of record occupies the least memory space. Internal memory stores
approximately 40 sets of standard data.
Harmonic data
incorporates all of the features of standard data but
includes harmonic information from Channel 1 and 2 signals. Press
the LOG DATA key anytime while displaying harmonics to log data.
Because harmonic data uses more memory space than standard data,
internal memory stores approximately 10 sets of harmonic data, if
not currently storing any other type of data.
Waveform data
includes standard data, harmonic data, plus a
record of waveforms present on Channel 1 and 2. Press the LOG
DATA key, while displaying waveforms, to record waveform data.
Because waveform data recording uses the most memory of any of the
three data types, internal memory stores about 7 waveform displays
if not currently storing any other type of data.
3-phase data
includes all the data presently on the 3-phase
display.hen the Model 931A captures a data record, it displays a
momentary message in the lower right-hand corner. The message
confirms that the data was saved and shows the assigned record
number. Because any of the four different types of data may be
recorded at any time, the total number of records saved will vary.
3.10.2
Reviewing Data
Review stored data records by using the second function of the LOG DATA
key. Press SHIFT then REVIEW to view a screen similar to the following:
This display shows that there are 7 data records, with 97% of the
allotted memory space remaining. The first 6 data records are shown. To
view the remaining record(s) scroll down with the down arrow key.
To view a particular record scroll the cursor to that entry and press
the ENTER key. All of the same values present at the time of recording
will appear. Use the top row of keys in the main keyboard to look at the
different parameters of the stored data record. These parameters are as
follows: Volts, Amps, Phase, Frequency, Watts, Vars, Volt-Amps, Power
Factor, Timer, Transducer and CH1/CH2 Data.
The Model 931A also displays harmonics, waveform, or 3-phase data if
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