HP 1660CS, User Manual

Page: 179 / 347

The Analyzer Waveform Menu
sec/Div field
When acquisition control is set to automatic, the sec/Div field affects the
sample period. Timing waveforms are reconstructed relative to the sample
period. A shorter sample period puts more sample points on the waveform
for a more accurate reconstruction but also fills memory more quickly.
If the sec/Div is changed resulting in a change in the next sample period, you
must run the analyzer again before the current sample period display is
updated. The sample period is shown in the second row from the top when
the markers are turned off.
Accumulate field
The Accumulate field controls whether old data is cleared or displayed along
with new data. The Accumulate field will toggle On/Off. When Accumulate is
on, the analyzer displays the data from a current acquisition on top of the
previously acquired data. When Accumulate is off, the display is cleared
before each new run cycle.
If you leave the Waveform menu, or pop up a menu over the waveform
display, any accumulated display data is lost and the accumulation process
starts over.
Delay field
Depending on the analyzer configuration, a positive or negative delay
measured in either states (State only) or time (Timing only) can be set. The
Delay field allows you to scroll the data and place the display window at
center screen. Changing the delay will not affect the data acquisition unless
it is a timing analyzer and the acquisition mode is automatic. In this case, the
sample period changes.
The delay range of a timing analyzer is from
−
2500 to +2500 seconds. The
delay range of a state analyzer is from
−
8192 to +8192 states.
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