74 User’s Manual
5.4.14 Real Time Noise Monitor
“N” key is used to enable and disable the Real Time Noise Monitor.
The Real Time Noise monitor provides a continuous monitor of the line noise. This
graph is very useful in determine line noise between shots.
The Y-axis needs to be selected to a fixed scale. This allows the bar graphs to show the
noise levels related to a fixed scale. If auto scale is selected, then the bar graphs show full scale
even when the noise level is very small.
Default scaling of the x and y axis is autoscale.
The scale should be changed to a fixed scale by right clicking the graph and selecting the
Axis menu.
Select the fixed y-scale so that the bar graphs are small for acceptable noise levels and the
bar graphs are large for high noise levels. This allows the operator to monitor the noise level on
the spread in real time. On some jobs with large cultural noise, the real time monitor is used to
time the trigger event for minimal noise levels.
Press “N” to disable the Real Time Monitor
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