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two harmonics are identified by the suffices "1" and "2" respectively.
Output
Description
Numeric Displays only:
R
%
Resultant (Magnitude) output, harmonic 1, %FS
1
R
%
Resultant (Magnitude) output, harmonic 2, %FS
2
N
%
Noise output about harmonic 1, % FS
1
N
%
Noise output about harmonic 2, % FS
2
°
Phase output, harmonic 1, in degrees
1
°
Phase output, harmonic 2, in degrees
2
X
%
X channel output, harmonic 1, % FS
1
X
%
X channel output, harmonic 2, % FS
2
Y
%
Y channel output, harmonic 1, % FS
1
Y
%
Y channel output, harmonic 2, % FS
2
R
Resultant (Magnitude) output, harmonic 1, in volts or amps
1
R
Resultant (Magnitude) output, harmonic 2, in volts or amps
2
Numeric and Bar-Graph Displays:
X
X channel output, harmonic 1, in volts or amps
1
X
X channel output, harmonic 2, in volts or amps
2
Y
Y channel output, harmonic 1, in volts or amps
1
Y
Y channel output, harmonic 2, in volts or amps
2
N
Noise output about harmonic 1 in volts or amps per root hertz
1
N
Noise output about harmonic 1 in volts or amps per root hertz
1
ADC1
ADC1 input, ±10.000 V full-scale
ADC2
ADC2 input, ±10.000 V full-scale
ADC3
ADC3 input, ±10.000 V full-scale
ADC4
ADC4 input, ±10.000 V full-scale
Bar-Graph Displays only:
MAG
Resultant (Magnitude) output, harmonic 1, in volts or amps
1
MAG
Resultant (Magnitude) output, harmonic 2, in volts or amps
2
PHA
°
Phase output, harmonic 1, in degrees
1
PHA
°
Phase output, harmonic 2, in degrees
2
Table 5-4, Output Display Choices - Dual Harmonic Mode
The additional outputs may be stored to the curve buffer, but only when the curve
selection is made via the computer interface. The Curve Select menu only allows
selection of the same sixteen data types as in single reference mode.
When in dual harmonic mode, the user-defined equations, specified on the Output
Equations menu (see section 5.3.08), allow the selection of the additional outputs as
variables. For example, it is possible to calculate a value proportional to the ratio of
the X
channel output to that of the X
1
be output to one of the DAC connectors on the rear panel of the main console as an
analog voltage.
Note: Unless both the 7124 Main Console AUX input and one of the 7124 RCU's
inputs are being used as signal inputs, the signals at the two harmonics that are
being measured share a common signal path and hence controls affecting the
signal channel, such as signal source, AC Gain and the line filter controls, apply
Chapter 5, FRONT PANEL OPERATION
channel output. With suitable scaling, this can
2
5-83
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