OVERVIEW
Liberty smart gas meters combine accurate measurement, secure communication and dependable operation in compact solutions designed for modern residential metering and connected-home energy management.
Accurate Measurement
Secure Communication
Compact Design
Accurate Measurement
Secure Communication
Compact Design
TYPICAL APPLICATIONS
Residential Gas Metering
Smart Metering
Credit and Prepayment
Meter Replacement
Connected Homes
Product Details
The Liberty gas-meter range is designed for accurate residential gas measurement, dependable operation and integration into modern smart-metering environments. Compact electronic measurement technology supports flexible installation while providing consumers and energy suppliers with clear, reliable consumption information.
Smart Metering Functions
Depending on the selected meter and project configuration, the range can support credit and Pay As You Go operation, consumption and billing records, event logging, tariff management and remote firmware updates. A clear display and local keypad provide convenient access to meter information and can support local token entry when remote communication is unavailable.
Integrated valve functionality and smart communication capabilities help utilities manage meter operation while supporting straightforward installation, registration and system pairing. Historical consumption information can also help consumers better understand and manage their gas usage.
Technical Specifications
Measurement
ModelsLiberty Gas 120 (G1.6) and Liberty Gas 220 (G4)
Flow rateG1.6: Qmax 2.5 m³/h; G4: Qmax 6 m³/h
Measurement principleThermal mass flow, fully electronic
Gas types2nd family (H, L, E) with up to 20% hydrogen and 10% biomethane
Working pressureUp to 0.5 bar
Communication
Remote communicationNB-IoT (3GPP Rel. 13/14)
Local communicationBluetooth Low Energy (mobile app)
Data & Software
Operating modesPrepayment (PAYG), accounting and credit
ValveIntegrated shut-off ball valve
Mechanical & Environmental
Battery lifeUp to 10 years (field-replaceable)
Ingress protectionIP67
Compliance
StandardsMID EN 17526 (Class 1.5), OIML R 137, ATEX II 3G, CE, RED
Downloads
Liberty Gas 120 / 220 DatasheetDatasheet · PDF · EN · 319 KB