
Oscilloscope Overview and Set Up
Horizontal Controls
Turn the Delay knob to change the Trigger Delay value (S). Push the knob to reset Delay to zero.
If the trace source is an input channel, turn the Horizontal Adjust knob to set the Time/division (S) of the
oscilloscope acquisition system. The value is shown on the Timebase descriptor box. When using this control, the
oscilloscope allocates memory as needed to maintain the highest sample rate possible for the timebase setting. If
the active trace is a math, zoom or memory, use this knob to change the Horizontal Scale, effectively "zooming" in or
out. The value is shown on the corresponding descriptor box. Push the knob to adjust scale in fine increments; push
it again to return to stepped increments.
Vertical Controls
The Offset knob adjusts the zero level of the trace (this makes it appear to move up or down relative to the center
axis of the grid). The value appears on the trace descriptor box. Push it to reset Offset to zero.
The Vertical Adjust knob sets Vertical Gain (V/div) for channel traces or Vertical Scale for math, zoom and memory
traces. The value appears on the trace descriptor box. Push the knob to toggle between fine and stepped
increments.
The Channel buttons (1-8) turn on a channel that is off, or activate a channel that is already on. When the channel is
active, pushing its channel button turns it off. A lit button shows the active channel.
The Zoom (Z) button creates a Quick Zoom of each open trace.The resulting zoom traces are 1/10 of the source
channel scale and centered on the display. Use the Horizontal knobs to adjust this, or touch the zoom descriptor box
twice to display the zoom dialog controls. Touch the Zoom button again to turn off the zooms.
The Digital (D) button enables digital input on instruments with Mixed Signal capabilities.
Math, Zoom, and Mem Indicators
These LEDs light to indicate when a type of trace other than an input channel is currently active and controllable
using the Front Panel. Touch a trace descriptor box to make it active and controllable.
Cursor Controls
Cursors identify specific voltage and time values on the waveform. The white cursor markers help make these points
more visible, as well as provide a simple way to reposition them by dragging-and-dropping. A readout of the Vertical
values appears on the trace descriptor box, while the Horizontal values appear below the Timebase descriptor box.
There are five preset cursor types, described in more detail in the Cursors section.
Press the Cursor Type button to apply or remove cursors. Continue pressing to cycle through all cursor types until
the desired type is found ("Off" occurs when no cursors are visible).
Turn the Coarse knob to adjust the position of absolute cursors (dashed-dotted lines). Push it to return the cursor to
the default 2.5 division setting. If you're using the Both Rel cursor type, each push will toggle between the Horizontal
and Vertical absolute cursors. With the correct cursor selected (highlighted), turn the knob to adjust the position.
Turn the Fine knob to adjust the position of relative cursors (dashed lines). Push it to return the cursor to the default
7.5 division setting, or to select the other relative cursor when using the Both Rel cursor type.
When a numeric value field is selected, these knobs serve as the Adjust knobs. Turn the Coarse knob to make 1-, 2-,
5-, 10-stepped adjustments; turn the Fine knob to make single-increment adjustments. Push either knob to return to
the default setting. When a waveform trace is selected (by touching the descriptor box or the trace itself), Coarse
and Fine increase/decrease trace intensity.
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