Chapter 3 Using Front Display Indicators and Controls
PM130 PLUS Powermeter Series_Installation Operation and Manual 52
3.1 Indicators and Controls
3.1.1 Device Diagnostics
After applying power to the meter, a one-digit start-up diagnostic code is shown for 1 second on all LEDs.
Code 8 indicates a normal power-up sequence. You can observe the list of device diagnostic codes
recorded during restart and meter operation via the Status Display.
When the meter records a diagnostic message, the diagnostic “i” LED flashes until you reset the device
diagnostics via the Status Display. The diagnostic LED can be disabled or enabled through the display
setup (see Configuring the Display).
3.1.2 Numeric LED Display
The meter has a simple user interface that allows you to view numerous measurement parameters by
scrolling through different display pages. The numeric LED display shows up to three parameters at a time.
Small rectangular or round LEDs at the right and below the display indicate the displayed parameters and
their measurement units.
The display layout may change depending on the meter type and mode of operation.
There are three modes of display operation:
• Data display
• Status display
• Programming mode display.
3.1.3 Load Bar Graph AC mode
The load bar graph displays the amount, in percent (40% to 110%), of the present current load with respect
to user-defined nominal load current. The reference nominal current can be set up in amps through the
display setup (see Configuring the Display). If it is set to 0 (default), the current load is referenced to the
specified CT primary current.
3.1.4 Load Bar Graph DC mode
The load bar graph displays the amount, in percent (12.5% to 100%), of the present current load with
respect to user-defined nominal load current. The reference nominal current can be set up in amps through
the display setup (see Configuring the Display). If it is set to 0 (default), the current load is referenced to
the specified CT primary current.
3.1.5 Energy Pulse LED
The PM130E and PM130EH have a red “Energy Pulse” LED. It flashes at a constant rate when a load is
applied to the meter.
There are two modes of LED operation:
• NORMAL mode: the LED pulses indicate imported Wh at a rate of 1,000 pulses per kWh
• TEST mode: the LED pulses indicate either imported Wh, or imported (inductive) varh at a rate
of 10,000 pulses per kWh/kvarh
The energy test mode can be enabled through the Device Options setup. When in test mode, the energy
and demand accumulators do not account for consumed energy.
3.1.6 Port Activity LEDs
The meter has two green LEDs “RX” and “TX”, which indicate activity on the COM1 communication port.
The LEDs flash when the port is receiving or transmitting data.
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