Trendplotting A Waveform - Fluke 123 User Manual

Fluke 123/124
Users Manual

TrendPlotting a Waveform

The TrendPlot™ function plots a graph derived from the
MAIN (large) readings in the SCOPE mode or in the
METER mode as a function of time. The secondary (small)
reading shows: the average (AVG) reading and the date
and time, or the minimum (MIN) or the maximum (MAX)
reading since the TrendPlot start and the date and time
of the most recent change.
Starting a TrendPlot™ function
Open the INPUT A menu.
Start TRENDPLOT.
The test tool records the minimum (MIN) reading as the
main (upper displayed) measurement of input A. The date
and time stamp appear below the MIN reading. (See
Figure 1-13.)
The test tool also continuously logs all readings to memory
and displays these as graphs. Automatic vertical scaling
and horizontal time compression resizes the TrendPlot to
fit on the screen. The TrendPlot is built up on the screen
from left to right until the screen is full. The automatic time
scaling then compresses this information to about half the
screen.
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Figure 1-13. TrendPlot Reading
Note
When a new minimum value is detected , a beep
occurs and the new minimum is displayed.