Eaton Power Xpert PXM 4000, User And Installation Manual

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Page 102
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7 Functions on the Graphical Display
7.2. Meter
The Meter screen(s) provide the user with Voltage, Current and Frequency readings. It allows the
user to view information by measurement type or by phase. Further details, such as trends, min/
max values and set triggers can also be reviewed.
VOLTAGE
The Power Xpert Meter measures line to line and line to neutral voltages and calculates rms values
over the period of 200 milliseconds. The system average values are calculated for main voltage
channels as well as Vaux.
NOTE: Systems with a Vaux option will provide only line to line voltages.
Symmetric components are available for main voltage channels; symmetric components are not
available for Basic and Vaux versions of the meter.
The Power Xpert Meter maintains a running log of all voltage rms measurements over the period
of 1 year with date and time stamps. This information is also available as a trend for display and
communications. The min, max and averages are recorded for each interval; 2 days at 5 minute
intervals, 31 days at 1 hour intervals and 12 months at 1 week intervals.
The most recent minimum and maximum values are detected for all the voltage channels and sym-
metric, and are logged with date and time stamps. Current minimum and maximum values can be
cleared by the user at any time. When the current values are cleared, the meter will begin calculat-
ing new minimum and maximum values.
LOCATING VOLTAGE INFORMATION
From the Meter Home Screen, highlight and select an underlined voltage option. A detailed voltage
screen will appear. Highlight and select the kind of voltage (Line to Line, Line to Neutral, Symmetric
Components or Vaux) you wish to view.
The screen will update to display the selected information. The user can access more details, such
as minimum and maximum values, trending, phasors, triggers, waveforms or harmonics via under-
lined text options.
The Line to Neutral Voltage Screen
MeterNine
Avg. LL Voltage:
0.176 A
Frequency:
The Meter Main Screen
480.2 V
Avg. Current:
277.3 V
277.2 V
277.2 V
0.9 V