Teledyne LeCroy HDO 4000 Operators Manual - Manual (Page 46)

HDO4000 High Definition Oscilloscope
V IEW S EGMENT T IME S TAMPS
To view time stamps for each segment:
1. From the menu bar, choose Timebase → Acquisition Status or Vertical → Channel Status.
2. Touch the Trigger Time tab.
3. Under Show Status For, choose Time .
4. In Select Segment, enter the segment number of interest.
You can also touch the Up/Down Arrow buttons to scroll through segment times.
Set Reference Clock
By default, the oscilloscope is set to use its internal clock of 10 MHz as the Timebase reference to
synchronize acquisition across all channels.
You can opt to use an external reference clock for this purpose. Connect the clock source to the REF IN
input on the back I/O panel of the oscilloscope using a BNC cable. Then, go to Timebase > Timebase
Setup > Reference Clock tab and choose External.
Auto Setup
Auto Setup quickly configures the essential oscilloscope settings based on the first input signal it finds,
starting with Channel 1. If nothing is connected to Channel 1, it searches Channel 2 and so forth until it
finds a signal.
Vertical Scale (V/div), Offset, Timebase (Time/div), and Trigger are set so that there is an Edge trigger on
the first, non-zero-level amplitude, and the entire waveform is visible for at least 10 cycles over the 10
horizontal divisions.
To run Auto Setup, you can either:
l
Press the Auto Setup Front Panel button.
l
Choose Auto Setup from the Vertical, Timebase, or Trigger menus. All these options perform the
same Auto Setup function.
To confirm Auto Setup, press the Auto Setup button again or use the touch screen display.
Restore Default Setup
Restore the oscilloscope to its factory default state by pressing the Front Panel Default Setup button. You
can also restore default settings by choosing File > Recall Setup > Recall Default.
Default settings for your oscilloscope include the following:
Channel/Vertical C1-C4 on at 50 mV/div Scale, 0 V Offset, Linear Interpolation
Timebase Real Time Sampling at 50 ns/div, 0 Delay, 1.25 kS at 2.5 GS/s, 1.0 MS Memory
Trigger C1 with an Auto Positive Edge, DC Coupling, 0 V Level
Display Auto Grid
Cursors Off
Measurements Cleared
Math Cleared
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