2.9 PV
Ω
Measurement
2
5
8
Grounding
terminal
PVΩ
10
Terminal N
3
1
OFF
7 ON
9 OFF
String
(Black)
6
(Red)
4
• If there is any deteriorated
insulation performance be-
tween terminal P and ground
terminal, do not make any
measurements between ter-
minal N and ground.
• Connect the red test lead to
disconnect switch at the
string side.
Disconnector
Power conditioner, main switch
Terminal P
7.
Pless and hold the MEASURE key.
To make continuous measurements, pull out the key.
Note: Do not disconnect the test leads until a resis-
tance is indicated. If any of the lead is disconnected,
no accurate measurement is available.
8.
A resistance will be indicated after approximately four
seconds (updated every one second).
Note: If there is any deteriorated insulation perfor-
mance resulting in a resistance lower than a refer-
ence, do not make any measurement for terminal N of
the procedure 10. Doing so may damage the solar
panel. Check the insulation resistance reference in
advance with safety standards.
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