Measuring load current

Precautions for measuring load current

IMPORTANT

  • Clamp the instrument around only one conductor wire. The instrument cannot measure load current when clamped around two or more wires together in a bundle, regardless of the single-phase and three-phase.

  • Put the conductor perpendicular to the sensor.

  • The instrument may not be able to measure rush current or significantly fluctuating current correctly.

  • The instrument can display a readout of other than zero without input at a low temperature; however, this does not affect any measurement.

     

  • The instrument may not be able to measure special waveforms, such as those flowing through the secondary side of an inverter.

  • Depending on the magnitude of the input current, the jaws may generate a sound due to resonance; however, this does not affect any measurement.

  • When you cannot find the magnitude of an input current, disable the filter function and start measurement using the auto range or 600.0 A range.