User's Manual

Analyzing Measurement Data
Analyzing Trend Data 6
6-3
6. After the transfer has finished, press the Analysis-Panel to front button to bring up the
main analysis window (see “PQ Analyze Overview” in Chapter 4).
6_5.bmp
Analyzing Trend Data
Three virtual instruments continuously measure trend data:
1. 10 Min
2. Free Interval
3. Day
While 10 Min and Day use fixed aggregation intervals, the Free Interval aggregation can
be set by the user between 10 seconds and 1 day.
10 Min is the basic aggregation required by various power quality standards like
IEC 61000-4-30 Ed.2 or EN 50160.
Day can be used for long-term load profiling and voltage trend monitoring.
Free Interval is a general-purpose instrument capable of being adapted to the respective
application requirements.
To analyze the measurement data, follow the procedure below.
1. Select the virtual instrument
2. Select start time
3. Select end time