OWON ADS814A 12-bit Digital Oscilloscope User Manual

1. Introduction

The OWON ADS814A is a high-performance 4-channel 12-bit digital oscilloscope designed for precise signal analysis. Featuring a 100 MHz bandwidth, 1.25 GSa/s real-time sample rate, and a 7-inch multi-touch screen, this instrument offers advanced measurement capabilities for various applications. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your device.

2. Key Features

• 12-bit Vertical Resolution: Captures signal details with 4096 levels of vertical resolution, significantly enhancing precision for microvolt-level signal analysis.
• High Performance: Offers 100 MHz bandwidth, 1.25 GSa/s real-time sample rate, 50 Mpts memory depth, and a waveform capture rate of up to 700,000 wfms/s.
• Extensive Trigger Types: Supports Edge, Video, Pulse Width, Slope, Runt, Overtime, Nth Edge, Logic, and serial bus triggers (RS232/UART, I2C, SPI, CAN, LIN).
• Hardware Decoding: Provides 2-channel hardware decoding for RS232/UART, I2C, SPI, CAN, and LIN protocols.
• 7-inch Multi-Touch Screen: Intuitive smartphone-like operation with user-customizable shortcut keys. Supports external mouse and keyboard for enhanced efficiency.
• Advanced Measurement Functions: Includes 43 automatic measurements with advanced mathematical functions, measurement gating, and a technical terms dictionary for quick setup.
• Multi-functional Design: Integrates digital oscilloscope, protocol analyzer, high-precision frequency counter, FFT spectrum analyzer, and voltmeter functionalities.

Figure 2.1: The OWON ADS814A functions as a digital oscilloscope, protocol analyzer, FFT spectrum analyzer, voltmeter, and high-precision frequency counter.

3. Setup

3.1 Unpacking and Inspection

Carefully remove the oscilloscope from its packaging. Inspect the device for any signs of damage during transit. Ensure all accessories listed in the packing list are present.

3.2 Power Connection

1. Connect the provided power adapter to the DC 12V power input port on the rear panel of the oscilloscope.
2. Plug the power adapter into a suitable AC power outlet.
3. Press the power button located on the front panel to turn on the device.

3.3 Probe Connection

Connect the BNC end of the oscilloscope probes to the input channels (CH1, CH2, CH3, CH4) on the front panel. Ensure a secure connection by twisting the BNC connector until it locks. Connect the probe tip and ground clip to the circuit under test.

Figure 3.1: Front panel of the OWON ADS814A, showing input channels and controls.

Figure 3.2: Rear panel connections including LAN, USB, HDMI, and power input.

4. Operating Instructions

4.1 User Interface Navigation

The ADS814A features a 7-inch multi-touch screen for intuitive control. You can interact with the device using touch gestures similar to a smartphone. Physical knobs and buttons are also available for precise adjustments of vertical scale, horizontal scale, and position.

Figure 4.1: The 7-inch multi-touch screen interface.

4.2 Basic Measurements

1. Vertical Scale (Voltage): Use the vertical scale knob (labeled 'Scale' under 'Vertical') to adjust the volts per division.
2. Horizontal Scale (Time): Use the horizontal scale knob (labeled 'Scale' under 'Horizontal') to adjust the seconds per division.
3. Position Adjustment: Use the vertical and horizontal position knobs to shift the waveform on the screen.
4. Auto Set: Press the 'Autoset' button for the oscilloscope to automatically adjust settings to display a stable waveform.
5. Automatic Measurements: Press the 'Measure' button to access a menu of 43 automatic measurements. Select desired parameters like Vavg, Vpp, Frequency, Period, etc.

Figure 4.2: Durable electroplated control knobs for precise adjustments.

4.3 Triggering

The trigger system stabilizes repetitive waveforms and captures single-shot events. Use the 'Trigger' section on the front panel to adjust trigger settings.

• Trigger Level: Adjust the trigger level knob to set the voltage point at which the trigger occurs.
• Trigger Mode: Select between Auto, Normal, and Single modes. Auto mode triggers even without a signal, Normal mode requires a trigger event, and Single mode captures one event and stops.
• Trigger Type: Access the trigger menu on the screen to select advanced trigger types such as Edge, Pulse Width, Video, etc.

5. Maintenance

5.1 Cleaning

To maintain the performance and appearance of your oscilloscope, clean the exterior surfaces regularly. Use a soft, damp cloth with a mild detergent. Avoid abrasive cleaners or solvents that could damage the casing or screen. Ensure the device is powered off and disconnected from the power source before cleaning.

5.2 Storage

When not in use for extended periods, store the oscilloscope in a dry, dust-free environment, away from direct sunlight and extreme temperatures. Use the original packaging or a protective case to prevent damage.

5.3 Calibration

The oscilloscope is factory calibrated. For optimal accuracy, periodic calibration by qualified personnel is recommended. Refer to the official OWON support resources for calibration services.

6. Troubleshooting

If the problem persists after attempting these solutions, please contact OWON customer support for further assistance.

7. Specifications

Figure 7.1: Physical dimensions of the ADS814A unit.

8. Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the documentation included with your product or visit the official OWON website. Keep your purchase receipt as proof of purchase for warranty claims.