Reference Manual
Power Analyzer EMM5
Rev. 11
2018-07
10
Whenever a capital "M" is used as key symbol in any submenu, pressing the key will switch straight to
the main menu.
4.2
Measurement
This menu contains all measured values. The values are organised in several pages, which can be displayed on the LCD.
With the right key the user can additionally select between the active value ("TRMS"), minimum ("MIN") and maximum
("MAX"). For some measurement values the MIN / MAX selection is not possible.
The navigation through the values is quite easy: You can use the "
" and "
" keys to select the different pages. Press
one of the keys repeatedly to see all the values. If the last page is reached, the EMM5 continues with the first page.
Each value is displayed with its name (ULL, ULN, I, ...), its origin (L1, L2, L3, N) and the unit (V, A,...).
In addition to the measurement display, shows the EMM54 the rotation field of the system. The indicator for this is in
the row and shows “
“ for a clockwise rotation field and “
“ for anti clockwise rotation field. The rotation field can
also be used as an alarm source.
The EMM5 features an auto range-function: If a certain value becomes too big, the display automatically switches the
unit prefixes. For example: If the voltage exceeds 1000V, the display switches to 1.00 kV.
In the top right corner of the display, the status of all assembled output relays is shown. The relays are represented by
numbers. A dark number on bright ground shows a deactivated relay, a bright number on dark ground shows an
activated relay.
Devices with option –DM shows in the upper left corner the currently used tariff. The digital input is indicated by a “D”,
the active or inactive state is indicated as with output relays.
Use the “M”-key to switch back to the main menu at any time.
4.3
Auto-roll
This menu also contains all measured values. The values are organised in several “pages”, which can be displayed on
the LCD. This menu has a timer-controlled auto-roll mechanism. Every 10 seconds the display is automatically switched
to the next page. Additionally the keys "
" and "
" keys can be used to select the different pages.
4.4
Harmonics
The EMM5 calculates harmonics for the seven input channels (U-L1, U-L2, U-L3, I-L1, I-L2, I-L3, I-N). Harmonics are
displayed regarding EN 61000-2-4 from the fundamental wave (1st harmonic) up to the 62nd harmonic. The harmonics
are given in percent, each harmonic is standardized to the TRMS value. The harmonics are displayed in two columns:
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