HT instruments PVCHECK - Manual (Page 33)

PVCHECK
EN - 31
CAPTION:
E: Green
cable
C: Blue cable
P: Red cable
N: Black cable
1. PV module/string
2. Main system earthing
3. Earthed metal structure in
the system
Fig. 6: Connection for IVCK test without irradiance measurement
CAUTION
Upon pressing the GO/STOP key, different error messages can be displayed
by the instrument (see § 6.6) and, therefore, the test cannot be started. Check
and eliminate, if possible, the problem causing the error message before going
on with the test.
9. Press GO/STOP to start the test. In case no error
conditions occur, the instrument displays the message
“Measuring…” and the measure of open-circuit voltage
between the terminals P and N and of short-circuit current
(for Isc values
10A).
15/05/12 15:34:26
M o d u l e : S U N P W R 3 1 8
V d c : 5 4 8 . 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 ) - - - 
Measuring…
Selection I V C K
10. When Voc and Isc measurements are complete, the
message “OK” is shown in case the result of the test is
positive (measured values within the tolerances set on the
instrument)
11. With insulation measurement selected, the instrument
goes on with the test keeping terminals P and N short-
circuited, and carrying out the test between this point and
terminal E for the time necessary to obtain a steady value.
12. The value of insulation resistance is shown in field “Ri” and
the message “OK” appears in case the result of the test is
positive (measured value higher than the minimum limit
value set on the instrument).
15/05/12 15:34:26
M o d u l e : S U N P W R 3 1 8
V d c : 5 4 8 . 0 V
I r r : 0 W / m 2
T c : A u t o ° C
V o c , I s c : O K
R i ( 1 0 0 0 V ) 1 1 6 M  O K
R p e ( C a l ) - - - 
Measuring…
Selection I V C K