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OWON TAO3000 Series

OWON TAO3000 Series Handheld Flat Panel Digital Oscilloscope User Manual

Models: TAO3072, TAO3102, TAO3074, TAO3104

1. Úvod

The OWON TAO3000 series is a versatile handheld flat panel digital oscilloscope designed for convenient and accurate measurements. It features a touch screen interface, high bandwidth, deep memory, and a fast waveform refresh rate, making it suitable for a wide range of applications, including automotive diagnostics and general electronic testing. This manual provides essential information for setting up, operating, and maintaining your device.

OWON TAO3000 Oscilloscope main unit
Figure 1: OWON TAO3000 Series Handheld Digital Oscilloscope

2. Obsah balení a nastavení

Before using your oscilloscope, please ensure all components are present and in good condition.

2.1. Vybalování

Carefully unpack the device and verify the contents against the list below. The exact number of probes may vary depending on whether you have a 2-channel or 4-channel model.

Package contents for 2-channel TAO3000 model
Figure 2: Package Contents (2-channel model)
Package contents for 4-channel TAO3000 model
Figure 3: Package Contents (4-channel model)
  1. TAO3000 Oscilloscope Main Unit
  2. Napájecí kabel
  3. Napájecí adaptér
  4. Probes (x2 for 2-channel models, x4 for 4-channel models)
  5. Datový kabel Micro USB
  6. BNC-SAM Synchronous Signal Interface
  7. Probe Calibration Tool
  8. Měřicí kabely pro multimetry
  9. Stánek
  10. CD and User Manual

2.2. Zapnutí a nabíjení

  • Connect the power adapter to the oscilloscope and a power outlet to charge the internal 7.4V, 8000mAh battery.
  • A full charge provides approximately 5 hours of continuous operation.
  • Press the power button located on the device to turn it on or off.

2.3. Základní připojení

  • Sondy: Connect the oscilloscope probes to the BNC input channels (CH1, CH2, CH3, CH4) on the device.
  • Multimeter Leads: For multimeter functions, connect the test leads to the dedicated multimeter input ports.
  • USB: Use the Micro USB data cable to connect the device to a computer for data transfer or firmware updates. The device also features a USB Host port for connecting USB storage devices.
  • LAN: Connect an Ethernet cable to the LAN port for network connectivity.
Zadní a boční view of the oscilloscope showing ports
Figure 4: Rear and Side Panel Connections (USB Host, Pass/Fail, LAN, USB Device, BNC ports, Power Adapter Port)

2.4. Using the Stand

The included stand allows for convenient desktop placement, providing a stable viewing angle for the flat panel display.

Oscilloscope showing various operation modes: handheld, with stand, and backpack
Figure 5: Various Operation Modes (Handheld, with Stand, Backpack)

3. Návod k obsluze

The TAO3000 series features an intuitive 8-inch multi-touch capacitive LCD screen for easy operation.

3.1 Funkce osciloskopu

  • Zobrazení průběhu: The device can display oscilloscope waveforms and multimeter readings simultaneously.
  • Measurement Performance: Benefit from 40M memory depth and a 45000 wfms/s waveform refresh rate for capturing detailed signals and transient events.
  • Nízká hlučnost: The oscilloscope offers excellent small signal measurement capabilities due to its low noise design.
Oscilloscope showing simultaneous oscilloscope and multimeter display
Figure 6: Simultaneous Oscilloscope and Multimeter Display
Illustration of low noise, 40M memory depth, and 45000 wfms/s refresh rate
Figure 7: Superior Oscilloscope Performance Features

3.2. Trigger and Decoding Functions

The oscilloscope supports a variety of advanced trigger modes and decoding functions:

  • Režimy spouštění: Edge, Pulse, Video, Slope, Runt, Windows, Nth Edge, Delay, Timeout, Duration, Setup/Hold, Logic, I2C, SPI, RS232/UART, CAN.
  • Decoding Functions: Supports I2C, SPI, RS232/UART, and CAN bus decoding.
Diagram illustrating various trigger and decoding functions
Figure 8: Rich Trigger and Decoding Functions

3.3. Automatic Measurement and Ranging

  • The device offers automatic measurement functions for various waveform parameters.
  • Automatický rozsah: This feature automatically adjusts settings like trigger mode, amplitude, and frequency to an appropriate range based on the measured signal, facilitating quick setup.
Oscilloscope screen showing automatic ranging in horizontal/vertical multi-mode waveform display
Figure 9: Automatic Ranging Function

3.4. Mathematical Operations and Wi-Fi

  • Matematické funkce: Supports addition, subtraction, multiplication, division, FFT, integral, differential, square root, custom functions, and digital filters.
  • Built-in Wi-Fi (Optional): With the optional built-in Wi-Fi module, users can interact with the TAO3000 via a mobile app, enabling remote display, control, waveform data viewing, and sharing for collaborative work.
Image showing mathematical operation interface and Wi-Fi connectivity diagram
Figure 10: Mathematical Operations and Wi-Fi Functionality

3.5. Automotive Applications

The TAO3000 series is well-suited for automotive diagnostics, including:

  • CAN Bus Waveform Measurement: Connect channels 1 and 2 of the TAO3104A oscilloscope to the CAN-H and CAN-L lines respectively. For example, connect CH1 to CAN-H (pin 68) and CH2 to CAN-L (pin 67) on an ECU94 pin header.
Wiring diagram and oscilloscope display for CAN bus waveform measurement
Figure 11: CAN Bus Waveform Measurement Example

Observed waveform characteristics for CAN bus:

  1. CAN-H voltage ranges from 2.5V to 3.5V, with an average voltage 2.8V.
  2. CAN-L voltage ranges from 2.5V to 1.5V, with an average voltage 2.2V.
  3. The waveform is symmetrical vertically.
  4. The CAN bus does not have a single-line operation capability.
  5. When the ignition switch is turned off, the CAN bus stops

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