Carlo Gavazzi WM3-96 - Manual (Page 19)

▲ ▲
20
FIXED SELECTION: if, e.g., you set this value at
15 minutes, the instrument calculates and up-
dates the average of the variables (W-VA-PF)
every 15 minutes.
FLOAT SELECTION: if, e.g., you set this value at 15 min-
utes, the instrument at first calculates and updates the
average of the variable (W-VA-PF) after 15 minutes and then
every minute (fixed time).
See the diagram that shows the different operating methods
(FIXED and FLOAT) on the following page.
SYNCHRONIZATION OF THE FIXED OR FLOAT CALCU-
LATION
The synchronization of the FIXED or FLOAT calculation can
be carried out in three different ways:
• without the DIGITAL INPUT and RS232 + RTC modules:
the reset and the beginning of the synchronization is carried
out as soon as the instrument is powered on;
• with the installed DIGITAL INPUT module:
the synchronization begins when the digital input modules
change state (from ON to OFF or from OFF to ON). Any
following change of state will make the synchronization reset
and start all over again;
• with the RS232+RTC module:
the synchronization begins at the exact hour that follows the
switch on of the instrument (E.g.: if the instrument is switched
on at 10:25, the synchronization begins at 11:00).
In case both modules are installed (that is
digital inputs and RS232+RTC) the priority
will be given to the Digital Input modules.
Let’s start
CT ratio
15
13 21
Energy Meters Management
22