HT PV-ISOTEST User Manual page 29

14. In case a fault is present (Rp<Lim) in position NMOD
(between the second last and the last module), the
instrument shows the screen to the side and the message
"GND:Fault NMOD-1..NMOD" on the display.
state of insulation of the junction boxes of the modules
indicated and related connection cables
15. In case a fault is present (Rp<Lim) within the string,
the instrument shows the screen to the side and the
message (relevant to the example with NMOD = 14)
"GND: Fault 8..9" on the display.
insulation of the junction boxes of the modules indicated
and related connection cables
The results of function GFL cannot be saved in the instrument's memory.
Check the
Check the state of
CAUTION
EN - 28
PV-ISOTEST
GFL 15/10 – 18:04
R p 0 . 0
V P N V P E
1 4 8 0 V - 7 5 0 V
GND: Fault 13..14
14 1500V 0.10M
NMOD Vtest. Lim.
GFL 15/10 – 18:04
R p 0 . 0
V P N V P E
1 4 8 0 V - 7 5 0 V
GND: Fault: 8..9
14 1500V 0.10M
NMOD Vtest. Lim.
M 
V N E
7 4 8 V
M 
V N E
7 4 8 V