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Gas Meter Itron ACD G1.6

Gas Meter Itron ACD G1.6 RF1 Itron is compact residential gas meter designed to accurately measure volumes of natural gas, LPG and all non-corrosive gases. Several versions and options are available to meet various application requirements. Its design minimizes installation costs and enables future fiels upgrades

Application :

Gas Meter Itron ACD G1.6 long-term metrology stability makes it the right choice for demanding, high consumption residential gas markets.


The RF1 gas meter meets strict metrological requirements such as MID, O.I.M.L and EN1359 as well as different national requirements and standards (such as PTB, DVGW and KVGN).

The RF1 is a combination of proven and reliable gas meter concepts and includes :

  • A reciprocating synthetic diaphragm
  • Crank-controlled and oscillating slides
  • Robust and tight connections between components
  • The use of precise, light weight and noise-free plastic parts

During the preliminary test controls on sonic nozzle test benches, all meters are tested at Qmin, O.2 Qmax and Qmax. In accordance with EC regulations, the maximum permissible error is +/-3% from Qmin to 0.2 Qmax, and +/- 1.5% from 0.2 Qmax to Qmax.

Operating Principle

The RF1 is a positive displacement diaphragm gas meter with a stand-alone twin chamber measuring unit.

The twin chambers are each fitted with a flexible and gas-tight diaphragm which is moved by the differential between the inlet and outlet pressure. The gas enters one side of the diaphragm plate, and comes out on the other side through a separate port on the valve. When one side is full, the sliding valve moves on to the next position, allowing the gas to fill the empty side.

A transmission gear and either a magnetic coupling or stuffing box transfer the reciprocating motion to the mechanical or electronical index.

The measuring unit is housed in a robust gas-tight casing.

The RF1 meter contains four main parts :
  1. Measuring Unit
    – Two-liter measuring unit
    – Plastics selected to facilitate meter recycling (when possible)
    – Resistance to chemicals and gas
    – High gliding properties to reduce wear on moving parts
    – Optimum long-term operation
    – A back-run stop prevents the meter from running backwards
    – An optional available backflow flap for 210-250 mm versions protects the meter against the backflow of gas
  2. Casing
    – High-quality casing material with unique corrosion resistance (aluminium/ zinc-coated sheet steel)
    – Additional coating with solvent-free paint
    – Also available in a sturdy aluminium casing for high pressure applications up to 1.5 bar (G6 size with 6″ connection distance only)
    – Molded connections ensure optimum resistance to corrosion
    – Material protected against corrosion (500h salt spray test)
    – Available with different connections
    – Integrated crimp prevents water residue
    – Crimped belt version for PN 0.1, PN 0.2, PN 0.5
    – Safe, DVGW-approved sealing material
  3. A magnetic coupling (standard) of stuffing box transmits the movement of the measuring unit to the totalizer
  4. Totalizer
    Different totalizers are available depending on the application required :
    – “e” series : electronic index for a 2-way wired/ wireless M-Bus communication, with optional electronic temperature correction and optional internal shut-off valve
    – “c” series : mechanical index equipped with a Cyble target for retrofittable AMR communication systems. The standardized interface allows you to connect various Cyble communication devices : Pulse, M-Bus, or radio frequency wireless links
  5. “o” series : mechanical index available with a permanent magnet in an index drum. Can be refitted with a low frequency wireless pulse transmitter (Reed switch)
Gas Meter Itron ACD G1.6
Technical Specification :
  • Gas type : Natural gas, air, propane butane, nitrogen and all non-corrosive gases
  • Cyclic volume : 2 dm³
  • Temperature Range :
    Gas : -25℃ to +40℃ (-10℃ to +40℃)
    Ambient : -25℃ to +55℃
    Storage : -40℃ to +70℃
  • Maximum Operating Pressure : 0.5 bar (0.1 HTL version)
  • Measuring range :
    Qmin : 0.016 m³/h
    Qmax : 2.5 m³/h
  • Casing Material : Aluminium/ Zinc-coated sheet metal
  • Accuracy : Class 1.5
  • Connections : Single or double pipe connections. Different connection threads are available (ISO 228-1 and BS746 standards, national) Special threads available upon request

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