1. Ifihan
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. Alaye Aabo
To prevent electric shock or personal injury, and to avoid damage to the oscilloscope or connected equipment, observe the following safety precautions:
- Ilẹ-ilẹ ti o tọ: 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.
- Ṣakiyesi Gbogbo Awọn idiyele Ipari: 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.
- Maṣe Ṣiṣẹ pẹlu Awọn Ikuna Ifura: If you suspect damage to the instrument, have it inspected by qualified service personnel.
- Ṣetọju Awọn ipo gbigbẹ: Má ṣe lo ohun èlò náà ní ibi tí omi tàbí ibi tí kò rọ̀.amp awọn ipo.
- Operate in a Well-Ventilated Area: Rii daju pe fentilesonu to dara lati ṣe idiwọ igbona.
3. Ọja Ipariview
3.1 Key Awọn ẹya ara ẹrọ
- 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
- FFT julọ.Oniranran onínọmbà
- SCPI and LabVIEW support for remote control and secondary development
- USB Device interface for PC communication
- 16 Waveform Storage locations
- Igbohunsafẹfẹ Counter
- Compact and lightweight design (1.1KG / 2.42 lbs)
3.2 Iwaju Panel irinše

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 Ru Panel irinše

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 Iwadii
The SDS220S includes an extra P4250 High Voltage Probe. This probe is designed for high voltage measurements and features:
- Bandiwidi: 250MHz
- Attenuation Ratio: 100:1
- Atako igbewọle: 100MΩ
- Iwọn titẹ sii Voltage: 2KV Working Voltage (Vp-p)

Figure 3.3: The P4250 High Voltage Probe, an included accessory, with its detailed specifications table.
4. Eto
4.1 Unpacking ati ayewo
- Carefully remove the oscilloscope and all accessories from the packaging.
- Inspect the device for any signs of damage during transit. If damage is found, contact your supplier immediately.
- Verify that all items listed in the packing list are present.
4.2 Asopọ agbara
- Connect the provided power cord to the power socket on the rear panel of the oscilloscope.
- Plug the other end of the power cord into a grounded AC power outlet. Ensure the power supply voltage ibaamu awọn ibeere pato lori aami ẹrọ.
4.3 Ibẹrẹ Agbara-On
- Press the power switch located on the front panel to turn on the oscilloscope.
- The device will perform a self-test and display the startup screen.
4.4 Probe Connection and Compensation
- 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. Awọn ilana Iṣiṣẹ
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.
- Vertical Scale (Volts/Div): Lo awọn Inaro knob to adjust the vertical sensitivity, changing the voltage scale per division on the display.
- Ipo inaro: Lo awọn Ipo knob in the Vertical section to move the waveform up or down on the screen.
- Horizontal Scale (Time/Div): Lo awọn Petele knob to adjust the time base, changing the time scale per division.
- Ipò Pẹtẹpẹ́: Lo awọn Ipo knob in the Horizontal section to shift the waveform left or right.
- Nfa: Awọn Nfa section controls when the oscilloscope starts acquiring data. Adjust the trigger level to stabilize the waveform. The SDS220S supports Edge and Video trigger types.
- Awọn wiwọn Aifọwọyi: Tẹ awọn Iwọn 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 Waveform Generator Operation
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.
- Ìjáde Sopọ̀: Connect the signal generator output port to the desired input of your circuit or to an oscilloscope channel for monitoring.
- Select Waveform: 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.
- Ṣatunṣe Awọn paramita: 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 To ti ni ilọsiwaju Awọn ẹya ara ẹrọ
- FFT Spectrum Analysis: Tẹ awọn Iṣiro button and select FFT to analyze the frequency components of a signal.
- Ipo XY: This mode is used to display the relationship between two signals, often for phase comparison.
- Save/Recall: The oscilloscope allows saving and recalling up to 16 waveforms for later analysis or comparison.
- Asopọmọra PC: 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. Itọju
6.1 Ninu ẹrọ naa
To maintain the performance and appearance of your oscilloscope:
- Ge asopọ okun agbara ṣaaju ṣiṣe mimọ.
- Lo asọ asọ dampened with a mild detergent solution to clean the exterior surfaces. Do not use abrasive cleaners or solvents.
- Fún ìfihàn náà, lo aṣọ rírọ̀ tí kò ní àwọ̀ tí a ṣe pàtó fún àwọn ìbòjú.
- Ensure no liquid enters the device through ventilation holes or ports.
6.2 Ìtọ́jú Ìwádìí
- 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. Laasigbotitusita
Abala yii n pese awọn ojutu si awọn ọran ti o wọpọ ti o le ba pade.
| Isoro | Owun to le Fa | Ojutu |
|---|---|---|
| Ko si agbara | Power cord not connected; Power outlet faulty; Device fuse blown | Ṣàyẹ̀wò ìsopọ̀ okùn agbára; Dán ìta agbára wò; Iṣẹ́ ìbánisọ̀rọ̀ fún ìyípadà fiusi. |
| Kò sí ìgbì ìgbì tí a fi hàn | 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. |
| Fọọmu igbi ti o daru | 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 amplitude eto. |
8. Awọn pato
8.1 Oscilloscope Parameters
| Paramita | Sipesifikesonu |
|---|---|
| Bandiwidi afọwọṣe | 200MHz |
| Awọn ikanni | 2 |
| SampOṣuwọn ling | 1Gsa/s |
| Max Record Length | 20M |
| Input Isopọmọra | DC, AC, Ground |
| Ibiti Ìmọ́lẹ̀ Inaro | 2 mV/div ~ 10 V/div |
| Ipinnu Inaro | 8 bits (2 Channels Simultaneously) |
| Waveform Storage | 16 Waveforms |
| Orisi okunfa | Edge, Video |
| Time Mimọ Range | 2ns/div ~ 1000s/div, Step by 1-2-5 |
| Waveform Math | +, -, ×, ÷, FFT |
| Input Impedance | 1MΩ±2%, In Parallel with 20 pF±5 pF |
| Awọn Ipo ọlọjẹ | Normal, Peakdetect, Averaging |
| Ibaraẹnisọrọ Interface | USB Gbalejo ati Device |
8.2 Waveform Generator Parameters
| Paramita | Sipesifikesonu |
|---|---|
| Max Frequency Output | 25MHz |
| Awọn ikanni | 1CH AWG |
| Sample Oṣuwọn | 125Ma/s |
| Arbitrary Waveform Length | 8K |
| Abajade Amplitude | 5mVpp to 3 Vpp (50Ω) |
| Ipinnu Inaro | 14 die-die |
| Standard Waveforms | Sine, Square, Ramp Wave, Pulse Wave, Arbitrary Wave |
| Arbitrary Waveforms | Sinc, Exponential Rise, Exponential Decline, Gaussian, more than 160 kinds |
| DC aiṣedeede | ±(3V) (High Resistance) |
8.3 Gbogbogbo Awọn alaye
| Paramita | Sipesifikesonu |
|---|---|
| Ifihan | 7-inch TFT LCD (800*480 pixels) |
| Ọja Mefa | 11.85 x 2.76 x 6 inches (301 x 70 x 152 mm) |
| Iwọn Nkan | 2.42 pounds (1.1 KG) |
| Awọn iwọn otutu ti nṣiṣẹ | -10°C ~ 55°C |
| Ọriniinitutu ti nṣiṣẹ | ≤90% (41°C) to ≤60% (50°C) |
| Giga iṣẹ | 3000m |

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. Atilẹyin ọja ati Support
9.1 atilẹyin ọja Alaye
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 Imọ Support
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.




