Statistical Values (A Only); Most Critical Values (A Only) - Fluke 1743 User Manual

PQ Log
Users Manual
Only those signaling voltages that have a defined limit value in the actual limit value
level file can be analyzed.
Frequency
The maximum value column shows the maximum and minimum deviation in percent as
related to the base frequency. To calculate the 95 %-value the absolute value of the
frequency deviation is used. The information about the mathematical sign is lost. So there
is only one 95 %-value. With symmetrically limited values (example, 1 %), the
maximum indicates the 95 %-value with a positive sign, and the minimum indicates the
same 95 %-value with a negative sign
With respect to the maximum value, the maximum and minimum is given in percent as
related to the frequency.

Statistical Values (A Only)

Shows the table summary of the measurement analysis.
A presentation of the statistical analysis of the most important measured values is
displayed.
Columns #1 to #3 contain the measurement parameter, the unit and the limit values
defined in the job or in limit value file.
Column #4 shows the percentage of the measured values which are within the limits and
the minimum and the maximum values which were detected during the whole measuring
period.
Column #5 gives the deviation between limit value and actual values.

Most Critical Values (A Only)

This screen displays the most critical values of the selected measurement parameters in
table form.
In the Most Critical Values screen, the time of the five most critical values (those which
come closest to the limit value) is given in addition to the numerical values.
Parameters such as voltage variations, interruptions, events, harmonics #3, #5, #7 and #9
thd V, flicker, frequency, and unbalance are checked because they are important for
practical power quality measurements.
All Exceedings (A Only)
Displays all exceedings from the standard of a measurement in table form.
All measured values are represented in a table form with time and value. The following
display shows how you can select any parameter you want to view in this analysis.
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1. Select Analysis>All exceedings.
2. Select the required parameters (for available parameters refer to the table in the
"Timeplot – Channel Selection options" section).