11
LC display
The LZQJ-SGM is equipped with a liquid crystal (LC) display as per
VDEW specifications 2.1.
1. The
operation display
shows the energy direction that is currently
being measured by the meter (export/import of active power,
inductive/capacitive reactive power). If a load current is flowing,
the energy direction arrow indicates which quadrant is being used
for the measurement, e.g.:
1st quP/+Q
3rd quadrant
−
P/
−
Q
2nd quadrant
−
P/+Q
4th quP/
−
Q
2. The
battery status indicator
shows the residual capacity of the
internal power reserve of the real time clock.
= Full power, the real time clock is buffered in this instance
= Power reserve run-down, internal battery is empty or not
available. In this instance, the real time clock cannot be
buffered.
3. The
communication display
lights up permanently when the data
interface (optical or electrical) and the meter are communicating.
It flashes when parametrisation mode is active.
4. The
phase display
indicates when individual phase voltages are
applied. All 3 symbols flash when the rotating field is wrong.
