Alstom iSTAT M355, Руководство пользователя

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M3x5/EN M/B User Manual
Page 102
iSTAT M3x5
The main window is divided into two parts. Upper part shows information about recorded
periodic PQ reports and lower part shows detailed information about the selected PQ report.
For each of the monitored parameters it is possible to display an anomaly report. This
represents a complete list of accurately time stamped measurements that were outside the
PQ limit lines.
FIGURE 12-16: DETAILS OF ANOMALIES FOR MONITORED PARAMETER
12.4.7 Flagged data evaluation
Flagged data represent data (recorded events) that have been flagged (marked) according
to the flagging concept defined in IEC 61000-4-30.
Flagged data are power quality records, which has been influenced by one or more voltage
events (interruptions, dips, swells).
The purpose of flagging data is to mark recorded parameters when certain disturbances
might influence measurements and cause corrupted data. For example, voltage dip can also
trigger occurrence of flicker, interharmonics, etc. In this case all parameters which were
recorded at the same time as the voltage dip event are marked (flagged).
PQ report will omit or include flagged data according to appropriate setting.
PLEASE NOTE
Regardless of the Flag setting, readings will always be stored in the recorder and available
for analysis. Flagging only influences PQ reports as a whole.