1. General Safety Summary
Review the following safety precautions carefully before operating the device to avoid any personal injuries or damages to the device and any products connected to it. To avoid potential hazards, use the device only as specified by this user's guide.
Per evitar incendis o danys personals:
- Connect and Disconnect Properly: No connecteu ni desconnecteu sondes o cables de prova mentre estiguin connectats a un voltage font.
- Connect and Disconnect Properly: Connect the probe output to the measurement device before connecting the probe to the circuit under test. Disconnect the probe input and the probe reference lead from the circuit under test before disconnecting the probe from the measurement device.
- Observeu totes les classificacions de terminals: Per evitar el risc d'incendi o xoc, observeu totes les classificacions i marques del producte. Consulteu el manual del producte per obtenir més informació sobre les classificacions abans de fer connexions al producte.
- Use Proper Probe: To avoid shock hazard, use a properly rated probe for your measurement.
- Eviteu l'exposició de circuits o cables: No toqueu les connexions i els components exposats quan estigui encès.
- No opereu amb sospita de fallades: If suspected damage occurs with the device, have it inspected by qualified service personnel before further operations.
- Provide Proper Ventilation: Refer to the installation instructions for proper ventilation of the device.
- Do not operate in Wet/Damp Condicions.
- Do not operate in an Explosive Atmosphere.
- Mantenir les superfícies del producte netes i seques.
2. Configuració
2.1 Contingut del paquet
The SDS220S Digital Oscilloscope package typically includes the following items. Please verify all components are present upon unboxing:
- OWON SDS220S Digital Oscilloscope Unit
- Cable d'alimentació
- User Manual (PDF available online: OWON SDS220S User Manual PDF)
- Cable USB
- Probes (2x)
- Eina d'ajust de la sonda
- BNC Cable (for SDS210S, 215S, 220S models)

Figura 2.1: Accessoris inclosos
2.2 Product Structure Overview
Familiarize yourself with the main components and controls of the oscilloscope:

Figura 2.2: Disseny del panell frontal i posterior
- Button and Knob Control Area: For adjusting settings and navigating menus.
- Oscilloscope Signal Input Port (CH1, CH2): BNC connectors for probe input.
- Signal Generator Output Port: BNC connector for arbitrary waveform output.
- Compensació de la sonda: 5V/1kHz signal output for probe calibration.
- USB Host Interface: Insert a USB drive to save or retrieve data.
- Interruptor d'alimentació: Encén/apaga el dispositiu.
- Tecles de funció: Botons sensibles al context per a diverses operacions.
- Interfície de dispositiu USB: Used to connect to a PC for data transmission.
- Endoll: Per connectar el cable d'alimentació.
- Foldable Handle & Stand: For portability and convenient viewangle de ing.
- Forats de ventilació: Assegureu-vos que el flux d'aire sigui adequat per a la refrigeració.
2.3 Connexió d'alimentació
Connect the provided power cord to the power socket on the rear panel of the oscilloscope and then to a suitable AC power outlet. Ensure the power switch is in the 'Off' position before connecting the power cord. The device operates within a voltage range of 100V-240V, 50/60Hz.
2.4 Connexió de la sonda
Connect the oscilloscope probes to the CH1 and CH2 input ports. Ensure the probes are securely fastened. For accurate measurements, it is recommended to perform probe compensation before use.
2.5 PC Communication
The SDS220S supports communication with a PC via its USB Device interface. This allows for remote control, data transfer, and secondary development using SCPI and LabVIEW functions. Free computer software and programming development demos are available from OWON.
3. Instruccions de funcionament
3.1 Engegada/apagada
- To power on, press the Power Switch located on the front panel.
- To power off, press the Power Switch again.
3.2 Mostra finalview
The oscilloscope features a 7-inch TFT LCD display with 800*480 pixels resolution. It offers a clear view of all signals and screen information, including a zoom function for detailed signal observation. The device also supports dual theme display to adapt to different lighting conditions for clear visualization.

Figure 3.1: 7-inch TFT LCD Display
3.3 Oscilloscope Functions
The SDS220S is a dual-channel digital oscilloscope with a 200MHz bandwidth and a 1GSa/s real-time sampling rate. It features a 20M record length for capturing long waveforms.
Automatic Waveform Measurements
The device supports 30 types of automatic waveform measurements, covering time values, counts, delay and phase values, amplitude values, and more.

Figure 3.2: Automatic Waveform Measurements and X-Y Mode
Mesura del cursor
The cursor function enables precise measurement of both X-axis (time) and Y-axis (voltage) values of the waveform. It supports all auto-measurement parameters.

Figure 3.3: Cursor Measurement Interface
Save / Recall
You can save and recall various data formats, including waveforms, reference waveforms, CSV files, and images for comparative analysis.

Figure 3.4: Save/Recall Interface
Mode XY
The X-Y mode provides a three-screen display for easy phase and component characteristic testing.
6-digit High-precision Frequency Counter
The oscilloscope's built-in frequency counter accurately measures input signals using CH1 or CH2 as the measurement source with a 6-digit display.
Anàlisi d'espectre FFT
FFT converts time-domain signals into frequency-domain components, helping you measure harmonics, distortion, noise, and vibration in your system.

Figure 3.5: Frequency Counter and FFT Spectrum Analysis
3.4 25MHz Arbitrary Waveform Generator (AWG)
The SDS220S includes a built-in 25MHz Arbitrary Waveform Generator. This feature allows you to generate various waveforms for testing purposes.
- Max output frequency: 25MHz
- Temps real sample rate: 125MSa/s
- Arbitrary waveform length: 8K
- Sortida amplitude: 5 mVpp to 3 Vpp (50Ω)

Figure 3.6: Arbitrary Waveform Generator Output
4. Manteniment
4.1 Neteja
To maintain the performance and longevity of your oscilloscope, keep its surfaces clean and dry. Use a soft, damp cloth for cleaning. Avoid abrasive cleaners or solvents that could damage the casing o pantalla.
4.2 Informació sobre la bateria
The device is powered by an 18650 lithium battery and can be charged via a Type-C port. Ensure the battery is charged regularly for optimal performance and avoid deep discharge.
Video 4.1: OWON HDS120 Handheld Oscilloscope Multimeter (demonstrates features like automatic gear switching for test pens, waveform automatic measurement, dual theme display, 18650 lithium battery, and Type-C charging port, which are relevant to general OWON device operation and maintenance).
5. Solució De Problemes
If you encounter any issues with your OWON SDS220S Digital Oscilloscope, consider the following general troubleshooting steps:
- Sense energia: Ensure the power cord is securely connected and the power outlet is functional. Check the battery charge level if operating on battery power.
- Pantalla sense senyal: Verify that probes are correctly connected to both the oscilloscope and the circuit under test. Check probe settings (e.g., 1X/10X attenuation). Ensure the input signal is within the oscilloscope's measurement range.
- Forma d'ona inestable: Adjust the trigger settings (level, mode, source) to stabilize the waveform. Check for proper grounding.
- Mesures incorrectes: Perform probe compensation. Verify the correct measurement parameters are selected.
- Mal funcionament del dispositiu: If you suspect damage or a serious malfunction, discontinue use and contact qualified service personnel for inspection and repair. Do not attempt to repair the device yourself.
6. Especificacions
The following table outlines the key specifications for the OWON SDS220S Digital Oscilloscope:
| Característica | Specification (SDS220S) |
|---|---|
| Ample de banda | 200 MHz |
| Sampli Rate | 1GSa/S |
| Mode d'adquisició | Normal, Peak Detect, Averaging |
| Acoblament d'entrada | CC, CA, Terra |
| Impedància d'entrada | 1MΩ±2%, in parallel with 20 pF±5 pF |
| Factor d'atenuació de la sonda | 1X, 10X, 100X, 1000X |
| Durada del registre | 20M |
| Horizontal Scale (s/div) | 2 ns/div - 1000 s/div, step by 1 - 2 - 5 |
| Sensibilitat vertical | 2 mV/div - 10 V/div |
| Mesura automàtica | Period, Frequency, Mean, PK-PK, RMS, Max, Min, Top Base, Amplitude, Overshoot, Preshoot, Rise Time, Fall Time, +PulseWidth, -PulseWidth, +Duty Cycle, -Duty Cycle, Delay A→B↑, Delay A→B↓, Cycle RMS, Cursor RMS, Screen Duty, Phase, +PulseCount, -PulseCount, RiseEdgeCnt, FallEdgeCnt, Area, and Cycle Area. |
| Waveform Math | +, -, ×, ÷, FFT |
| Waveform Storage | 16 waveforms |
| Lissajous's Bandwidth | Ample de banda complet |
| Lissajous's Phase Difference | ±3 graus |
| Tipus de disparador | Edge, Video |
| Interfície de comunicació | USB Host and Device |
| Comptador de freqüència | 6 dígits |
| Especificacions del generador de formes d'ona | |
| Formes d'ona estàndard | Sine wave, square wave, ramp wave, pulse wave, arbitrary wave |
| Arbitrary Waveforms | Sinc, exponential rise, exponential decline, Gaussian, more than 160 kinds |
| Sine Frequency | 0.1Hz - 25MHz |
| Square Frequency | 0.1Hz - 10MHz |
| Ramp Freqüència | 0.1Hz - 1MHz |
| Arbitrary Waveform Frequency | 0.1Hz - 5MHz |
| Sampli taxa | 125MSa / s |
| Amplitud (50Ω) | 0.005Vpp ~ 3Vpp |
| DC Offset Range | ±1(3V) (high resistance) |
| Channel Form | 1 |
| Longitud de la forma d'ona | 8K |
| Resolució vertical | 14 bits |
| General | |
| Mostra | 7 inch (800*480) LCD |
| Mida (L x A x P) | 301 mm × 152 mm × 70 mm |
| Pes | Kg1.1kg |
Les especificacions estan subjectes a canvis sense previ avís.
7. Consells d'usuari
- Always ensure your probes are properly calibrated for accurate readings.
- Utilize the 20M record length to capture transient events or long-duration signals for detailed analysis.
- Experiment with the 30 automatic measurement types to quickly characterize your waveforms.
- When using the arbitrary waveform generator, ensure the output amplitude and frequency are suitable for the circuit under test.
- Avançanttage of the USB host interface to save screenshots or waveform data for documentation and further analysis on a computer.
- For remote control and advanced analysis, explore the SCPI commands and LabVIEW functions provided by OWON.
8. Garantia i Suport
For detailed warranty information, technical support, and service inquiries, please refer to the official OWON documentation or contact your local distributor. The comprehensive user manual in PDF format can be found at: OWON SDS220S User Manual PDF.





