UNI-T UPO2074E Digital Phosphor Oscilloscope User Manual

1. Introduction

The UNI-T UPO2074E is a high-performance digital phosphor oscilloscope designed for precise signal analysis. Featuring ultra-phosphor technology from the UPO2000E series, this instrument offers 4 channels, a 70 MHz bandwidth, and a 1 GS/s real-time sampling rate. Its 800 x 480 pixel display provides clear waveform visualization, and its extensive features make it suitable for various measurement and analysis tasks. The UPO2074E supports USB memory for data storage and PC communication via USB Plug and Play.

Figure 1.1: Front view of the UPO2074E Oscilloscope, highlighting its display and control interface.

2. Safety Information

Please read and understand all safety instructions before operating the UNI-T UPO2074E oscilloscope. Failure to follow these guidelines may result in injury or damage to the instrument.

• Hazardous Voltage: This instrument contains hazardous voltage. Do not remove the cover. Refer all servicing to qualified personnel.
• Grounding: To avoid electric shock, always connect this instrument to earth ground using the provided three-wire power cable.
• Power Source: Ensure the power source matches the voltage requirements specified on the instrument (100V-240V AC, 50/60Hz).
• Environment: Operate the oscilloscope in a dry, well-ventilated area. Avoid exposure to moisture, extreme temperatures, or direct sunlight.
• Probes: Use only probes supplied or recommended by UNI-T. Ensure probes are properly connected and rated for the voltage being measured.

Figure 2.1: Rear view of the UPO2074E, showing power input and safety warnings.

3. Package Contents

Verify that all items listed below are included in your package. If any items are missing or damaged, please contact your supplier.

• UNI-T UPO2074E Digital Phosphor Oscilloscope
• 4-part Probe Set (with switchable 1x, 10x divider)
• Removable Three-wire Power Cable
• USB Cable
• Quick Installation Guide

4. Product Features

The UPO2074E oscilloscope offers a comprehensive set of features for advanced signal analysis:

• Bandwidth: 70 MHz
• Number of Channels: 4
• Sampling Rate: 1 GS/s (real-time)
• Max Memory Depth: 56 Mpts (per channel)
• Waveform Capture Rate: Up to 80,000 wfms/s
• Digital Phosphor Display: 256 levels of gray, reflecting waveform occurrence probability.
• Time Base Range: 5 ns/div - 50 s/div
• Input Coupling: (1MΩ ± 2%) // (20pF ± 3pF)
• Vertical Axis: 1 mV/div - 20 V/div (1 MΩ)
• DC Gain Accuracy: ± 3 %
• Number of Recorded Waveforms: 65,000
• Trigger Types: Edge, Window, Runt, Timeout, Nth Edge, Delay, Duration, Setup/Hold, Pulse Width, Slope, Video, Pattern, RS232/UART, I2C, SPI
• Waveform Math Operations: A + B, A-B, AxB, A/B, FFT, Logic Operation, Editable Extended, Filter
• Automatic Measurements: Supports 34 types including Max, Min, Pk-Pk, Amplitude, Mean, RMS, Period, Freq, Rise, Fall, Duty Cycle, and more.
• Simultaneous Measurements: Up to 5 simultaneous measurements.
• Statistics: Average, Max, Min, Standard Deviation, Number of Measurements.
• Frequency Counter: 6 bits
• Standard Interfaces: USB Host, USB Device, LAN, AUX (Trig Out, Pass/Fail)
• Display: 8-inch, 800 x 480 pixel screen.

5. Setup

Follow these steps to set up your UNI-T UPO2074E oscilloscope:

1. Unpacking: Carefully remove the oscilloscope and all accessories from the packaging. Retain the packaging for future transport or storage.
2. Power Connection: Connect the provided three-wire power cable to the AC input on the rear panel of the oscilloscope and then to a grounded power outlet.
3. Power On: Press the power button located on the front panel to turn on the oscilloscope. The display should illuminate, and the system will boot up.
4. Probe Connection: Connect the BNC end of the 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.
5. Probe Compensation: Before taking measurements, it is recommended to compensate the probes to ensure accurate readings. Connect the probe tip to the probe compensation output (usually a square wave signal) on the front panel and adjust the probe until the square wave is flat-topped.

6. Operating Instructions

This section provides a general overview of the oscilloscope's operation. Refer to the on-screen menus and the quick installation guide for detailed instructions on specific functions.

6.1 Front Panel Controls

The front panel of the UPO2074E is intuitively designed for ease of use. Key control areas include:

• Display Area: Shows waveforms, measurement results, and menu options.
• Vertical Controls: Adjust vertical position and voltage scale (Volts/Div) for each channel.
• Horizontal Controls: Adjust horizontal position and time scale (Sec/Div).
• Trigger Controls: Set the trigger level, mode, and type to stabilize waveforms.
• Function Buttons (F1-F5): Context-sensitive buttons that change functionality based on the active menu.
• Multipurpose Knob: Used for navigating menus and adjusting parameters.
• Menu Buttons: Access various functions such as Measure, Acquire, Storage, Display, Utility, and Help.

6.2 Basic Measurement Steps

1. Connect Signal: Connect the probe to the circuit point where you want to measure the signal.
2. Auto Set: Press the AUTO button to automatically adjust vertical, horizontal, and trigger settings for a stable display.
3. Adjust Vertical Scale: Use the VOLTS/DIV knob for the active channel to adjust the vertical scale until the waveform occupies a suitable portion of the screen.
4. Adjust Horizontal Scale: Use the SEC/DIV knob to adjust the horizontal scale to view the desired number of cycles.
5. Adjust Trigger: If the waveform is not stable, adjust the TRIGGER LEVEL knob to set the trigger point.
6. Perform Measurements: Use the MEASURE menu to select automatic measurements (e.g., Frequency, Peak-to-Peak Voltage).

7. Maintenance

Proper maintenance ensures the longevity and accuracy of your oscilloscope.

• Cleaning: Clean the instrument's exterior with a soft, damp cloth. Do not use abrasive cleaners or solvents. Ensure the instrument is powered off and unplugged before cleaning.
• Ventilation: Keep the ventilation openings on the rear and sides of the oscilloscope clear to prevent overheating.
• Storage: When not in use for extended periods, store the oscilloscope in a dry, dust-free environment.
• Probe Care: Handle probes carefully. Avoid bending or twisting the cables excessively. Store probes properly to prevent damage to the tips.

8. Troubleshooting

This section addresses common issues you might encounter with your UPO2074E oscilloscope.

9. Specifications

Detailed technical specifications for the UNI-T UPO2074E oscilloscope:

• Power Supply: 100 V-240 V AC, 50/60 Hz
• Display: 8-inch TFT LCD, 800 x 480 pixels
• Dimensions (W x H x D): 336 x 164 x 108 mm
• Weight: 3.5 kg
• Manufacturer: UNI-T
• Model Number: UPO2074E
• ASIN: B0BYT8Y418
• Date First Available on Amazon.com.be: March 17, 2023

10. Warranty and Support

UNI-T products are designed for reliability and performance. For specific warranty terms and conditions, please refer to the documentation provided with your purchase or contact UNI-T customer support directly.

• Return Policy: This product typically offers a 30-day return policy for refund or replacement, subject to retailer terms.
• Technical Support: For technical assistance, troubleshooting beyond this manual, or service inquiries, please visit the official UNI-T website or contact their authorized service centers.