Smart metering system

Liberty 100 family

Liberty 100 is a single-phase smart electricity meter to meet the growing smart metering requirements. It has a modular architecture for both WAN and HAN. This enables multiple communications options to be deployed. The modules can be replaced in the field, which means that investment in the meter is protected even if the communication technology needs to be changed during the meter life. There is a pre-installed communication module. This acts as a hub for communication between the head end system and to the gas meter/in home display. Both the meter and communications hub are capable of remote firmware upgrade after installation. This allows or the changing of both features and functionality. Liberty 100 supports both credit and Pay As You Go (PAYG) modes of operation.

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  • Meets requirements of SMETS1 and SSWG
  • Four-quadrant measurement with import/export registration
  • Time of use/complex tariffs and maximum demand
  • Logging of multi parameter load survey, billing data, and events including power outage and abnormalities
  • Integrated contactor
  • Multiple WAN communication options – GPRS, long range radio
  • Liberty 100 communication hub acts as a coordinator for Zigbee HAN and as a mirror for gas meter data
  • Credit and PAYG modes (meter maintains account and tariffs) Keypad to enable local entry of Pay as You Go token if WAN not available Remote firmware upgrade (not metrology)
  • Domestic and small commercial premises
  • Embedded networks and co-located installations (optional) Credit and PAYG applications
  • Advanced metering infrastructure (AMI)
  • Suitable for co-generation metering applications
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