Agilent Technologies 6000 Series To pan and zoom a waveform, To set the waveform expansion reference point

Displaying Data 6
6000 Series Oscilloscope User’s Guide 259
To pan and zoom a waveform
1Press the Run/Stop key to stop acquisitions. The Run/Stop key
is illuminated red when the oscilloscope is stopped.
2Turn the sweep speed knob to zoom horizontally and turn
the volts/division knob to zoom vertically.
The ∇ symbol at the top of the display indicates the time
reference point where the zoom-in/zoom-out is referenced.
3Turn the Horizontal Position knob () to pan horizontally
and turn the channel’s vertical position knob ( ) to pan
vertically.
The stopped display may contain several triggers worth of
information, but only the last trigger acquisition is available for
pan and zoom.
To set the waveform expansion reference point
When you change a channel's volts/division setting, the
waveform display can be set to expand (or compress) about the
signal ground level or the center of the display.
Expand About Ground The displayed waveform will expand
about the position of the channel's ground. This is the default
setting. The ground level of the signal is identified by the
position of the ground level ( ) icon at the far-left side of the
display. The ground level will not move when you adjust the
vertical sensitivity (volts/division) control.
If the ground level is off screen, the waveform will expand about
the top or bottom edge of the screen based on where the ground
is off screen.
Expand About Center The displayed waveform will expand
about the center of the display.
To set the waveform expansion reference point
Press Utility&Options&Preferences&Expand and select Ground or
Center.