1. Introduktion
The OWON SDS1104 is a 4-channel digital storage oscilloscope designed for high accuracy and performance in various electrical testing and measurement applications. It features a 100MHz bandwidth and a 1GS/s sample rate, making it suitable for detailed waveform analysis.
This manual provides essential information for the proper setup, operation, and maintenance of your SDS1104 oscilloscope. Please read it thoroughly before using the device.

Figur 1.1: Forside view of the OWON SDS1104 Digital Oscilloscope.
2. Nøglefunktioner
- Båndbredde: 100MHz with 4 independent channels.
- Sample pris: Up to 1GS/s real-time sample sats.
- Optagelseslængde: 40M record length for detailed signal capture.
- Bølgeformens opdateringshastighed: 45,000 wfms/s for quick observation of signal changes.
- Vise: 8-inch 800x600 high-resolution LCD for clear waveform display.
- Forbindelse: SCPI and LabVIEW supported for remote control and data analysis.
- Triggerfunktioner: Multi-trigger options including Edge, Video, Pulse, Slope, Runt, Windows, Timeout, Nth Edge, Logic, I2C, SPI, RS232, CAN (optional).
- Automatiske målinger: Built-in functions for 39 types of automatic measurements.

Figur 2.1: Overview of key features for the SDS1000 series, including 100MHz bandwidth, 4 channels, 1GS/s sample rate, ultra-thin body, 7-inch high resolution LCD, and SCPI/LabVIEW støtte.
3. Produktet er slutview og kontroller
3.1 Frontpanel
The front panel of the SDS1104 features the display, control knobs, function buttons, and input channels. Understanding the layout is crucial for efficient operation.

Figure 3.1: Labeled front panel of the SDS1104, showing the 7-inch high resolution LCD, menu selection buttons, multipurpose knob, common function shortcut keys, horizontal control system, trigger system, copy key, vertical control system, signal input channels (CH1-CH4), USB Host port, and power on/off button.
- Vise: 7-inch high resolution LCD (800x480 pixels) for waveform visualization.
- Menu Selection Buttons: Navigate through on-screen menus.
- Multipurpose Knob: Juster forskellige parametre og indstillinger.
- Common Function Shortcut Keys: Hurtig adgang til ofte anvendte funktioner.
- Horizontal Control System: Adjust time base and horizontal position.
- Triggersystem: Control trigger level, mode, and type.
- Copy Key: Quickly save or copy screen content.
- Vertical Control System: Adjust vertical scale (Volts/Div) and position for each channel.
- Signal Input Channels (CH1-CH4): BNC connectors for probe input.
- USB-værtsport: Til tilslutning af USB-lagerenheder.
- Tænd/sluk: Hovedafbryder.
3.2 Rear Panel and Side Connections
The rear and side panels house additional ports and features for connectivity and stability.

Figur 3.2: Bagside view of the SDS1104, highlighting the USB Device port, handle, and foot stools for tilt adjustment.
- USB Device Port: Connects the oscilloscope to a computer for data transfer and remote control.
- Håndtag: For nem transport.
- Foot Stools: Adjustable feet to tilt the oscilloscope for better viewing vinkler.
4. Opsætning og første idriftsættelse
4.1 Udpakning og inspektion
Upon receiving your SDS1104, carefully unpack all components and inspect for any signs of damage. Retain the packaging for future transport or storage.

Figure 4.1: Contents of the SDS1000 package, including the SDS1000 unit, four probes, USB cable, probe adjustment tool, power cord, and a CD-ROM with quick guide.
Standardpakken indeholder:
- SDS1104 Oscilloscope Unit
- Sonder x 4
- USB kabel
- Probe Adjustment Tool
- Strømledning
- CD-ROM and Quick Guide
4.2 Strømtilslutning
Connect the supplied power cord to the AC input on the rear panel of the oscilloscope and then to a suitable AC power outlet (100V - 240V AC, 50/60Hz).
4.3 Probetilslutning og kompensation
Connect the oscilloscope probes to the BNC input connectors (CH1-CH4) on the front panel. It is recommended to compensate the probes before making critical measurements to ensure accurate readings.
- Connect the probe to CH1.
- Connect the probe tip to the probe compensation signal output (usually a square wave test point on the front panel).
- Adjust the probe compensation screw (on the probe body) until a flat-top square wave is displayed on the screen.
5. Betjening af oscilloskopet
5.1 Grundlæggende bølgeformvisning
After power-on, press the AUTO button to automatically adjust the vertical and horizontal settings for a stable waveform display. Use the vertical (Volts/Div) and horizontal (Time/Div) knobs to fine-tune the display.
5.2 Automatic Measurements
The SDS1104 offers 39 types of automatic measurements, providing quick and accurate analysis of waveform parameters.

Figure 5.1: Screen showing built-in 39 types of auto measurements and the FFT spectrum analysis function. Measurements include Max, Min, Pk-Pk, RMS, Mean, Frequency, Period, Rise Time, Fall Time, and more. The FFT function supports Hamming, Hanning, Blackman, Rectangle, Kaiser, and Bartlett windows.
To access automatic measurements, press the MÅLE button. You can select various parameters such as Period, Frequency, Mean, PK-PK, RMS, Max, Min, Rise Time, Fall Time, etc.
5.3 Cursor and Zoom Functions
The oscilloscope provides auto cursor and waveform zoom functions for detailed analysis of specific waveform sections.

Figure 5.2: Display illustrating the Auto Cursor function for measuring differences between two points on a waveform, and the Waveform Zoom function for enlarging specific areas of the waveform for detailed observation.
- Auto Cursor: Automatically places cursors to measure parameters like voltage difference (ΔV) and time difference (ΔT).
- Waveform Zoom: Enlarge a specific portion of the waveform for closer inspection.
5.4 Waveform Storage and Math Functions
The SDS1104 allows saving waveforms and performing mathematical operations on them.

Figure 5.3: Screen demonstrating the Waveform Storage function, allowing up to 16 sets of waveforms to be saved and compared, and the Waveform Math Function, which includes operations like +, -, ×, /, FFT, and invert.
- Bølgeformlagring: Save up to 16 sets of waveforms to internal memory or a USB disk for later recall and analysis.
- Waveform Math: Perform operations such as addition, subtraction, multiplication, division, FFT (Fast Fourier Transform), and inversion on waveforms.
5.5 PC Communication
The oscilloscope can be connected to a host computer for remote control, data logging, and advanced analysis using SCPI commands or LabVIEW software.

Figure 5.4: Illustration of the SDS1104 communicating with a computer via the supplied USB cable, supporting SCPI and LabVIEW kommunikationsfunktioner.
Use the provided USB cable to connect the oscilloscope's USB Device port to your computer. Install the necessary drivers and software (available on the included CD-ROM or OWON's website) to establish communication.
6. Vedligeholdelse
Proper maintenance ensures the longevity and accuracy of your SDS1104 oscilloscope.
- Rensning: Brug en blød, damp cloth to clean the exterior of the oscilloscope. Do not use abrasive cleaners or solvents. Ensure the device is powered off and unplugged before cleaning.
- Opbevaring: Når oscilloskopet ikke er i brug, skal det opbevares tørt og støvfrit, væk fra direkte sollys og ekstreme temperaturer.
- Probepleje: Handle probes carefully. Avoid bending or kinking the cables. Store them properly to prevent damage to the tips and connectors.
- Kalibrering: Periodic calibration by qualified personnel is recommended to maintain measurement accuracy, especially after significant temperature changes or prolonged use.
7. Fejlfinding
This section addresses common issues you might encounter with your SDS1104 oscilloscope.
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Intet display efter tænding. | Power cord not connected, power switch off, power supply issue. | Check power cord connection, ensure power switch is on, try a different power outlet. |
| Ingen bølgeform vises | Probe not connected, signal too small/large, trigger not set correctly, channel off. | Connect probe, adjust vertical scale (Volts/Div), press AUTO, check trigger settings, ensure channel is enabled. |
| Ustabil bølgeform. | Incorrect trigger level or mode, noisy signal. | Adjust trigger level, change trigger mode (e.g., Edge, Auto), check signal source for noise. |
| Incorrect measurements. | Probe compensation incorrect, wrong probe attenuation setting. | Perform probe compensation, ensure probe attenuation (e.g., 1X, 10X) matches oscilloscope setting. |
Hvis problemet fortsætter efter at have forsøgt disse løsninger, bedes du kontakte OWONs kundesupport.
8. Specifikationer
Detailed technical specifications for the OWON SDS1104 oscilloscope.
| Parameter | Specifikation |
|---|---|
| Model | SDS1104 |
| Båndbredde | 100 MHz |
| Kanaler | 4 |
| Sample Rate (Real-time) | Single CH: 1 GSa/s, Dual CH: 500 MSa/s, Four CH: 250 MSa/s |
| Bølgeformoptagelseshastighed | 45,000 wfms/s |
| Vise | 8" color LCD, TFT display, 800×600 pixels |
| Max Record Length | 40M (one channel), 20M (two channels), 10M (four channels) |
| Indgangskobling | DC, AC, Ground |
| Indgangsimpedans | 1MΩ±2%, in parallel with 15pF±5pF |
| Maks. Input voltage | 400 V (DC + AC Peak) |
| Vertikal følsomhed | 1 mV/div - 10 V/div |
| Trigger type | Edge, Video, Pulse, Slope, Runt, Windows, Timeout, Nth Edge, Logic, I2C, SPI, RS232, CAN (optional) |
| Decoding Type (optional) | RS232, I2C, SPI, CAN |
| Automatisk måling | Periode, Frekvens, Middel, PK-PK, RMS, Max, Min, Top, Base, Amplitude, Overshoot, Preshoot, Rise Time, Fall Time, +Pulse Width, -Pulse Width, +Duty Cycle, -Duty Cycle, Delay A→B↑, Delay A→B↓, Phase A→B↑, Phase A→B↓, +Pulse Count, -Pulse Count, Rise Edge Count, Fall Edge Count, Area, Cycle Area |
| Waveform Math | +, -, ×, /, FFT, Invert |
| Bølgeformlagring | 16 waveforms |
| Kommunikationsgrænseflade | USB host, USB device |
| Strømforsyning | 100V - 240V AC, 50/60Hz, CAT II |
| Strømforbrug | <15W |
| Dimension (B×H×D) | 301 × 152 × 70 mm |
| Enhedens vægt | Ca. 1.1 kg |
9. Garanti og support
OWON products are manufactured under strict quality control standards. For warranty information, please refer to the warranty card included with your product or visit the official OWON webwebsted.
For technical support, troubleshooting assistance beyond this manual, or service inquiries, please contact OWON customer service through their official channels. Ensure you have your product model (SDS1104) and serial number ready when contacting support.
OWON Officiel Webwebsted: www.owon.com.hk





