DMD values
Average value calculation (dmd)
EM530 and EM540 calculate the average values of the electrical variables within a set integration interval (15 min by default).
Integration interval
The integration interval starts at switch-on or when the reset command is issued. The first value is displayed at the end of the first
integration interval.
Example
The following is a sample integration:
• reset at 10:13:07
• set integration time: 15 min.
The first value displayed at 10:28:07 refers to the interval from 10:13:07 to 10:28:07.
LCD display
Home page
The unit may display the default measurement pages after no operation has been performed for five minutes, if the screensaver
is enabled and the screensaver type is as "Home page" (default value).
Notes: if you select a page that is not available in the set system, the unit displays as its home page the first available page. In
MID models the home page cannot be changed and displays the active energy meter.
Backlight
EM530 and EM540 are equipped with a backlight system. You can set whether the backlight shall always be ON or whether it
should automatically switch off after a given interval has elapsed since a button was pressed (1 to 60 minutes).
Screensaver
If the SCREENSAVER function is enabled (default setting), after 5 minutes have elapsed since a button was pressed the unit will
display the home page if the screensaver type is "Home page" (default setting), or it shall activate the slideshow function, which
displays the selected pages on a rotating basis.
Notes: In MID models the screensaver setting is "Homepage" and cannot be changed.
Page filter
The page filter makes it easier to use and browse the measurement pages. When you use the
only display the pages you are most interested in, which can be selected through the UCS software (S1 version) or is pre-defined
(O1 and M1 version)
Note: to display all the pages without using the UCS software, you can disable the page filter from the SETTINGS MENU
(DISPLAY → PAGES→ ALL). By default, the pages included in the filter are: 1 (kWh+ TOT, kW), 2 (kWh- TOT, kW), 5 (VLN, VLL,
Hz), 7 (kvarh+ TOT, kvar), 8 (kvarh- TOT, kvar), 25 (L1 A, L2 A, L3 A), see "Measurement pages" on page 13.
Essential information
buttons, the unit shall
EM530/EM540 - User manual | CARLO GAVAZZI Controls SpA
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