SATEC EM920 Operation Manual - Manual (Page 34)

Chapter 3 Using Front Display
Display Operations
34 EM920 Power Quality and Revenue Meter
Indicator
Icon
Event
Priority
Description
Low General diagnostic message indicator: indicates
that there are diagnostic messages you can
inspect via the DIAGNOSTICS display.
The icon is shut down after you explicitly reset
diagnostics messages either from the display or
via communications (see
Clearing Device
Diagnostics ).
You can disable diagnostic message indicator via
the Display Setup menu (see
Display Setup ).
No Load/Power Flow Direction Indicator
The power flow indicator gives information on the load
presence and shows the direction of active power.
Indicator
Icon
Description
No load.
Direct active power flow – delivered active energy.
Reversed active power flow – received active energy.
Phase Presence Indicators
Phase presence indicators “ABC” show the status of either
Va-Vb-Vc phase-to-neutral voltages in line-to-neutral wiring
modes, or Vab-Vbc-Vca phase-to-phase voltages in line-to-
line wiring modes.
Indicator
Icon
Description
All voltages are present and above the voltage dip threshold.
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).
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
The EM920 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