Keysight 1000 Series, Руководство пользователя

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44 Keysight 1000 Series Oscilloscopes User’s Guide
2
Displaying Data
• Turn its vertical scale knob to change the amplitude per division setting.
The amplitude/div setting changes in a 1-2-5 step sequence from 2 mV/div to
5 V/div (with “1X” probe attenuation).
Either ground or the center of the screen is used as a reference, depending on
the “Expand Reference” preference setting (see “To select the vertical scale
reference level" on page 134). The “center of screen” reference is not available
for math function or reference waveforms.
• Push its vertical scale knob to toggle between vernier (fine scale) adjustment
and normal adjustment.
With vernier adjustment, the amplitude/div setting changes in small steps
between the normal (coarse scale) settings.
The Volts/Div item in a channel’s menu also toggles between vernier and
normal adjustment (see “To change the Volts/Div control sensitivity" on
page 49).
Vernier adjustment is not available for math function or reference waveforms.
The amplitude/div setting is displayed in the status bar at the bottom of the
screen.
To adjust the vertical position
Adjusting their vertical position lets you compare waveforms by aligning them
above one another or on top of each other.
When an input channel waveform is on:
• Turn the vertical position knob to change the vertical position of the waveform
on the screen.
Notice that the ground reference symbol on the left side of the display moves
with the waveform.
• Push the vertical position knob to “zero” the ground reference (in other words,
move it to the center of the screen).
Notice that, as you adjust the vertical position, a message showing the position of
the ground reference relative to the center of the screen is temporarily displayed in
the lower left-hand corner of the screen.