Setting Horizontal System; Changing Timebase; Moving Waveforms Horizontally; Zooming In/Out Waveforms - UNI-T UTD1000L Series User Manual

100:1 100×
1000:1 1000×

6.3 Setting Horizontal System

6.3.1 Changing Timebase

Press s/ns button slow down or speed up the scan rate from 10ns or 5ns/div～50s/div.
Notes: For 25MHz-bandwidth models: 10ns/div～50s/div; 50MHz-bandwidth Models: 5ns/div～50s/div.

6.3.2 Moving Waveforms Horizontally

Press Left and Right buttons to adjust pretrigger depth. The trigger location is usually set at horizontal
center on the screen. With the adjustment, you can observe 6div pretrigger and delay data. Through
moving the waveform horizontally, more trigger information can be viewed, which let users know more
about pretrigger situation. For instance, by observing and analyzing pretrigger data of glitches occurring in
circuit start-up, you can trace down the cause to the glitches.
Press HORIZONTAL button to switch on horizontal menu, refer to the following figure:
Figure 6-4 Horizontal Setup Menu
There are two options in horizontal menu: Window and Hold-Off

6.3.3 Zooming in/out Waveforms

Switch on horizontal menu and press F1 button to zoom in one segment of the wavefom. The timebase for
expanded window shouldn't be lower than that of main window. Note: Timebase faster than 100ns cannot
enter into expanded window.
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