Fluke 6135A/PMU, Руководство оператора

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Interactive Graphs, Results, and Reports
Measurement Latency Test Results
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Measurement Latency Test Results
The Measurement Latency Test presents the results as a table (see Figure 7-12).
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Figure 7-12. Measurement Latency Test Results Table
The Max Latency result is the measurement of interest in a Latency test. The other
values, (Min, Mean and Standard Deviation), provide an indication of the spread of the
values within the measurement epoch.
Ideally, every measurement should be transmitted by the PMU immediately after it has
completed so that each data frame received by the Server PC contains just one
measurement. Some PMUs may group two or more measurements together and transmit
them as a block. This can have a large effect on the Maximum Latency measurement
because Latency is measured from the timestamp of the first measurement in the block to
when the complete block has been received by the Server PC after the last measurement
in the block has completed. The table on the Latency Results screen provides an
indication of when this might have happened by showing how many data frames
contained a certain number of PMU measurements.