Model 930A measures all the basic quantities: true-rms
voltage and current, frequency and phase angle, as well as
power quantities such as watts (W), watthours (Wh),
volt-amperes (VA), volt-ampere hours (VAh), volt-amperes
reactive (VAR), volt-amperes reactive (VARh), and power
factor (PF), all with 0.11% basic accuracy.
Measure harmonics and view the results graphically on the
high contrast 240 x 64 graphic display. The two channels are
normalized to Channel 1 fundamental phase, so you can see,
for example, the relationship between current waveform
distortion and voltage phase.
The 930A include a full three-phase input section, for
automated three-phase measurement sequences, complete with
multiple display modes:
Vector Display ― View
voltages, currents and phase angles with their vector
Voltage /Current Sequence Display
― view voltage, current and phase along with positive,
negative and zero sequence values.
Energy Display ― view voltage, current, phase,
frequency and energy quantities on one convenient display.
Supports two main measurement channels. Channel 1 and
channel 2. Any voltage or current input signal may be
selected for either channel. For basic measurements
(voltage, current, frequency, phase angle) any combinations
of inputs may be used. For power and energy measurements
(active power, apparent power, reactive power and power
factor), one voltage and one current must be selected. For
three-phase measurements, the input configuration is
selected automatically, based on the measurement type (foe
example, 3-phase 4-wire 3-element).