1. Introducción
The OWON SDS220S-200MHz is a high-performance dual-channel desktop oscilloscope integrated with a 25MHz waveform generator. This device features a 200MHz bandwidth, 1GSa/s sample rate, and a 20M record length, making it suitable for various electronic measurement and analysis tasks. It supports 30 automatic waveform measurements, FFT Spectrum Analysis, and PC communication via USB for remote control and secondary development using SCPI and LabVIEW. This manual provides essential information for the safe and effective operation of your SDS220S-200MHz oscilloscope.

Figure 1.1: OWON SDS220S-200MHz Multifunctional Digital Oscilloscope overview, highlighting its 2 channels, 20M record length, 1GSa/s real-time sample rate, and 25MHz waveform generator.
2. Información de seguridad
Para evitar descargas eléctricas o lesiones personales y evitar daños al osciloscopio o al equipo conectado, observe las siguientes precauciones de seguridad:
- Puesta a tierra adecuada: Ensure the oscilloscope is properly grounded. The instrument is grounded through the power cord's grounding conductor. To avoid electric shock, the grounding conductor must be connected to earth ground.
- Connect and Disconnect Properly: Connect the probe output to the oscilloscope input before connecting the probe to the circuit under test. Disconnect the probe from the circuit under test before disconnecting it from the oscilloscope.
- Observe todas las clasificaciones de terminales: To prevent fire or shock hazard, observe all ratings and markings on the instrument. Consult the product manual for more information about ratings before making connections to the instrument.
- Use Proper Probes: Use only probes supplied with the instrument or recommended by the manufacturer. Ensure probes are rated for the voltage and current being measured. The included P4250 High Voltage Probe has a 100:1 attenuation ratio and is rated for 2KV Working Voltage (Vp-p).
- Avoid Exposed Circuitry: Do not touch exposed connections or components when power is present.
- No operar en caso de sospecha de fallas: If you suspect damage to the instrument, have it inspected by qualified service personnel.
- Mantenga condiciones secas: No utilice el instrumento en lugares húmedos oamp condiciones.
- Operate in a Well-Ventilated Area: Asegúrese de que haya una ventilación adecuada para evitar el sobrecalentamiento.
3. Producto terminadoview
3.1 Características principales
- 200MHz Bandwidth, Dual Channel
- 1GSa/s Sample Rate (Dual-channel Independent)
- 20M Record Length
- Built-in 25MHz Waveform Generator (1CH AWG, 125MSa/s Real-time Sample Rate, 8K Arbitrary waveform length)
- 7-inch TFT LCD (800*480 pixels resolution)
- Support for 30 Automatic Waveform Measurements
- Análisis del espectro FFT
- SCPI and LabVIEW support for remote control and secondary development
- USB Device interface for PC communication
- 16 Waveform Storage locations
- Contador de frecuencia
- Compact and lightweight design (1.1KG / 2.42 lbs)
3.2 Componentes del panel frontal

Figure 3.1: Front panel of the SDS220S, showing the display, button and knob control area, power switch, function keys, probe compensation output, oscilloscope signal input ports (CH1, CH2), and signal generator output port.
3.3 Componentes del panel trasero

Figure 3.2: Rear panel of the SDS220S, illustrating the foldable handle, ventilation holes, power socket, USB Device interface for PC connection, and the integrated stand.
3.4 Included Accessories: P4250 High Voltage Sonda
The SDS220S includes an extra P4250 High Voltage Probe. This probe is designed for high voltage measurements and features:
- Ancho de banda: 250 MHz
- Attenuation Ratio: 100:1
- Resistencia de entrada: 100 MΩ
- Vol. De entrada máx.tage: 2KV Working Voltage (Vp-p)

Figure 3.3: The P4250 High Voltage Probe, an included accessory, with its detailed specifications table.
4. Configuración
4.1 Desembalaje e inspección
- Retire con cuidado el osciloscopio y todos los accesorios del embalaje.
- Inspect the device for any signs of damage during transit. If damage is found, contact your supplier immediately.
- Verifique que todos los artículos enumerados en la lista de embalaje estén presentes.
4.2 Conexión de alimentación
- Conecte el cable de alimentación provisto a la toma de corriente en el panel trasero del osciloscopio.
- Plug the other end of the power cord into a grounded AC power outlet. Ensure the power supply voltage coincide con los requisitos especificados en la etiqueta del dispositivo.
4.3 Encendido inicial
- Presione el interruptor de encendido ubicado en el panel frontal para encender el osciloscopio.
- The device will perform a self-test and display the startup screen.
4.4 Conexión y compensación de la sonda
- Connect the BNC connector of the oscilloscope probe to one of the input channels (CH1 or CH2) on the front panel.
- Attach the probe tip to the probe compensation output (5V/1kHz signal) on the front panel.
- Adjust the compensation trimmer on the probe until a flat-top square wave is displayed on the screen. This ensures accurate measurements.
5. Instrucciones de funcionamiento
5.1 Basic Oscilloscope Operation
The SDS220S allows for precise visualization and analysis of electrical signals.

Figure 5.1: The SDS220S oscilloscope in operation, displaying a waveform on its screen while connected to a circuit.
- Connecting to a Circuit: Connect the compensated probe to the desired test point on your circuit.
- Escala vertical (voltios/división): Utilice el Vertical knob to adjust the vertical sensitivity, changing the voltage scale per division on the display.
- Posición vertical: Utilice el Posición knob in the Vertical section to move the waveform up or down on the screen.
- Escala horizontal (tiempo/división): Utilice el Horizontal knob to adjust the time base, changing the time scale per division.
- Posición horizontal: Utilice el Posición knob in the Horizontal section to shift the waveform left or right.
- Activación: El Desencadenar section controls when the oscilloscope starts acquiring data. Adjust the trigger level to stabilize the waveform. The SDS220S supports Edge and Video trigger types.
- Mediciones automáticas: Presione el Medida button to access the automatic measurement menu. The SDS220S supports 30 types of automatic measurements (e.g., Period, Frequency, Vpp, Vmax, Vmin, Rise Time, Fall Time).

Figure 5.2: The SDS220S displaying the menu for 30 automatic waveform measurements, allowing for detailed signal analysis.
5.2 Funcionamiento del generador de formas de onda
The built-in 25MHz waveform generator can produce various standard and arbitrary waveforms.

Figure 5.3: The SDS220S functioning as both an oscilloscope (left) and a waveform generator (right), demonstrating its dual capabilities.
- Conectar salida: Connect the signal generator output port to the desired input of your circuit or to an oscilloscope channel for monitoring.
- Seleccionar forma de onda: Use the function keys to select the desired waveform type (Sine, Square, Ramp, Pulse, Arbitrary). The SDS220S offers 5 standard waveforms and over 160 kinds of arbitrary waveforms.
- Ajustar parámetros: Use the control knobs and menu options to set the frequency (up to 25MHz), amplitude (5mVpp to 3Vpp), and DC offset of the generated waveform.
5.3 Funciones avanzadas
- Análisis del espectro FFT: Presione el Matemáticas button and select FFT to analyze the frequency components of a signal.
- Modo XY: This mode is used to display the relationship between two signals, often for phase comparison.
- Guardar/Recuperar: The oscilloscope allows saving and recalling up to 16 waveforms for later analysis or comparison.
- Conectividad de la computadora: Connect the oscilloscope to a PC via the USB Device interface for remote control and data transfer. The device supports SCPI commands and LabVIEW for custom applications.

Figure 5.4: The SDS220S connected to a laptop via USB, demonstrating its capability for remote control and secondary development using SCPI and LabVIEW software.
6. Mantenimiento
6.1 Limpieza del dispositivo
To maintain the performance and appearance of your oscilloscope:
- Desconecte el cable de alimentación antes de limpiar.
- Utilice un paño suave.ampened with a mild detergent solution to clean the exterior surfaces. Do not use abrasive cleaners or solvents.
- Para la pantalla, utilice un paño suave y sin pelusa diseñado específicamente para pantallas.
- Ensure no liquid enters the device through ventilation holes or ports.
6.2 Cuidado de la sonda
- Store probes carefully to prevent damage to the tips or cables.
- Regularly check probe cables for cuts or damage. Replace damaged probes immediately.
- Recalibrate probes periodically, especially after significant temperature changes or if measurements appear inaccurate.
7. Solución de problemas
Esta sección proporciona soluciones a problemas comunes que puede encontrar.
| Problema | Posible causa | Solución |
|---|---|---|
| Sin poder | Power cord not connected; Power outlet faulty; Device fuse blown | Verifique la conexión del cable de alimentación; pruebe la toma de corriente; comuníquese con el servicio técnico para reemplazar el fusible. |
| No se muestra ninguna forma de onda | Probe not connected; Input signal too small/large; Trigger settings incorrect; Channel turned off | Ensure probe is connected to input and circuit; Adjust Vertical Scale (Volts/Div); Adjust trigger level and mode; Ensure channel is enabled. |
| forma de onda distorsionada | Probe compensation incorrect; Probe bandwidth insufficient; Signal integrity issues | Perform probe compensation; Use a probe with appropriate bandwidth (e.g., P4250 for high frequency); Check signal source. |
| Waveform unstable | Trigger level or mode incorrect; Noise in signal | Adjust trigger level and mode; Use averaging mode to reduce noise. |
| Waveform generator output not working | Output cable not connected; Output enabled setting incorrect; Parameters set to zero | Connect output cable; Ensure waveform generator output is enabled in menu; Check frequency and ampajustes de lititud. |
8. Especificaciones
8.1 Parámetros del osciloscopio
| Parámetro | Especificación |
|---|---|
| Ancho de banda analógico | 200 MHz |
| Canales | 2 |
| Samptasa de ling | 1 G Sa/s |
| Max Record Length | 20 millones |
| Acoplamiento de entrada | CC, CA, Tierra |
| Rango de sensibilidad vertical | 2 mV/div ~ 10 V/div |
| Resolución vertical | 8 bits (2 Channels Simultaneously) |
| Almacenamiento de formas de onda | 16 Formas de onda |
| Tipo de disparador | Edge, Vídeo |
| Rango de base de tiempo | 2ns/div ~ 1000s/div, Step by 1-2-5 |
| Matemáticas de forma de onda | +, -, ×, ÷, FFT |
| Impedancia de entrada | 1MΩ±2%, In Parallel with 20 pF±5 pF |
| Modos de escaneo | Normal, Peakdetect, Averaging |
| Interfaz de comunicación | Host y dispositivo USB |
8.2 Waveform Generator Parameters
| Parámetro | Especificación |
|---|---|
| Max Frequency Output | 25 MHz |
| Canales | 1CH AWG |
| Samptasa | 125MSa / s |
| Arbitrary Waveform Length | 8K |
| Producción Amplatitud | 5mVpp to 3 Vpp (50Ω) |
| Resolución vertical | 14 bits |
| Formas de onda estándar | Seno, cuadrado, Ramp Wave, Pulse Wave, Arbitrary Wave |
| Formas de onda arbitrarias | Sinc, Exponential Rise, Exponential Decline, Gaussian, more than 160 kinds |
| Compensación de CC | ±(3V) (High Resistance) |
8.3 Especificaciones generales
| Parámetro | Especificación |
|---|---|
| Mostrar | 7-inch TFT LCD (800*480 pixels) |
| Dimensiones del producto | 11.85 x 2.76 x 6 pulgadas (301 x 70 x 152 mm) |
| Peso del artículo | 2.42 libras (1.1 kg) |
| Temperatura de funcionamiento | -10°C ~ 55°C |
| Humedad de funcionamiento | ≤90% (41°C) to ≤60% (50°C) |
| Altitud de operación | 3000 m |

Figure 8.1: A comprehensive table detailing the specifications for both the oscilloscope and waveform generator functions of the SDS220S.

Figure 8.2: The physical dimensions of the OWON SDS220S, highlighting its compact and ultra-thin body design.
9. Garantía y soporte
9.1 Información de garantía
OWON products are manufactured under strict quality standards. This product is covered by a limited warranty against defects in materials and workmanship. The specific warranty period and terms may vary by region and retailer. Please retain your proof of purchase for warranty claims.
9.2 Soporte técnico
For technical assistance, troubleshooting, or service inquiries, please contact your local OWON distributor or refer to the official OWON website for support resources and contact information. When contacting support, please have your product model (SDS220S) and serial number available.