Utility Settings 19
Agilent InfiniiVision 3000 X-Series Oscilloscopes User's Guide 289
You do not need to "eject" the USB mass storage device before removing it.
Simply ensure that any file operation you've initiated is done, and remove
the USB drive from the oscilloscope's host port.
Do not connect USB devices that identify themselves as hardware type
"CD" because these devices are not compatible with the InfiniiVision
X-Series oscilloscopes.
If two USB mass storage devices are connected to the oscilloscope, the
first one is designated "\usb" and the second one is designated "\usb2".
See Also • Chapter 17, “Save/Recall (Setups, Screens, Data),” starting on page 263
Setting Oscilloscope Preferences
The User Preferences Menu (under [Utility] > Options > Preferences) lets you
specify oscilloscope preferences.
• "To choose "expand about" center or ground" on page 289
• "To disable/enable transparent backgrounds" on page 290
• "To load the default label library" on page 290
• "To set up the screen saver" on page 290
• "To set AutoScale preferences" on page 291
To choose "expand about" center or ground
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.
To set the waveform expansion reference point:
1 Press [Utility] > Options > Preferences > Expand and select:
• 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.
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