Overview

Two Phase Power Meter Reference Design

Specifications

Two Phase Power Meter Reference Design Block Diagram

Technical and Functional Specifications

Features

  • 200 A current range (CL200, TA 30A)
  • 85 to 264 V, 50/60Hz voltage range
  • Two types of installation: Form 2S or Form 12S
  • Accuracy class: ANSI C12.20-2002 Class 0.2
  • Line frequency measurement (for precision zero-cross detection)
  • Current transformer sensing circuit implementation for each phase
  • Low-power modes including the use of built-in RTC (Li-battery backup)
  • AMI expansion header supporting 2.4 GHz 802.15.4 or HAN/NAN (with 6loWPAN IPv6) communications for AMR and remote control
  • EMC proven design (ANSI C62.41, IEC 61000-4-4)

Peripherals

  • 8 x 20 segment LCD, including charge pump
  • LED pulse outputs (kWh, kVARh)
  • Isolated (4kV) RS-232 port for monitoring, parameterization, and firmware upgrade (optional)
  • Infrared optical port according to ANSI C12.18-2006 (optional)

Networking

  • Smart Metering Connectivity

Power & Energy

  • Two-Phase Meters

Buy

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  • MKM33Z128ACLH5   Active

  • Kinetis KM33: 50MHz Cortex-M0+ Metrology MCU, 128KB Flash, 16KB SRAM, Segment LCD, 64-LQFP
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Design Resources