ZES ZIMMER LMG450, Руководство пользователя

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Z E S ZIMMER Electronic Systems GmbH Chapter 6
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Figure 33: Long time evaluation of harmonics
Below the softkeys you see the total evaluation of the measurement. If any current harmonic
has violated the standard at any time or the differences between control and measured values
of power (class D) or of current and power factor (class C) were more then 10% (only for
A14) you have ‘Test I
8‘. If any voltage harmonic or the amplitude or the frequency have
violated the standard you have ‘Test U
8‘. The printing and logging of this menu is only
possible in single mode (see 4.4.2.1, ‘Interfaces for remote control’) and with ASCII format.
6.4.6 Graphical display
With Graph you see the graphical display of the prCE measuring mode. Also in this menu we
have the group concept. With the rotary knob you can select different tabs (‘Spectrum A’ and
‘Spectrum B’).
6.4.6.1 Spectrum A/B
The settings in group A and B are identical, so they are just described once.
The graphical display of the voltage, the current and the limits of the harmonics. On the left
side you see for each graph signal value (yn), the limit value (yl) at cursor position, the scaling
of the y-axis (dy) and the zoom of the y-axis (zm).
If you have logarithmic display, the dy value specifies the signal level at the top line. The lower
lines have each a tenth of the upper ones.
Graph Here you can select one of the four possible display channels.
Signl Defines the signal for this display channel. Possible values are (for each channel):
U The voltage harmonics
LU The limits of the voltage harmonics and the voltage harmonics
I The current harmonics
LI The limits of the current harmonics and the current harmonics