MPI-540 ● MPI-540-PV – BRIEF USER MANUAL
Determination of network frequency f
n
that is the source of potential interferences, is necessary
in order to select a proper measuring signal frequency in resistance to earth measurements. This se-
lection ensures optimum interference filtering. The meter is designed for filtration of interferences
generated by 50 Hz and 60 Hz networks.
RCD EV measurement standard defines the parameters for measuring RCD protectors dedicat-
ed to the field of electromobility and photovoltaics.
Setting Auto-increment as active ( ) places each saved measurement in an auto-
matically created new measurement point.
Auto measurements timer determines the time interval of starting subsequent steps of the
measurement procedure.
2.2.2 Sub-menu PV modules
In Module column, use icon
to add PV module.
In Parameters column, com-
plete the module parameters.
Description of function icons
record inactive
record active
add new record
edit active record name
remove active record
return to the previous screen
return to the main menu
List of parameters
Name – name of the module
Pmax – power in MPP point*
Umpp – voltage in MPP point*
Impp – current in MPP point*
Uoc – open circuit voltage
Isc – short-circuit current
NOCT – nominal operation cells temperature
alpha – temperature current coefficient - Isc
beta – temperature voltage coefficient - Uoc
gamma – temperature power coefficient - Pmax
R
S
- serial resistance of PV module