5-19
IM 253710-01E
Setting the Measurement Mode and Range
5
Configuration example of the current sensor range and transformation ratio
For example, when using a current sensor that outputs 10 mV when 1 A of current is
flowing, to measure a current with a maximum value of 100 Apk, the equation
becomes 10 mV/A
×
100 Apk = 1000 mVpk. Therefore, set
1000 mVpk for the current sensor range, and
10 mV/A for the current sensor transformation ratio.
Note
When attempting to directly read the current of the circuit under measurement by multiplying
the output of the external current sensor by the transformation ratio, turn OFF the external
PT/CT scaling function (see section 5.5). If it is turned ON, the value will be multiplied by the
CT ratio.
5.4 Setting the Measurement Range when Using an External Current Sensor