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Harmonic Current Analyzer

Harmonic Current Analyzer

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This model AL CL-40 L mainly measures very small leakage current of grounding line connected with Arrester etc. The CT which is applied to this model is hardly affected by external magnetic field and therefore model AL CL-40 L can measure leakage current very accurately in high magnetic and electric field.


  • CT sensor inside diameter of CT: 40 mm
  • Measuring Function: Leakage Current, Harmonic Current (Dominant & Third Wave)
  • Measuring Method: CT Clamp-on Method
  • Measuring Range: 0-300 µA/3 ma/30 ma
  • Input Frequency: 45-60 Hz(Dominant Wave Frequency)
  • AC Conversion: RMS Detection Method
  • A/D Conversion: Double Integration Method
  • Display: 3200 count max.
  • Sampling Rate: 2 times/second
  • Over Indication: "OL" on the display
  • Low Battery Indication: "B" sign on the display
  • Data Hold Function: "DH" sign on the display
  • Auto Power Off: Approx 10 minutes after power on
  • Other Function: Motor Drive Switch for CT open/close
  • Power Supply: AA size Alkaline battery x 4
  • Operating Circuit Voltage : Less than 500 V AC