Arbiter Systems 931A, Operation Manual

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3.11.5.5 Harmonic Data
The Model 931A exports harmonic data when the print operation is
executed. This occurs while performing measurements in the harmonic
display mode, or reviewing stored data while in that mode.
Harmonic data differs from most of the other data types, in that it is
a tabular format consisting of 49 records. Each record contains data for a
single harmonic, up to the 50th. The format for the data is as follows:
log data #, date, time, CHx select, THD, K factor
C
“”, ””, ””, harmonic 2 amplitude ,harmonic 2 phase
C
“”, ””, ””, harmonic 3 amplitude, harmonic 3 phase
C
. . .
C
. . .
C
“”, ””, ””, harmonic 50 amplitude, harmonic 50 phase
C
Log Data #: A number assigned to the data record. If
the data was stored prior to print/export, this
number will correspond to the record number
assigned when stored. If the data is printed or
exported directly, this number will always be
zero.
Date: An integer, corresponding to the date, which
is the standard format for dates in spreadsheet
applications. The integer for the date is deter-
mined from the following:
1/1/1600 = -109,571
12/30/1899 = 0
1/1/95 = 34700
12/31/3199 = 474,816
Time: A decimal fraction of 1, corresponding to the
time of day, which is the standard format for
time in spreadsheet applications. This number
is determined by the formula:
N = S/86400, where:
S = number of seconds elapsed since midnight.
CH X Select: Indicates the input configuration for the mea-
sured harmonic data.
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