E-Mon E-PS-E-RTU-N - Manual (Page 41)

Chapter 3 Using Front Display Display Operations
PowerSmart+ Power Quality Meter 41
Direct active power flow – delivered active energy.
Reversed active power flow – received active energy.
Phase Presence Indicators
Phase presence indicators “123” show the status of either V1-V2-V3
phase-to-neutral voltages in line-to-neutral wiring modes, or V12-V23-
V31 phase-to-phase voltages in line-to-line wiring modes.
Indicator
Icon
Description
123 All voltages are present and above the voltage dip threshold.
1 3
123
Blinking phase indicator – the phase voltage is below the
defined voltage dip threshold. Possibly indicates an incorrect
meter nominal voltage setting (see
Basic Meter Setup in
Chapter 5).
1–3
Dashed phase indicator - the phase voltage is either missing or
below the voltage interruption threshold.
If the phase voltage is below the defined voltage dip threshold, its
corresponding phase indicator is blinking.
If the phase voltage is either missing or below the voltage interruption
threshold, the phase indicator is replaced with a dash
Display Features
While energizing the device the display will show an init screen followed
by phase-voltages measurements as described below:
The PowerSmart+ PQM display has a number of programmable features
that can be disabled, enabled and adjusted via the meter Display Setup
(see
Display Setup in Chapter 5).
Backlight
A short press on any button while the display backlight is off switches the
backlight on.
The backlight stays on as long as you selected in the display setup and
then dims to conserve power. The backlight time is factory set to 1 minute
and can be programmed from 1 to 10 minutes. You can temporarily set
the backlight to continuous operation if you need to work in dark for more
time.
Contrast
The contrast can be adjusted via the meter Display Setup (see Display Setup
in Chapter 5).
Auto-Return
If the Auto-Return feature is enabled and no button is pressed for the
programmable Auto-Return interval (1 to 30 minutes for data displays;
fixed at 5 minutes for setup menus), the display automatically returns to
the default page from any other data display or a setup menu.