Chapter 3 Using Front Display Data Display
PM130 PLUS Powermeter Series_Installation Operation and Manual 53
3.1.7 Navigation Buttons
The PM130 is provided with six push buttons that are normally used to navigate between different
measurement displays.
The function of buttons changes depending on what operating mode the display is in. In programming
mode, the buttons access the device setup menus where the default factory-set device settings can be
changed.
3.2 Data Display
In data mode, the display is normally updated once every second. You can adjust the display update rate
via the display setup (see Configuring the Display).
3.2.1 Display Features
Measurement Units
The PM130 PLUS has a selectable resolution for volts, amps and powers presented on the front display
and via communications. See Device Options in Chapter 5 for information on selecting the data resolution
in the PM130 PLUS.
Low Resolution Option
Currents are displayed in whole amperes below 10,000 A, and in kilo amperes above 10,000 A.
Measurement units for voltage and power depend on the voltage connection scheme:
• For direct wiring (PT=1) or wiring via PT with the PT ratio up to and including 4.0, voltages are
displayed in volts, and power in kilowatts.
• For the PT ratio above 4.0, voltages are displayed in kilovolts with three decimal places, and
power in megawatts with three decimal places.
High Resolution Option
Currents are displayed in amperes with up to two decimal places below 10,000 A, and in kilo amperes
above 10,000 A.
Measurement units for voltage and power depend on the voltage connection scheme:
• When direct wiring is used (PT=1), voltages are displayed in volts with one decimal place, and
power in kilowatts with three decimal places.
• When wiring via PT is used with the PT ratio up to and including 4.0, voltages are displayed in
volts, and power in whole kilowatts.
• For the PT ratio above 4.0, voltages are displayed in kilovolts with three decimal places, and
power in megawatts with three decimal places.
The small round “Kilo” and “Mega” LEDs light up showing the appropriate measurement units for a
displayed page.
Primary and Secondary Volts
Volts can be displayed in primary (default) or secondary units. The volts display mode can be changed
through the display setup (see Configuring the Display).
Phase Power Readings
In configurations with the neutral wire, in addition to total three-phase powers, the meter can show per-
phase power readings. By default, they are disabled. See Configuring the Display on how to enable per-
phase power readings in your meter.
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