6.3 Viewing Anomalous Phenomena (EVENT screen)
122
Select the event with the *I indicator in the Event List to display its inrush
current graph.
Pressing the up/down cursor keys switches the display sequentially
between events. The rms current fluctuation graph is calculated from each
half-cycle measurement (Irms 1/2). The event inrush current fluctuation
graph begins about 0.5 seconds before detection and continues to about
29.5 seconds after detection. The graph is drawn according to the selected
channel colors.
Displaying Detected Inrush Current Events
[INRUSH]
Select the screen.
Magnifying and Compressing Wave-
forms
The horizontal axis can be set to 0.5, 1, 2 or
5 sec/div.
To perform cursor measurement
Scrolls the graph horizontally
Cursor value
(Rms current on each
channel)
Cursor period
(Elapsed time from
event detection to
cursor position)
0.000 sec
Cursor period
To change time axis magnification
• Cursor period calculation is valid only for 50 or 60 Hz line frequency.
• The inrush current fluctuation graph displays rms current fluctuations.
Summary of Contents for 3197
Page 1: ...3197 POWER QUALITY ANALYZER May 2012 Revised edition 7 3197A981 07 12 05H Instruction Manual ...
Page 2: ......
Page 8: ...Contents vi ...
Page 30: ...1 3 Measurement Flowchart 22 ...
Page 44: ...2 5 Internal Operating Status and Memory Usage 36 ...
Page 86: ...4 6 Initializing the Instrument System Reset 78 ...
Page 134: ...6 4 Viewing Recorded Data REVIEW State 126 ...
Page 176: ...9 4 Disposing of the Instrument 168 ...
Page 199: ......
Page 200: ...3197 POWER QUALITY ANALYZER May 2012 Revised edition 7 3197A981 07 12 05H Instruction Manual ...