ZES ZIMMER LMG450, User Manual

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Z E S ZIMMER Electronic Systems GmbH Chapter 5
91
average reactive power:
∑
=
=
N
n
n
s
s
T
EQ
Qm
0
average apparent power:
∑
=
=
N
n
n
s
s
T
ES
Sm
0
All this calculation are in accordance with DIN40110.
5.4 Display of values
For the display of the values you can choose several menus. Also in this menus we have the
group concept. With the rotary knob you can select the desired group. Now you can have four
softkeys (maybe not all appear, depending on the selected wiring, the group and installed
options):
Chns By this you can select, which channel you want to see. A second softkey bar appears,
where you can select the channel.
Link Here you can select which linked channel you want to see (only if option L45-O6 star
to delta conversion is installed).
Sum Here you can select the total values of the group (over several channels).
Displ Here you can setup if you want to see few values in a big font or more values in a
smaller font. This softkey may be inactive, if you watch several channels.
Above the displayed values you see a header which describes in several fields, what you see:
Chnx You see the values from the measuring channel x. This is always a measuring
channel from the rear side of the instrument.
Linkxy You see the values of a linked channel. xy are the channels which are used to
calculate the value.
SUM(x-y) You see the values of a sum channel. x and y are the first and last channels which
are used to calculate the value
(x,y) This field is optional. It shows you, which values of your circuit are displayed on
this channel.
n:x It belongs to group n. x is the number of the display channel. You have to use
this number (together with the ‘:’!) for example in the script editor or in the
computer interface.