Digital Storage Oscilloscope 12
2.SEC/DIV Knob: Used to change the horizontal time scale so as to magnify or
compress the waveform horizontally. If the waveform acquisition is stopped (by using
the RUN/STOP or SINGLE SEQ button), the SEC/DIV control will expand or compress
the waveform. In dual-window mode, push this knob to select major or minor window.
When the major window is selected, this knob provides the same functions as it
provides in single-mode window. When the minor window is selected, turn this knob to
scale the waveform whose magnification is up to 1000.
Notes:
1. For more information of the trigger holdoff, see Section Trigger Controls.
2.6.1 Scan Mode Display (Roll Mode)
With the SEC/DIV control set to 80ms/div or slower and the trigger mode set to Auto,
the oscilloscope works in the scan acquisition mode. In this mode, the waveform
display is updated from left to right without any trigger or horizontal position control.
2.7 Vertical System
2.7.1 Vertical Controls
Vertical controls can be used to display and remove waveforms, adjust vertical scale
and position, set input parameters and perform math calculations. Each channel has a
separate vertical menu to set. See below for menu description.
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