Hioki FT4310, Instruction Manual, Page: 38 / 72

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Making Measurements in Voc Mode
3.6 Making Measurements in Voc
Mode
Open-circuit voltage of a string can be measured. Checking the
difference between strings allows determining short-circuit fault.
WARNING
During measurement, do not switch over to other
measurement modes.
N ( - ) P ( + )
1
2
3
4
Power
Conditioner,
Main switch
String
N(−)
P(+)
1
Set the rotary switch in Voc.
2
Connect the black test lead to N(−) of the measurement
object.
3
Connect the red test lead to P(+) of the measurement
object.
4
Check the displayed value.
[Voc] shows the measured value (open-circuit voltage value).