MI 3108 EurotestPV
Solar measurements
– PV systems
80
Connection for Uoc / Isc test
Figure 6.22: Uoc / Isc test
Uoc / Isc test procedure
Select
Uoc / Isc
sub-function using the function selector keys and
/
keys.
Connect
PV safety probe and sensors (optional) to the instrument.
Connect
the item to be tested (see figure 6.22).
Check input voltage.
Press the
TEST
key to perform the measurement.
Store
the result by pressing the
MEM
key (optional).
Figure 6.23: Example of Uoc / Isc measurement results
Displayed results for PV panel test:
MEAS column
Uoc .......... measured open voltage of the panel
Isc............ measured short circuit current of the panel
STC column
Uoc .......... calculated open voltage at STC
Isc............ calculated short circuit current at STC
Notes
:
Before starting the PV measurements settings of PV module type and PV test
parameters should be checked.
For calculation of STC results correct PV module type, PV test parameters, Irr and
Tcell values must be measured or be entered manually before the test. The Irr and
T results in ENV. menu are considered. Refer to Appendix E for further information.
The Irr and T measurements should be carried out immediately before the Uoc /
Isc test. Environmental conditions must be stable during the tests.
For best results PV remote unit A 1378 should be used.
