48
PVΩ Measurement Function (Model IR4053 and IR4055 only)
Start Measuring
WARNING
Observe the following to avoid damage to the
measuring object.
• If the insulation has deteriorated between the
terminal P and the ground, do not measure between
the terminal N and the ground.
• Connect the red test lead to the string side of the
disconnector device.
Power conditioner, main switch
Disconnector devices
N terminal
(Black)
5
Ground
terminal
(Red)
6
P terminal
String
5
Connect the black test lead to the ground terminal.
6
Connect the red test lead to the terminal P of the string side.
If a voltage is detected between the P and the ground terminals, the
insulation may have deteriorated. When there is a voltage on the
measuring object, the voltage detection function makes the backlight
light in red and white alternately.
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