LeCroy HDO6000, Руководство оператора

Страница: 19 / 142

Operator's Manual
Pre/Post-trigger Delay - A small arrow to the bottom left or right of the grid indicates that a pre-
or post-trigger Delay has shifted the Trigger Position indicator to a point in time not displayed
on the grid. All trigger Delay values are shown on the Timebase Descriptor Box.
Trigger Level - This small triangle at the right edge of the grid tracks the trigger voltage level. If
you change the trigger level when in Stop trigger mode, or in Normal or Single mode without a
valid trigger, a hollow triangle of the same color appears at the new trigger level. The trigger
level indicator is not shown if the triggering channel is not displayed.
Zero Volts Level - This indicator is located at the left edge of the grid. One appears for each
open trace on the grid, sharing the number and color of the trace.
Various Cursor lines appear over the grid to indicate specific voltage and time values on the
waveform. Touch-and-drag cursor indicators to quickly reposition them.
Signal Display Grid Pop-Up Menu
Touching/clicking a trace opens a pop-up menu with shortcuts to the appropriate trace setup dialog, or
the Math and Measure setup dialogs. You can also use it to turn off the trace or place an annotation label
on it.
Descriptor Boxes
Shown just beneath the grid display, these boxes provide a summary of your channel, timebase and
trigger settings. They also act as convenient navigation tools.
Descriptor boxes appear when a trace is turned on. Touch the descriptor box once to activate the
corresponding trace. Touch the descriptor box a second time to open its corresponding setup dialog.
When a trace is active, its corresponding descriptor Box is shown highlighted, and Front Panel controls
will work for that trace.
Highlighted descriptor box (left) is active. Controls will work for this trace.
Channel Descriptor Box
Channel trace descriptor boxes correspond to analog signal inputs. They show
Vertical settings and any cursor selection: (clockwise from top left) Trace Number
(Cx), Pre-Processing List (summarizes changes from default state), Coupling, Gain
Setting, Offset Setting, and Averaging Sweeps Count.
Codes are used to indicate pre-processing that has been applied to the input. The codes have a long and
short form. When several processes are in effect, the short form is used.
922499 Rev B
11