FAQ

Question

For AC Current Measurement

1.	A large-sized Model 234302 with the measuring range of max 300A has been used, but a smaller RMS type is preferable.

For AC/DC Current Measurement

1.	Model CL220 has been used for AC current measurement, but it is not preferable enough due to much errors. Would you recommend anything suitable ?

Answer

For AC Current Measurement

1. A large-sized Model 234302 with the measuring range of max 300A has been used, but a smaller RMS type is preferable.

Model CL135, true RMS display, 200/600A measuring range and Φ30 measurable conductor diameter meets your requirements.

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For AC/DC Current Measurement

1. Model CL220 has been used for AC current measurement, but it is not preferable enough due to much errors. Would you recommend anything suitable ?

Detection method for CL220 is RMS value calibration.Correct display within the nominal accuracy limit could be obtained if the object to be measured is sine wave. In the meantime, the object to be measured is not sine wave or distored waveform, the display will be different from the RMS value. This is the reason as if the error seems bigger. For such distorted waveform current measurements, we would recommend to use RMS value types such as Model CL235.

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