Energy Meters

On-Site Reference Energy Meters for Field Verification

Energy Meters

Green Watt supplies on-site reference energy meters for the verification and calibration of revenue-grade and industrial energy meters in the field. These portable reference standards allow metering engineers and utility inspection teams to test installed meters without removing them from service.

Key Features

  • Class 0.05 accuracy or better across the full range
  • 1-phase (GW-EMR1) and 3-phase (GW-EMR3) models available
  • Direct connection or clamp-on current input options
  • Real-time display of power, energy, power factor, and frequency
  • Simultaneous display of all three phases (EMR3)
  • RS-232 / USB communication for automated test reporting
  • Rugged housing for substation and outdoor environments
  • Complies with IS 16444 / IEC 62053 accuracy requirements

Applications

  • Revenue meter verification and audit by utility inspection teams
  • Post-installation commissioning check of LT and HT energy meters
  • Periodic statutory verification per CEA (Meters) Regulations
  • Energy audit and loss-reduction programmes by DISCOMs

Technical Specifications

Accuracy ClassClass 0.05 or better
ModelsGW-EMR1 (1-phase), GW-EMR3 (3-phase)
CommunicationRS-232, USB
StandardsIS 16444, IEC 62053

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Category

Metering & Power Quality

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