key: Displays measurement menu (oscilloscope) or changes range (multimeter).
- Clau automàtica: 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⊣): Per connectar els cables de prova del multímetre.
- Measured Signal Input Connector (BNC): Per connectar sondes d'oscil·loscopi.
- 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): Per a la càrrega i la connexió a l'ordinador.
- Parèntesis: Integrated stand for desktop use.
3.2 Accessoris inclosos

Figure 3: The HANMATEK HO51 comes with a comprehensive set of accessories for immediate use.
El paquet inclou:
- HANMATEK HO51 3-in-1 Device
- Cable USB
- Adaptador d'alimentació
- Sonda d'oscil·loscopi passiu
- Cables de prova del multímetre
- Signal Generator Output Cable
- Guia d'inici ràpid
- Eina de calibratge
- Maleta de transport
4. Configuració
4.1 Càrrega inicial
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 Engegada/apagada
Manteniu premut el botó Tecla de l'interruptor d'alimentació (located below the Save button) for approximately 2 seconds to turn the device on or off.
4.3 Connecting Probes and Leads
- Sonda d'oscil·loscopi: 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 Compensació de la sonda
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. Modes de funcionament
5.1 Mode d'oscil·loscopi
Premeu el botó 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.
- Configuració automàtica: Premeu el botó Automàtic button for automatic adjustment of vertical scale, time base, and trigger level to display a stable waveform.
- Escala vertical (Volts/Div): Utilitza el Amunt/Avall navigation keys to adjust the vertical sensitivity.
- Base de temps (segons/divisió): Utilitza el Esquerra/Dreta navigation keys to adjust the horizontal time scale.
- Configuració de l'activador: Premeu el botó Trig/Δ key to access trigger options. Use navigation keys to set trigger level, edge (rising/falling), and mode (Auto, Normal, Single).
- Mides: Premeu el botó Measure/Range key to display automatic measurements (e.g., Vpp, Vmax, Vmin, Frequency, Duty Cycle).
- Saving Waveforms: Premeu el botó Desa key to store the current waveform data.
5.2 Mode multímetre
Premeu el botó 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.
- Selecció de la funció: Utilitza el 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 Mesura: Connect test leads to VΩC⊣ and COM. Select AC V or DC V. Connect leads in parallel with the circuit.
- Mesura actual: ADVERTIMENT: 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.
- Resistència/Capacitància/Díode/Continuïtat: Connect test leads to VΩC⊣ and COM. Select the appropriate function. Ensure the circuit is de-energized before testing.
- Interval automàtic: Premeu el botó Automàtic button to enable or disable auto-ranging.
- Conservació de dades: Premeu el botó ▶/‖ key to hold the current measurement on the display.
5.3 Waveform Generator Mode
Premeu el botó 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.
- Tipus de forma d'ona: Use the navigation keys to select the desired waveform (Sine, Square, Ramp, Pulse).
- Ajust de freqüència: Use the navigation keys to set the output frequency.
- AmpAjust d'altitud: Use the navigation keys to set the output amplitude (1Vpp or 2.5Vpp).
- Connexió de sortida: 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. Manteniment
- Neteja: Netegeu el dispositiu amb un suau, damp tela. No utilitzeu netejadors abrasius ni dissolvents.
- Cura de la bateria: 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.
- Emmagatzematge: Guardeu el dispositiu en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes.
- Cura de la sonda: Inspect test leads and probes regularly for any signs of damage. Replace if necessary.
7. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| El dispositiu no s'encén. | Low battery or power switch not pressed correctly. | Charge the device. Press and hold the power switch for 2 seconds. |
| No es mostra cap forma d'ona en mode oscil·loscopi. | Probe not connected, incorrect trigger settings, or signal too small/large. | Check probe connection. Press Automàtic button. Adjust vertical scale and trigger level. |
| Incorrect multimeter readings. | Incorrect function/range selected, faulty test leads, or circuit not de-energized for resistance/capacitance. | Verify function and range. Check test leads. Ensure circuit is off for passive measurements. |
| Waveform generator output is not as expected. | Incorrect frequency/amplitude settings or improper connection. | Verify frequency and amplitude settings. Ensure output cable is correctly connected. |
| El dispositiu es bloqueja o deixa de respondre. | Error temporal de programari. | Premeu i manteniu premut el botó d'engegada durant 10 segons per forçar un reinici. |
8. Especificacions
8.1 Especificacions de l'oscil·loscopi

Figure 9: Detailed specifications for the oscilloscope function of the HO51.
| Característic | Descripció |
|---|---|
| Canal | 1 |
| Ample de banda | 50 MHz |
| Resolució vertical | 8 bits |
| SampMètode ling | Sampling, peak detection |
| Temps real SampTarifa ling | 250 MSa/s |
| Freqüència d'actualització de la forma d'ona | 10,000 wfms/s |
| Precisió de la base de temps | ± 100 ppm |
| Acoblament d'entrada | CC, CA, GND |
| Atenuació de la sonda | 1X, 10X, 100X, 1000X, 10000X |
| Volum d'entrada màximtage | 400V (DC+AC, PK-PK) |
| Mode d'activació | Automàtic, Normal, Individual |
| Tipus de disparador | Front ascendent, vora descendent |
| Mètode d'acoblament | AC/DC |
8.2 Multimeter Specifications

Figure 10: Detailed specifications for the multimeter function of the HO51.
| Característic | Descripció |
|---|---|
| Pantalla digital | 24,000 lectures |
| Tipus de mesura | Voltage, current, resistance, capacitance, on/off, diode |
| Volum d'entrada màximtage | AC: 750V, DC: 1000V |
| Corrent d'entrada màxima | AC: 10A, DC: 10A |
| On/Off Test | √ (<50Ω) |
| Prova de díode | √ (<0-2V) |
| Rang automàtic | √ |
| TRMS | √ |
8.3 Waveform Generator Specifications

Figure 11: Detailed specifications for the waveform generator function of the HO51.
| Característic | Descripció |
|---|---|
| Waveform Frequency (Sine) | 10Hz~100KHz (Stepping in 1-2-5 way) |
| Waveform Frequency (Square) | 10Hz~100KHz (Stepping in 1-2-5 way) |
| Waveform Frequency (Ramp) | 10Hz~100KHz (Stepping in 1-2-5 way) |
| Waveform Frequency (Pulse) | 10Hz~10KHz (Stepping in 1-2-5 way) |
| Ampla latitud | 1Vpp or 2.5Vpp |
8.4 Especificacions generals
- Fabricant: Shenzhen Hanmatek Precision Technology Co., Ltd.
- Número de model: HO51
- Pes de l'article: 410 g
- Dimensions del producte: 23 x 13.5 x 7.5 cm
- Bateries: 1 bateria de polímer de liti (inclosa)
- Tipus de font d'alimentació: Funciona amb bateria
- Color: Blau
- Certificació: CE
9. Garantia i Suport
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 weblloc web. Conserveu el rebut de compra com a comprovant de compra per a reclamacions de garantia.





