1. Introduction
This user manual provides comprehensive instructions for the operation, maintenance, and troubleshooting of the Tektronix MSO44 4-BW-200 Mixed Signal Oscilloscope. This advanced instrument is designed for precise signal analysis, offering high resolution and versatile measurement capabilities for various applications, including embedded systems, power electronics, and automotive electronics.
Figure 1: Front view of the Tektronix MSO44 4-BW-200 Mixed Signal Oscilloscope, showcasing its large touchscreen display, multiple input channels, and control knobs. The device features a blue handle for portability.
2. Setup and Initial Configuration
2.1 Unpacking and Inspection
Carefully remove the oscilloscope from its packaging. Inspect the unit for any signs of physical damage that may have occurred during transit. Retain the original packaging for future transportation or storage.
2.2 Power Connection
- Ensure the oscilloscope's power switch is in the OFF position.
- Connect the provided power cord to the AC input on the rear panel of the oscilloscope.
- Plug the other end of the power cord into a grounded AC power outlet.
2.3 Initial Power On
Press the power button located on the front panel. The oscilloscope will perform a self-test and boot up. The display will show the Tektronix logo followed by the main measurement interface.
2.4 Connecting Probes and Inputs
The MSO44 features FlexChannels, which can be configured as analog or digital inputs.
- For analog signals, connect BNC probes to the input connectors on the front panel.
- For digital signals, use the appropriate digital probe accessories (sold separately) and connect them to the dedicated digital input ports.
- Ensure all connections are secure to prevent signal degradation.
3. Operating Instructions
3.1 User Interface Overview
The oscilloscope features a 13.3-inch HD capacitive touchscreen display for intuitive operation. Key controls are also available via physical knobs and buttons on the right side of the display.
3.2 Basic Measurements
- Channel Setup: Press the channel button corresponding to the input you wish to configure. Use the touchscreen or vertical scale knob to adjust vertical sensitivity (Volts/Div).
- Time Base: Use the horizontal scale knob to adjust the time base (Seconds/Div) to view the desired number of cycles.
- Triggering: The trigger system stabilizes repetitive waveforms. Use the trigger level knob to set the trigger threshold. Select trigger type (Edge, Pulse, Runt, etc.) from the trigger menu on the screen.
- Measurements: Access the 'Measure' menu to add automatic measurements such as frequency, peak-to-peak voltage, RMS, etc.
3.3 Advanced Features
- FlexChannel Technology: Each FlexChannel input can be configured as one analog channel or eight digital logic channels. This is configured through the channel setup menu.
- High Resolution Mode: The oscilloscope offers 12-bit ADC resolution, which can be enhanced to 16 bits in High Resolution Mode for more precise measurements. Enable this mode via the display settings.
- Record Length: The MSO44 features a 31.25 M record length, allowing for capture of long signal durations at high sample rates. Adjust record length settings in the acquisition menu.
- Analysis Tools: Utilize built-in analysis tools such as FFT (Fast Fourier Transform) for frequency domain analysis, cursors for precise point measurements, and waveform math functions.
4. Maintenance
4.1 Cleaning the Instrument
To maintain the performance and appearance of your oscilloscope:
- Exterior: Use a soft, damp cloth with a mild detergent to clean the exterior surfaces. Avoid abrasive cleaners or solvents.
- Display: Use a soft, lint-free cloth specifically designed for cleaning electronic displays. Do not spray cleaning solutions directly onto the screen.
- Connectors: Keep input connectors clean and free of dust. Use compressed air if necessary, but avoid inserting objects into the connectors.
4.2 Calibration
The MSO44 is factory calibrated. For optimal performance, periodic calibration by a qualified service center is recommended. Refer to the Tektronix website or contact support for calibration services.
4.3 Storage
When not in use for extended periods, store the oscilloscope in a clean, dry environment, away from direct sunlight and extreme temperatures. Use the original packaging or a suitable protective case.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No display after power on | Power cord not connected; Power outlet issue; Internal fault | Check power cord connection; Verify power outlet functionality; Contact Tektronix support |
| No waveform displayed | Probe not connected; Incorrect channel settings; Trigger not set correctly; Signal too small or large | Ensure probe is connected and functional; Check channel voltage/division settings; Adjust trigger level and type; Adjust vertical scale or input signal |
| Unstable waveform | Improper trigger settings; Noise in signal; Grounding issue | Adjust trigger source, level, and slope; Use averaging or bandwidth limit; Ensure proper grounding of the oscilloscope and circuit |
| Touchscreen unresponsive | Temporary software glitch; Screen calibration needed | Restart the oscilloscope; Refer to the full manual for touchscreen calibration procedures |
6. Specifications
The following table outlines the key technical specifications for the Tektronix MSO44 4-BW-200 Mixed Signal Oscilloscope.
| Feature | Specification |
|---|---|
| Number of FlexChannels | 4 |
| Bandwidth (all analog channels) | 200 MHz |
| Sample Rate (all analog/digital channels) | 6.25 GS/s (real-time) |
| Vertical Resolution | 12 bits ADC (16 bits in High Resolution Mode) |
| Display | 13.3 in. color HD (1920 x 1080) capacitive touchscreen |
| Record Length | 31.25 M points |
| Product Dimensions | 2.76 x 0.79 x 10.24 inches |
| Item Weight | 48.75 Pounds |
7. Warranty and Support
7.1 Warranty Information
Tektronix products are backed by a standard warranty. For detailed information regarding the warranty period and terms for your MSO44 4-BW-200 oscilloscope, please refer to the warranty card included with your product or visit the official Tektronix website.
7.2 Technical Support
Should you encounter any issues or require technical assistance, please contact Tektronix customer support.
- Online Resources: Visit the official Tektronix support website for FAQs, drivers, software updates, and additional documentation.
- Contact Information: Refer to the Tektronix website for regional contact numbers and email support.
- When contacting support, please have your product model number (MSO44 4-BW-200) and serial number ready.
