1. Úvod
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. Bezpečnostné informácie
To prevent electric shock or personal injury, and to avoid damage to the oscilloscope or connected equipment, observe the following safety precautions:
- Správne uzemnenie: 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.
- Dodržujte všetky hodnotenia terminálov: 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.
- Neprevádzkujte s podozrením na poruchy: If you suspect damage to the instrument, have it inspected by qualified service personnel.
- Udržujte suché podmienky: Do not operate the instrument in wet or damp podmienky.
- Operate in a Well-Ventilated Area: Zabezpečte správne vetranie, aby ste zabránili prehriatiu.
3. Produkt skončilview
3.1 Kľúčové vlastnosti
- 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 spektrálna analýza
- SCPI and LabVIEW support for remote control and secondary development
- USB Device interface for PC communication
- 16 Waveform Storage locations
- Frekvenčný čítač
- Compact and lightweight design (1.1KG / 2.42 lbs)
3.2 Komponenty predného panela

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 Komponenty zadného panela

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:
- Šírka pásma: 250 MHz
- Pomer útlmu: 100:1
- Vstupný odpor: 100MΩ
- Max. vstupný objtage: 2KV Working Voltage (Vp-p)

Figure 3.3: The P4250 High Voltage Probe, an included accessory, with its detailed specifications table.
4. Nastavenie
4.1 Vybalenie a kontrola
- Osciloskop a všetko príslušenstvo opatrne vyberte z obalu.
- Inspect the device for any signs of damage during transit. If damage is found, contact your supplier immediately.
- Overte, či sú prítomné všetky položky uvedené v dodacom liste.
4.2 Pripojenie napájania
- Pripojte dodaný napájací kábel do napájacej zásuvky na zadnom paneli osciloskopu.
- Plug the other end of the power cord into a grounded AC power outlet. Ensure the power supply voltagzodpovedá požiadavkám uvedeným na štítku zariadenia.
4.3 Prvé zapnutie
- 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 Pripojenie a kompenzácia sondy
- 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. Návod na obsluhu
5.1 Základná obsluha osciloskopu
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.
- Pripojenie k obvodu: Connect the compensated probe to the desired test point on your circuit.
- Vertikálna stupnica (volty/diel): Použite Vertikálne knob to adjust the vertical sensitivity, changing the voltage scale per division on the display.
- Vertikálna poloha: Použite pozícia knob in the Vertical section to move the waveform up or down on the screen.
- Horizontálna mierka (čas/delenie): Použite Horizontálne knob to adjust the time base, changing the time scale per division.
- Horizontálna poloha: Použite pozícia knob in the Horizontal section to shift the waveform left or right.
- Spúšťanie: The Spúšťač section controls when the oscilloscope starts acquiring data. Adjust the trigger level to stabilize the waveform. The SDS220S supports Edge and Video trigger types.
- Automatické merania: Stlačte tlačidlo Zmerajte 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 Činnosť generátora priebehov
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.
- Pripojenie výstupu: Connect the signal generator output port to the desired input of your circuit or to an oscilloscope channel for monitoring.
- Vyberte tvar vlny: 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.
- Upraviť parametre: 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 Pokročilé funkcie
- FFT spektrálna analýza: Stlačte tlačidlo Matematika button and select FFT to analyze the frequency components of a signal.
- Režim XY: This mode is used to display the relationship between two signals, often for phase comparison.
- Uložiť/Vyvolať: The oscilloscope allows saving and recalling up to 16 waveforms for later analysis or comparison.
- Pripojenie k 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 softvér.
6. Údržba
6.1 Čistenie zariadenia
Pre zachovanie výkonu a vzhľadu osciloskopu:
- Pred čistením odpojte napájací kábel.
- Použite mäkkú handričku dampened with a mild detergent solution to clean the exterior surfaces. Do not use abrasive cleaners or solvents.
- Na displej použite mäkkú handričku, ktorá nepúšťa vlákna a je špeciálne určená na obrazovky.
- Ensure no liquid enters the device through ventilation holes or ports.
6.2 Starostlivosť o sondu
- 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. Riešenie problémov
Táto časť poskytuje riešenia bežných problémov, s ktorými sa môžete stretnúť.
| Problém | Možná príčina | Riešenie |
|---|---|---|
| Žiadna sila | Power cord not connected; Power outlet faulty; Device fuse blown | Skontrolujte pripojenie napájacieho kábla; Otestujte zásuvku; Kontaktujte servis kvôli výmene poistky. |
| Žiadny priebeh sa nezobrazuje | 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. |
| Skreslený priebeh | 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 ampnastavenia nadmorskej výšky. |
8. Špecifikácie
8.1 Parametre osciloskopu
| Parameter | Špecifikácia |
|---|---|
| Analógová šírka pásma | 200 MHz |
| Kanály | 2 |
| Sampsadzba ling | 1GSa/s |
| Max Record Length | 20 mil |
| Vstupná spojka | DC, AC, uzemnenie |
| Rozsah vertikálnej citlivosti | 2 mV/div ~ 10 V/div |
| Vertikálne rozlíšenie | 8 bits (2 Channels Simultaneously) |
| Ukladanie priebehov | 16 Priebehy |
| Typ spúšťača | Okraj, Video |
| Rozsah časovej základne | 2ns/div ~ 1000s/div, Step by 1-2-5 |
| Matematika tvarov vĺn | +, -, ×, ÷, FFT |
| Vstupná impedancia | 1MΩ±2%, In Parallel with 20 pF±5 pF |
| Režimy skenovania | Normal, Peakdetect, Averaging |
| Komunikačné rozhranie | USB hostiteľ a zariadenie |
8.2 Waveform Generator Parameters
| Parameter | Špecifikácia |
|---|---|
| Max Frequency Output | 25 MHz |
| Kanály | 1CH AWG |
| Sample Rate | 125MSa/s |
| Arbitrary Waveform Length | 8K |
| Výstup Amplituda | 5mVpp to 3 Vpp (50Ω) |
| Vertikálne rozlíšenie | 14 bitov |
| Štandardné priebehy | Sínus, štvorec, Ramp Wave, Pulse Wave, Arbitrary Wave |
| Ľubovoľné priebehy | Sinc, Exponential Rise, Exponential Decline, Gaussian, more than 160 kinds |
| DC offset | ±(3V) (High Resistance) |
8.3 Všeobecné špecifikácie
| Parameter | Špecifikácia |
|---|---|
| Displej | 7-inch TFT LCD (800*480 pixels) |
| Rozmery produktu | 11.85 x 2.76 x 6 palca (301 70 x 152 x XNUMX mm) |
| Hmotnosť položky | 2.42 libier (1.1 kg) |
| Prevádzková teplota | -10 °C ~ 55 °C |
| Prevádzková vlhkosť | ≤90% (41°C) to ≤60% (50°C) |
| Prevádzková nadmorská výška | 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. Záruka a podpora
9.1 Informácie o záruke
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 Technická podpora
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.