EMA-D9 - USER MANUAL
-35-
The tenth visualization group of
time bands shows the total time
band energy counters. It’s
displayed after the previous group pressing the UP key.
Pressing repeatedly the RIGHT key in all the group it’s possible to display the active and reactive
energy pages of the other bands (P2, P3 and P4).
Using the LEFT key it’s possible to see another time the previous pages.
All of these pages Tutte queste pagine relative alla Timebands sono visibili solo se è inserito il codice
di abilitazione ACCESS relativo alle Timebands e fornito da Contrel Elettronica Srl.
Variable reading MIN & MAX values
12 pages (selected by “LEFT” and “RIGHT” keys) show minimum of
the value of 12 parameters taken after last reset.
12 pages (selected by “LEFT” and “RIGHT” keys) show maximum
of the value of 12 parameters taken after last reset.
Date and time of reading are displayed on these pages.
It’s possible to see the values of these parameters:
•
three - phase system voltage (
Σ
V
L-L
)
•
L1 phase voltage (V
L1
)
•
L2 phase voltage (V
L2
)
•
L3 phase voltage (V
L3
)
•
three - phase system current (
Σ Ι
)
•
L1 phase current (I
L1
)
•
L2 phase current (I
L2
)
•
L3 phase current (I
L3
)
•
three - phase system active power (
Σ
W)
•
three - phase system apparent power (
Σ
VA)
•
three - phase system power factor (
Σ
PF)
•
three - phase system average active power (
Σ
W
av
)
Warning. If the storage in ram is disabled, the minimum and the maximum displayed are absolute,
otherwise it’s relative at the sampling period set.
Variable reading total harmonic distortion and harmonic components of voltage and current.
The instrument has 3 groups of 17 visualization pages each of the THD and harmonic components (up
to 31
st
with fundamental at 50-60Hz) of the 3 voltages and 3 currents.
The values are displayed in
percentage. Every page shows the
value of voltage and the current of
the same line.
Using UP and DOWN keys the
user choose the voltage and
current line page (V-I L1, V-I L2,
V-I L3). Using the LEFT and
RIGHT keys it’s possible to display
the total THD value and the
harmonic components at couple
(00 and 01, 02 and 03 etc. up to
the couple 30 and 31.
These pages can be displayed only if in the instrument there is the ACCESS code supplied by
CONTREL Elettronica Srl for the THD.
