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Liberty 500

Product at a glance

The Liberty 500 smart meter is a part of the smart metering system. It is a new generation, three-phase, smart electricity meter with communications capability, including DLMS / COSEM. It is equipped with a bi-directional communication unit with provision for a range of communication technologies, including RF or cellular (NB-IoT / GPRS) devices that allow it to interact with the head end system (HES) for data collection and configuration with adequate security.

It covers state-of-the-art smart functionality, coupled with revenue protection capabilities, making it the ideal solution for smart metering applications.

A built-in connect-disconnect switch and intelligent firmware platform in the Liberty 500 can deliver smart metering use cases of an energy supplier.

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Application

  • Residential metering
  • Commercial metering (large and small)

Benefits

  •  Easy integration with head-end system through bi-directional comms and interoperable protocol
  • Periodic remote data availability for utility reconciliation and monitoring
  • Improved reading efficiency and elimination of billing errors through smart functionality
  • On-demand data collection to serve critical use cases like vigilance
  • No site visits to disconnect / reconnect consumer load point
  • Enables efficient field operations to quickly restore faults by providing reliable, timely node-specific power interruption information
  • Reduced cost of ownership
  • Eliminates the cost of manual reading
  • Designed to serve long life in the field
  • Peak and off-peak management

Features

  • Reliable, bi-directional communication unit
  • Four-quadrant metering with import / export registration
  • Connect-disconnect switch with UC-3 performance
  • Connect-disconnect switch in all three phases
  • Data delivery to head end system (HES)
  • Intuitive, legible and user-friendly display
  • Provision of different communication options - Cellular (NBIoT / GPRS), RF
  • Capacitive touch keypad for ease of display navigation
  • Extensive revenue protection measures
  • Logging of tamper events and information alerts to the backend system
  • Quality of supply (QoS) monitoring
  • Supports remote firmware upgrade
  • DLMS / COSEM open protocol compliant
  • Terminal cover open, front cover open, communication module open detection

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Specifications

Electrical
Connection type 3-phase 4-wire, direct connected
Rated voltage & variation 3X230 V, ± 10%
Current range 10 A Ibasic, 100 A Imax
Accuracy Class 1.0
Frequency 50 Hz, ± 5%
Metrology LED Two LED for active and reactive energy
Switch category UC3
Compliance
Standards IEC 62052-11, IEC 62053-21, IEC 62053-24, IEC 62052-31, IEC 62056 series (DLMS / COSEM)
Mechanical
Dimensions W x H x D 184 mm X 265 mm X 97 mm ±5 mm
Weight 1.85 kg (approximately)
Display 8-digit LCD with backlight and icons for status

Software

M-Cubed 100 software suite for meter configuration and reading through optical port 

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