HT instruments PVCHECK - Manual (Page 39)

PVCHECK
EN - 37
o OK: if all results under STC are OK,
o NO if one of the results under STC is NO
23. Press the
 key to go back to the previous screen.
24. Press the SAVE key to store the test result in the instrument’s memory (see § 7.2) or
the ESC/MENU key to exit the screen without saving and go back to the main
measuring screen.
CAUTION
The average values of Voc and Isc are displayed in the results’ page. These
values include the average values of Voc and Isc under OPC conditions
calculated as mean of the last 10 tests previously saved. If the user has carried
out and saved a number of tests <10 or reset the average values (see § 6.3.4)
the average value displayed during test N+1 will be calculated on the available
N values.
6.3.4. Reset
Averages
If irradiance values are measured, the instrument provides a result by comparing the
values measured with the average values calculated according to the previously saved
measured.
In this case, the average values calculated by the instrument are therefore particularly
important. In case a new measurement campaign is started with significant variations in
irradiance or temperature, it is advisable to set the average reference values to zero in
order to make new calculations based on new measurements.
To reset the average values, please keep to the following steps:
1. In IVCK mode, press the ENTER key, select “Reset
Averages” and confirm by pressing ENTER again to zero
the average values calculated until that moment.
15/05/12 15:34:26
M o d u l e : S U N P W R 3 1 8
V d c : 0 . 0 V
I r r : 0 W / m 2
T c : A u t o ° C
V o c , I s c :
R i ( 1 0 0 0 V ) - - - M 
R p e ( C a l ) - - - 
Leads calibration
Reset Averages
Settings
Selection I V C K
The average values are automatically reset also modifying and then saving one of the
following parameters:
 Type of PV module
 Number of modules per string
The average values are not reset if the operator changes operating mode and then goes
back to this mode.