1. Увод
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. Безбедносне информације
Да бисте спречили струјни удар или повреде, и да бисте избегли оштећење осцилоскопа или повезане опреме, придржавајте се следећих мера предострожности:
- Правилно уземљење: 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.
- Обратите пажњу на све оцене терминала: 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.
- Немојте радити са сумњивим кваровима: If you suspect damage to the instrument, have it inspected by qualified service personnel.
- Одржавајте суве услове: Do not operate the instrument in wet or damp условима.
- Operate in a Well-Ventilated Area: Обезбедите одговарајућу вентилацију како бисте спречили прегревање.
3. Производ је готовview
3.1 Кључне карактеристике
- 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
- ФФТ анализа спектра
- SCPI and LabVIEW support for remote control and secondary development
- USB Device interface for PC communication
- 16 Waveform Storage locations
- Фрекуенци Цоунтер
- Compact and lightweight design (1.1KG / 2.42 lbs)
3.2 Компоненте предњег панела

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 Компоненте задње плоче

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 Voltagе Пробе
The SDS220S includes an extra P4250 High Voltage Probe. This probe is designed for high voltage measurements and features:
- Пропусни опсег: 250МХз
- Attenuation Ratio: 100:1
- Улазни отпор: 100МΩ
- Мак Инпут Волtage: 2KV Working Voltagе (Вп-п)

Figure 3.3: The P4250 High Voltage Probe, an included accessory, with its detailed specifications table.
4. Подешавање
4.1 Распакивање и преглед
- Carefully remove the oscilloscope and all accessories from the packaging.
- Прегледајте уређај да ли има знакова оштећења током транспорта. Уколико се пронађу оштећења, одмах контактирајте свог добављача.
- Проверите да ли су присутне све ставке наведене на листи за паковање.
4.2 Прикључак за напајање
- 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 matches the requirements specified on the device label.
4.3 Почетно укључивање
- 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 Повезивање сонде и компензација
- 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. Упутство за употребу
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.
- Вертикална скала (волти/подела): Користите Вертицал knob to adjust the vertical sensitivity, changing the voltage scale per division on the display.
- Вертикални положај: Користите Положај knob in the Vertical section to move the waveform up or down on the screen.
- Хоризонтална скала (Време/Подељак): Користите Хоризонтално knob to adjust the time base, changing the time scale per division.
- Хоризонтални положај: Користите Положај knob in the Horizontal section to shift the waveform left or right.
- Покретање: Тхе Триггер section controls when the oscilloscope starts acquiring data. Adjust the trigger level to stabilize the waveform. The SDS220S supports Edge and Video trigger types.
- Аутоматска мерења: Притисните тастер Мера 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.
- Повежите излаз: Connect the signal generator output port to the desired input of your circuit or to an oscilloscope channel for monitoring.
- Изаберите таласни облик: 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.
- Прилагоди параметре: 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 Напредне функције
- FFT Spectrum Analysis: Притисните тастер Матх button and select FFT to analyze the frequency components of a signal.
- XY режим: 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.
- Повезивање са рачунаром: 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 софтвера.
6. Одржавање
6.1 Чишћење уређаја
To maintain the performance and appearance of your oscilloscope:
- Искључите кабл за напајање пре чишћења.
- Користите меку крпу дampened with a mild detergent solution to clean the exterior surfaces. Do not use abrasive cleaners or solvents.
- За екран користите меку крпу која не оставља влакна, посебно дизајнирану за екране.
- Ensure no liquid enters the device through ventilation holes or ports.
6.2 Нега сонде
- 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.
КСНУМКС. Решавање проблема
Овај одељак пружа решења за уобичајене проблеме на које можете наићи.
| Проблем | Могући узрок | Решење |
|---|---|---|
| Нема струје | Power cord not connected; Power outlet faulty; Device fuse blown | Проверите прикључак кабла за напајање; Тестирајте утичницу; Контактирајте сервис за замену осигурача. |
| Није приказан таласни облик | 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. |
| Изобличен таласни облик | 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 ampподешавања осветљења. |
8. Спецификације
8.1 Параметри осцилоскопа
| Параметар | Спецификација |
|---|---|
| Аналог Бандвидтх | 200МХз |
| Канали | 2 |
| Sampлинг Рате | 1 Гса/с |
| Max Record Length | 20М |
| Инпут Цоуплинг | DC, AC, уземљење |
| Vertical Sensitivity Range | 2 mV/див ~ 10 V/див |
| Вертикална резолуција | 8 bits (2 Channels Simultaneously) |
| Складиштење таласних облика | 16 Таласни облици |
| Тип окидача | Edge, Video |
| Тиме Басе Ранге | 2ns/div ~ 1000s/div, Step by 1-2-5 |
| Waveform Math | +, -, ×, ÷, FFT |
| Инпут Импеданце | 1MΩ±2%, In Parallel with 20 pF±5 pF |
| Начини скенирања | Normal, Peakdetect, Averaging |
| Комуникациони интерфејс | USB хост и уређај |
8.2 Waveform Generator Parameters
| Параметар | Спецификација |
|---|---|
| Max Frequency Output | 25МХз |
| Канали | 1CH AWG |
| Sampле Рате | 125МСа / с |
| Arbitrary Waveform Length | 8K |
| Излаз Ampлитуде | 5mVpp to 3 Vpp (50Ω) |
| Вертикална резолуција | 14 бита |
| Стандард Вавеформс | Синус, квадрат, Рamp Wave, Pulse Wave, Arbitrary Wave |
| Arbitrary Waveforms | Sinc, Exponential Rise, Exponential Decline, Gaussian, more than 160 kinds |
| ДЦ Оффсет | ±(3V) (High Resistance) |
8.3 Опште спецификације
| Параметар | Спецификација |
|---|---|
| Дисплаи | 7-inch TFT LCD (800*480 pixels) |
| Димензије производа | 11.85 к 2.76 к 6 инча (301 к 70 к 152 мм) |
| Тежина артикла | 2.42 фунти (1.1 кг) |
| Радна температура | -10°Ц ~ 55°Ц |
| Радна влажност | ≤90% (41°C) to ≤60% (50°C) |
| Оперативна висина | 3000м |

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. Гаранција и подршка
9.1 Информације о гаранцији
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 Техничка подршка
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.