Keysight Truevolt Serie Mode D'emploi page 123

Features and Functions
Trend Chart (Continuous Measurement Mode)
This topic describes trend chart behavior for the 34461A/65A/70A only, in Continuous measurement
mode. The trend chart is not available for the 34460A.
To select the trend chart, press [Display] followed by the Display softkey:
In the Continuous measurement mode, the trend chart shows data trends over time:
Data is collected and displayed in pixel columns as described below.
Recent/All
The Recent/All softkey shows either all of the data in the trend chart (All) or just the most recent data
(Recent). Neither selection clears reading memory.
In All mode, the trend chart displays all readings being taken and builds from left to right. After the dis-
play 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. For the
34465A/70A, this time is selected with the Time Window softkey (1 minute to 1 hour). For the 34461A,
this time is fixed at 1 minute, and there is no Time Window softkey. Changing this setting clears the trend
chart but does not clear reading memory, statistics or histogram data.
Pixel Columns
The trend chart display area is 400 pixels wide by 147 pixels high. A pixel column is 1 pixel wide by 147
pixels high. Each pixel column on the trend chart display represents 1/400 of the Time Window value; the
Time Window setting determines the amount of time represented by each pixel column as follows:
124 Keysight Truevolt Series Operating and Service Guide