If, during the execution of an I-V or
IVCK measurement, the open-
circuit voltage (Voc) value is very
different from that defined in the
module database, the instrument
does not perform the
measurement and displays the
message shown in the screen
alongside. Check the values of the
Voc, TC(Voc) parameter within the
database and the number of
modules set in the measurement
If, during the execution of an I-V or
IVCK measurement, the value of
the measured voltage is greater
than 12%Voc, the instrument does
not carry out the measurement
and displays the message shown
in the screen alongside. Check the
circuit being measured and repeat
the test
If, during the execution of an I-V or
IVCK measurement, the
instrument is unable to determine
the @STC values, it displays the
message shown in the screen
alongside. Check that you have
stable irradiation, in addition to the
correct exceeding of the minimum
threshold and that you have
carried out the measurement in
accordance with the indications of
the M304 accessory
(see § 6.4.2 – point 10). Repeat
the measurements at other times
of the day if necessary