1. Introdución
The OWON HDS1021MN is a versatile handheld device combining the functionalities of a digital storage oscilloscope and a digital multimeter. It is designed for engineers, technicians, and hobbyists requiring portable and accurate measurement capabilities. This manual provides essential information for the safe and effective operation of your device.
Características principais:
- Modelo: HDS1021MN
- Sample Rate (real time): 500 MS/s
- Ancho de banda: 20 MHz
- Horizontal Scale (s/div): 5ns/div to 100s/div, step by 1-2.5-5
- Canle: Solteiro
- Waveform Record & Replay
- FFT Functions
- 3.7 inch color TFT display (640 × 480 pixels)
2. Información de seguridade
Before using the OWON HDS1021MN, please read and understand all safety instructions. Failure to follow these instructions may result in electric shock, fire, or damage to the device or other equipment.
- Seguridade xeral: Always operate the device within its specified voltage and current limits. Do not use the device if it appears damaged or is not operating correctly.
- Fonte de alimentación: Use only the specified power adapter and battery. Ensure the power source matches the device's requirements.
- Probes and Leads: Use only probes and test leads rated for the voltage and current being measured. Inspect probes and leads for damage before each use.
- Ambiente: Non utilice o dispositivo en lugares húmidos ou damp conditions, or in explosive atmospheres. Keep the device away from strong electromagnetic fields.
- Servizo: Refer all servicing to qualified service personnel. Do not attempt to open or repair the device yourself.
3. Compoñentes do produto
The standard package for the OWON HDS1021MN typically includes the following items:
- OWON HDS1021MN Handheld Digital Storage Oscilloscope and Digital Multimeter Unit
- Oscilloscope Probe (1X/10X)
- Cables de proba do multímetro
- Adaptador de alimentación
- Cable USB
- Manual de usuario (este documento)
- Soft Carrying Case (may vary by region/retailer)

Fronte view of the OWON HDS1021MN, showing the display screen, control buttons, and input jacks.
4. Configuración
4.1 Instalación e carga da batería
- Localiza o compartimento da batería na parte traseira do dispositivo.
- Insert the provided Li-ion battery (7.4V) into the compartment, ensuring correct polarity.
- Pecha a tapa do compartimento da batería de forma segura.
- Connect the power adapter to the device's charging port and plug it into a suitable AC outlet (100V-240V AC, 50/60Hz). The battery indicator will show charging status.
- Allow the device to charge fully before initial use. A full charge provides approximately 6 hours of operation.
4.2 Connecting Probes and Test Leads
- Oscilloscope Probe: For oscilloscope functions, connect the BNC connector of the oscilloscope probe to the BNC input port on the device. Ensure the probe's attenuation setting (e.g., 1X or 10X) matches the setting on the oscilloscope menu.
- Cables de proba do multímetro: For multimeter functions, insert the red test lead into the VΩmA input jack and the black test lead into the COM input jack. For high current measurements (e.g., 20A), use the dedicated current input jack if available and switch the function accordingly.
5. Instrucións de funcionamento
5.1 Encendido/apagado
Press and hold the power button until the display illuminates to turn on the device. To power off, press and hold the power button again until the display shuts down.
5.2 Oscilloscope Operation
- Select Oscilloscope Mode: Use the function selection buttons to switch to oscilloscope mode.
- Conectar a sonda: Attach the oscilloscope probe to the circuit under test. Ensure the ground clip is connected to the circuit's ground.
- Adjust Vertical Scale (Volts/Div): Use the vertical control knob or buttons to adjust the voltage sensitivity per division, matching the ampamplitude do sinal de entrada.
- Adjust Horizontal Scale (Time/Div): Use the horizontal control knob or buttons to adjust the time base per division, suitable for viewing the signal's frequency.
- Set Trigger: Use the trigger controls to stabilize the waveform. Common trigger types include Edge, Video, and Alternate. Adjust the trigger level to a point on the waveform to ensure a stable display.
- Acquisition Mode: Seleccione Sample, Peak Detect, or Average mode based on measurement needs.
- Waveform Record & Replay: Access the menu to enable waveform recording. Follow on-screen prompts to save and replay captured waveforms.
- FFT Function: Activate the FFT (Fast Fourier Transform) function from the menu to analyze the frequency components of the signal.
5.3 Multimeter Operation
- Select Multimeter Mode: Use the function selection buttons to switch to multimeter mode.
- Select Measurement Function: Rotate the rotary switch or press function buttons to select the desired measurement (e.g., VDC, VAC, Current DC, Current AC, Resistance, Diode, Continuity).
- Conectar os cables de proba: Connect the red and black test leads to the circuit or component being measured according to the selected function.
- Ler a medición: The measurement value will be displayed on the screen.
- Proba de diodo: Connect leads across the diode. The forward voltagMostrarase a gota.
- Proba de continuidade: Connect leads across the circuit. An audible beep indicates continuity (<50Ω).
6. Mantemento
6.1 Limpeza
Para limpar o dispositivo, use un pano suave dampened with mild detergent and water. Do not use abrasive cleaners or solvents. Ensure the device is powered off and disconnected from all power sources before cleaning.
6.2 Coidado coa batería
- Cargue a batería regularmente, mesmo se o dispositivo non se usa con frecuencia, para manter o estado da batería.
- Evite descargar completamente a batería con frecuencia.
- If storing the device for an extended period, charge the battery to approximately 50% and store in a cool, dry place.
6.3 Almacenamento
Store the device in a dry, dust-free environment, away from direct sunlight and extreme temperatures. Use the provided carrying case to protect it from physical damage.
7 Solución de problemas
This section addresses common issues you might encounter with your OWON HDS1021MN.
| Problema | Causa posible | Solución |
|---|---|---|
| O dispositivo non se acende | Low or dead battery; Power adapter not connected; Device fault | Charge the battery; Connect power adapter; Contact support if issue persists |
| No waveform displayed (Oscilloscope) | Probe not connected; Incorrect vertical/horizontal scale; Incorrect trigger settings; No input signal | Check probe connection; Adjust Volts/Div and Time/Div; Adjust trigger level/mode; Verify signal source |
| Incorrect multimeter reading | Incorrect function selected; Test leads improperly connected; Damaged test leads; Out of range measurement | Select correct function; Ensure leads are in correct jacks; Replace damaged leads; Check measurement range |
| A pantalla está escura ou parpadea | Low battery; Environmental factors | Charge battery; Operate in recommended temperature range |
8. Especificacións
Detailed technical specifications for the OWON HDS1021MN.
Especificacións do osciloscopio:
- Ancho de banda: 20 MHz
- Sample Rate (real time): 500 MS/s
- Horizontal Scale (s/div): 5ns/div to 100s/div, step by 1-2.5-5
- Rise Time (at input, typical): ≤ 17.5 ns
- Visualización: 3.7 inch color TFT panel (640 × 480 pixels, 65535 colors)
- Canle: Solteiro
- Impedancia de entrada: 1MΩ ± 2%, in parallel with 20pF ± 5pF
- Duración do rexistro: max 6K points on each channel
- Interpolation: sin (x) / x
- Probe Attenuation Factor: 1X, 10X, 100X, 1000X
- Acoplamento de entrada: DC, AC, and GND
- DC Accuracy (average): average >16 : ±(5% reading + 0.05div) for ΔV
- Sensibilidade vertical: 5mV/div to 5V/div (at input)
- Vertical Resolution (A/D): 8 bits (2 canles á vez)
- Vol. de entrada máxtage: 400V (PK - PK) (DC + AC, PK - PK, 1MΩ input impedance, probe attenuation 10:1), CAT II
- Tipo de disparador: Edge, Video, Alternate
- Modo de disparo: Automático, normal, único
- Nivel de activación: ±6 divisions from screen center
- Acquisition Mode: Sample, Peak Detect, and Average
- Precisión da ganancia de CC: ± 3 %
- Medición automática: Vpp, Vavg, Vrms, Freq, Period, Vmax, Vmin, Vtop, Vbase, Vamp, Overshoot, Pre-shoot, Rise Time, Fall Time, +Width, -Width, +Duty, -Duty, Delay A→B, Delay A→B
- Waveform Math: +, -, ×, ÷, invert, FFT
- Almacenamento de formas de onda: 4 waveforms
- Lissajous Figure: Bandwidth full bandwidth, Phase Difference ±3 degrees
Especificacións do multímetro:
- Full Scale Reading: 3 ¾ digit (max 4000-count)
- Diodo: 0 V-1.5 V
- Impedancia de entrada: 10 MΩ
- On / Off Test: <50Ω (± 30Ω) beeping
- Voltage VDC: 400mV, 4V, 40V, 400V, 1000V : ±(1% ± 1 digit); max input : DC 1000V
- Voltage VAC: 4V, 40V, 400V : ±(1% ± 3 digits), 750V : ±(2% ± 3 digits); Frequency : 40Hz - 400Hz; max input : AC 750V (virtual value)
- Current DC: 40mA, 400mA : ±(1.5% ± 1 digit), 20A : ±(3% ± 3 digits)
- Current AC: 40mA : ±(1.5% ± 3 digits), 400mA : ±(2% ± 1 digit), 20A : ±(5% ± 3 digits)
Especificacións xerais:
- Interface de comunicación: USB
- Fonte de alimentación: 100 V-240 V CA, 50/60 Hz
- Batería Li-ion: 7.4V, 6 hours operation
- Dimensións (ancho × alto × fondo): 180 × 115 × 40 (mm)
- Cor: Laranxa
9. Garantía e soporte
OWON products are manufactured to high quality standards. For warranty information, please refer to the warranty card included with your product or visit the official OWON website. For technical support, troubleshooting assistance beyond this manual, or service inquiries, please contact OWON customer support through their official channels.
Fabricante: OWON