Acquisition – Teledyne LeCroy LabMaster 9Zi-A User Manual

Page 231

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Getting Started Manual

922157-00 Rev A

223

Acquisition

Access the Acquisition preference settings in the following manner:

1. On the Offset Setting constant in area of the dialog, touch either the

Div or Volts button.

As you change the gain, this control allows you to either keep the
vertical offset level indicator stationary (when Div is selected) or to
have it move with the actual voltage level (when Volts is selected).
The advantage of selecting Div is that the waveform remains on the
grid as you increase the gain; whereas, if Volts is selected, the
waveform could move off the grid.

NOTE:

Regardless of whether you select Volts or Div, the Offset shown in

the channel setup dialog always indicates volts. However, when Div is
selected for the Offset Control, the offset in volts is scaled proportional to
the change in gain, thereby keeping the division on the grid constant.

2. On the Delay Setting constant in area of the dialog, touch either the

Time or Div button.

As you change the timebase, this control allows you to either keep
the horizontal offset indicator stationary (when Div is selected) or to
have it move with the trigger point (when Time is selected). The
advantage of selecting Div is that the trigger point remains on the
grid as you increase the timebase; whereas, if Time is selected, the
trigger point could move off the grid.

NOTE:

Regardless of whether you select Time or Div, the Delay shown in

the timebase setup dialog always indicates time. However, when Div is
selected for Delay In, the delay in time is scaled proportional to the
change in timebase, thereby keeping the division on the grid constant.

3. If this checkbox control is available on your oscilloscope, you can

mark the Reset trigger counter before starting a new acquisition
checkbox on the Trigger Counter Setting area of the dialog.

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