Display Interface of the ZT-703S Oscilloscope Multimeter
Many users are not very familiar with the display interface of the ZT-703S oscilloscope multimeter. Today, let me give you a brief introduction to the ZT-703S display interface.
When you turn on the device, you’ll notice a "RUN" symbol in the upper left corner of the screen. This represents the operating status. The ZT-703S provides four operation modes:
RUN: Automatic waveform acquisition mode
WAIT: Normal trigger mode, blinking while waiting for a trigger signal
T˙D: Triggered and captured waveform data
STOP: Locked waveform, acquisition stopped
Part 1: Explanation of the Four Operating Modes
1. RUN (Automatic Waveform Acquisition Mode)
In this mode, the oscilloscope is in continuous acquisition mode, capturing input signal waveforms and updating the display in real time.
- Use case: Observing continuously changing signals, such as AC waveforms, dynamic circuit signals, or other scenarios requiring real-time monitoring.
- Key feature: The waveform on the screen updates constantly, reflecting real-time changes in the input signal. This mode allows users to monitor signal trends dynamically.
2. WAIT (Normal Trigger Mode, Blinking While Waiting for Trigger Signal)
In this mode, the oscilloscope waits to capture waveforms that meet specific trigger conditions. The screen may display the waveform from before the last trigger.
- Use case: Precisely capturing specific signal events, such as transient signals or anomalies in a circuit.
- Key feature: If no trigger signal is detected, the oscilloscope remains in "WAIT" mode, and the display content does not change. When a trigger signal is detected, the status switches to "T˙D" (Triggered and Captured Waveform Data).
3. T˙D (Triggered and Captured Waveform Data)
In this mode, the oscilloscope has detected and captured the trigger signal, displaying the waveform that meets the trigger conditions.
- Use case: Viewing specific triggered events, such as capturing the transient waveform of a power switch or a signal's transition point.
- Key feature: The captured waveform is locked on the screen until the oscilloscope re-enters WAIT or RUN mode. This mode is used to analyze critical signal points.
4. STOP (Locked Waveform, Acquisition Stopped)
This mode indicates that the oscilloscope has stopped acquiring waveforms. The current waveform is locked on the screen and does not update.
- Use case: Examining waveform details, such as measuring voltage, period, frequency, and other parameters.
- Key feature: Users can manually adjust the time base and voltage reference to zoom in or out for more details. The displayed waveform remains unchanged regardless of input signal changes.
Summary of Modes
- RUN: Suitable for real-time signal monitoring.
- WAIT: Captures signal events under specific trigger conditions.
- T˙D: Analyzes the characteristics of triggered waveforms.
- STOP: Ideal for static analysis and measurements.
Part 2: How to Set the Four Operating Modes
RUN
- By default, the oscilloscope starts in RUN (automatic monitoring) mode after powering on.
- Alternatively, select "AUTO" in the TRIG MODE menu to enable automatic monitoring.
WAIT
- Select "NORMAL" or "SINGLE" in the TRIG MODE menu to switch to WAIT mode.
T˙D
- In the voltage-time base interface, press F3 TRIG and set the trigger edge (rising or falling). Once an appropriate waveform is detected, the oscilloscope will switch to T˙D mode.
STOP
- In RUN, WAIT, or T˙D modes, press the HOLD button to lock the waveform, activating the STOP mode.
- Alternatively, in the TRIG MODE menu, set the mode to "SINGLE." When an appropriate waveform is detected, the oscilloscope will automatically switch to STOP mode.
