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True RMS measurement of voltage and current parameters are achieved by single function Ammeter (WL1110 / WL1310) and Voltmeter (WL1120 / WL1320) series. These are available in Class 1 and 0.5.

Salient features

  • Accuracy Class 1 as per IEC 62053-21 and Class 0.5 as per IEC 62053-22
  • True RMS measurement
  • Password protection site selectable
  • Auto and manual scrolling.
  • Field programmable CT, PT ratio
  • Site selectable 1A/5A
  • Phase wise and average display of voltage and current as per applicable meter
  • Inbuilt selector switch for 3 phase models
  • Site selectable for 3 Phase 4 wire, 3 Phase 3 wire, 1 phase
  • Wide operating range of 80 to 300 V AC auxiliary supply in 4110 series
  • Suitable for 50/60 Hz