Power Quality Analyzer Model 3945-B
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The energy over a selected period can be calculated from the average power records:
• Move the cursor to the start time.
• Press the
function button.
• Move the cursor with
buttons to the desired end time.
• The energy value is displayed, with
end date and end time
.
It is possible to make an energy measurement over several recording ranges in
the 4 quadrants.
All of the data in a recording session can be downloaded to a com-
puter using the DataView
®
software.
The
and
buttons allow the integration period of the displayed measure-
ment and the graph time-scale to be changed.
Display Averaging Period
Graph Scale
2 hours
over 5 days
1 hour
over 2 1/2 days
15 minutes
over 15 hours
10 minutes
over 10 hours
5 minutes
over 5 hours
1 minute
over 1 hour
20 seconds
over 20 minutes
5 seconds
over 5 minutes
1 second
over 1 minute
NOTE:
The minimum integration period is limited by the recording period. The
recording integration period of 2 minutes is a special case. In this case, only the fol-
lowing display integration periods are possible: 10 minutes, 1 hour and 2 hours.
5.7 Saving a Display
This button allows 12 snapshots to be saved for future recall and evaluation.
• Press the
button (for about 3s) to capture the current display.
• The
icon is displayed in the top left corner as soon as the operation
is successful.
• This icon is replaced by
if there is no space left in the memory to
record the display.
These screens can be downloaded to a computer using the DataView
®
software.