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User Manual
19
© Electronic Systems Protection, Inc. / 03.08.13 / espei.com
/
nextgenpcs.com
8. Graph Overview
a. Graph Control
i. The graphs used to display the recorded power quality events (normal mode)
and line voltage (Enhanced Logging Mode) contain Zoom, Cross Hair, and
Drag functions that are useful when analyzing data:
Legend: Press the L icon to display the Graph Legend to show the
values of the Time Stamped data. Pressing the icon again toggles the
legend off.
Zoom: Press the magnifying glass icon to enable Zoom mode. Pressing
the icon again stops Zoom mode, and restores the graph to its full
display scale.
Cross Hair: Turns the cross hair on and off.
Drag: Enables/Disables Drag mode. When in Drag mode, press and
hold the left mouse button somewhere on the graph, and move the
mouse. The graph will be dragged in the corresponding direction.
ii. Several control buttons are available below the graphs, depending on which
mode is active:
1.
G1/G2: Toggles between Graph 1 (recorded power quality events) and
Graph 2 (line voltage). Available after entering Enhanced Logging Mode.
2.
**/--: Toggles the data display of Graph 2 (line voltage) between linear
and discrete data points. Available when Graph 2 is visible.
3.
Stop: Stops Enhanced Logging Mode. Available after entering Enhanced
Logging Mode.
b.
Graph Data
i. Power Quality Events Graph
1. Overview
a. The recorded power quality events graph displays the time-
stamped power quality events (up to 60) recorded and stored
in the Next Gen PCS Filter
’s internal memory. The events are
plotted as individual data points.
b. While the events are time-stamped in the Next Gen PCS
Filter
’s internal memory by the elapsed time since the previous
recorded event, they are plotted on the graph with an
estimated date and time, based on the connected c
omputer’s
Windows system time. The duration of a power outage is not
recorded, so the date and time of events prior to and including
the most recent power outage may not be accurate. Events
with an accurate estimated date and time are plotted with a red
circle; events with a possibly inaccurate date and time are
plotted with a black circle; the time the computer was
connected is plotted with a blue square.
Summary of Contents for NEXT GEN PCS 120
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