Features and Functions 3
Keysight 34420A User’s Guide 113
Chart Rollover
To prevent the loss of data, the chart output will “rollover” if a measurement would
cause the chart output to exceed the limits (± 3 V). This feature is especially useful
with strip chart recorders.
Rollover can be used to increase the resolution of the chart since smaller values of
span can be specified. As smaller values of span are used, chart rollover will occur
more frequently.
Rollover occurs when a chart limit is exceeded. The chart output voltage rolls over
to the opposite limit. The result, on a strip chart, is a step from one limit to the
opposite limit, effectively shifting the chart range and center values. By counting
the steps and noting their direction, the actual measurement values can be
deduced.
To Next Page
Loading...
