Comprehensive Guide to ZOYI ZT-703S (Part 10): Introduction to Oscilloscope Functions – Numeric Measurement

Welcome back to our comprehensive guide series on the ZOYI ZT-703S, the versatile handheld oscilloscope multimeter that combines the functionality of an oscilloscope, signal generator, and multimeter into one compact device. In this installment, we will delve into the Numeric Measurement feature of the oscilloscope mode, a powerful tool that allows you to extract precise numerical data from your waveforms.

Understanding Numeric Measurement

The Numeric Measurement function on the ZT-703S is designed to provide you with detailed numerical data about the waveforms you are analyzing. This feature is particularly useful when you need to measure specific parameters such as voltage, frequency, and time intervals with high accuracy.

Automatic Measurement

When you encounter an unknown signal, the ZT-703S can automatically recognize and adjust the waveform amplitude and time base to display the matched waveform on the screen. This is done by pressing the AUTO key, which triggers the measurement system to analyze the signal and present the relevant data.

Manual Measurement

For more control over your measurements, the ZT-703S allows you to manually set parameters such as predicted waveform voltage, time base, cursor position, trigger, coupling mode, and probe attenuation. This is particularly useful when you have a specific measurement in mind and need to fine-tune the settings to get the most accurate results.

Numeric Display

The ZT-703S can display up to eight groups of numerical values, including:

• Peak-to-Peak Value (VPP)
• Maximum Value (Vmax)
• Minimum Value (Vmin)
• Root Mean Square (RMS)
• Frequency (FRQ)
• Duty Cycle
• Period (PRD)
• Frequency Meter

Due to the limited screen space, the ZT-703S can display up to four groups of values for each channel (CH1 and CH2). You can select the values you need by pressing the F3 key, which brings up the relevant numerical options on the screen. Once you have made your selection, press F3 again to exit, and the screen will display the selected measured values.

Aplicaciones prácticas

The Numeric Measurement function is invaluable in various scenarios, such as:

• Circuit Debugging: Quickly identify issues in your circuit by measuring voltage levels and signal frequencies.
• Signal Analysis: Analyze the characteristics of different waveforms, such as sine waves, square waves, and pulse waves.
• Quality Control: Ensure that your electronic components are functioning within their specified parameters by measuring key metrics like RMS voltage and duty cycle.

Tips for Accurate Measurements

1. Probe Compensation: Ensure that your probes are properly compensated before taking measurements. This can be done by connecting the probe to the signal input terminal and inputting a 1KHz square wave signal. Press the AUTO key to check the waveform display status and adjust the probe capacitance if necessary.

2. Trigger Settings: Properly configure the trigger settings to stabilize the waveform on the screen. This will help you get consistent and accurate measurements.

3. Cursor Measurement: Use the cursor measurement function to capture specific segments of the waveform for individual measurement of amplitude or time. This is particularly useful when you need to measure the voltage difference between two points or the time interval between two events.

Conclusión

The Numeric Measurement function on the ZOYI ZT-703S is a powerful tool that provides you with detailed numerical data about your waveforms. Whether you are debugging a circuit, analyzing signals, or performing quality control, this feature will help you get the precise measurements you need. Stay tuned for the next part of our guide, where we will explore more advanced features of the ZT-703S.