Satec Expertmeter EM720 Operation Manual page 103

Chapter 5 Configuring the EM720
Samples per Cycle
Cycles per Series
Before Cycles
Num. of Channels
EM720 Power Quality and Revenue Meter
Number of Records = Number of Records per Series x Number
of Series
For example, if you want to record a 64-cycle
waveform sampled at a rate of 32 samples per
cycle, the number of records required for one
waveform series would be:
Number of Records per Series = (32 x 64)/512 = 4.
If you want to allocate space sufficient to store 20
waveform events (series), you should set up the
waveform log file for 4 x 20 = 80 records.
6. Click OK, and send your setup to the meter or save
to the site database.
To configure the waveform duration and sampling
rate for the file:
1. Point to the waveform file you wish to configure and
click "Setup Recorder", or click on the "Waveform
Recorder" tab.
The following table lists available waveform options.
Option Format/Range
32, 64, 128, 256, 1024
16-2560 at 32 samples/cycle
8-1280 at 64 samples/cycle
4-640 at 128 samples/cycle
2-320 at 256samples/cycle
1 at 1024 samples/cycle
1-20
1-6
Configuring Recorders
Description
Waveform sampling rate
Defines the total duration of the
waveform per event
Defines the number of cycles to be
recorded prior to event
The number of the simultaneously
recorded channels
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