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3 Features and Functions
Trend Chart
In the Continuous measurement mode, the trend chart shows data trends over time. Data is collected and displayed
in pixel columns as described below:
Softkey
Recent/All
Vertical Scale
Default
Auto
Manual
Limits
Autoscale
Once
Clear Mon Data
Statistics
Hide/Show
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Description
The
Recent/All softkey specifies whether all measurements ( All ) or only the most recent measurements
(
Recent ) are shown on the trend chart. Neither selection clears reading memory. In All mode, the trend
chart displays all readings being taken and builds from left to right. After the display is filled, the data
becomes compressed on the left side of the display as new data is added on the right side of the display.
In
Recent mode, the trend chart displays data taken during a specified amount of time.
Default sets the scale to the measurement range.
Auto automatically adjusts the scale to appropriately fit the line currently shown on the screen.
Manual allows you to configure the scale either as High and Low values or as a Span around a Center
value. For example, a scale from a Low of 0 V to a High of 5 V is equivalent to a Center of 2.5 V and a Span
of 5 V.
Limits set the scale to the alarm limits.
This softkey is only available when you configure alarm on the selected channel
by pressing the [Alarm] key on the front panel.
Press
Autoscale Once softkey to automatically scale the trend chart's vertical axis one time based on the
scanned memory readings shown on the screen. This also sets the
Press the
Clear Mon Data softkey to clear the statistics, trend chart, and histogram on the monitor
channel.
The Clear Mon Data softkey will only be displayed when Statistics is set to Show.
Press the
Statistics softkey to toggle between Hide or Show the measurement statistics for the monitor
channel. Monitor channel statistics are cleared when monitor mode is turned on, when the monitor
channel changes, or when the monitor channel's configuration is changed.
Vertical Scale mode to Manual .
Keysight DAQ970A/DAQ973A User's Guide
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