E Bar Graph - Megger Baker AWA-IV User Manual

Baker AWA-IV Software Overview

E Bar Graph

The surge waveform graph is shown in the graphic below. The vertical (y-axis) displays the voltage while the
horizontal (x-axis) displays time. The surge waveform is a plot of the voltage across a coil versus time. On the right
side of the graph is a bar graph with an E label at the top. This bar graph will rise as the energy is increased by the
analyzer to create the displayed waveform.
Effectively, the energy bar graph shows how far down the footswitch pedal must be pressed to obtain the surge
waveform (when the footswitch accessory is used). Low impedance coils (those with only a few turns) require more
energy in the surge pulse to develop a given voltage than a higher turn count coil. The E bar graph gives you an idea
of how hard the analyzer is working.
The voltage readout seen just above the waveform (shown as 2040 in this example) shows you the voltage level as
you increase the voltage with the footswitch or Voltage Output Control knob.
68 Baker AWA-IV 71-015 EN V16 User Guide
Fig 73: Surge waveform window.
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