ATMOS DIAPHRAGM GAS METER G1.6S, G2.5S, G4S, G6S solid build quality, high accuracy.

ATMOS DIAPHRAGM GAS TER G1.6S, G2.5S, G4S, G6S advanced technical detail makes ZENNER’s diaphragm gas meter a high-quality measuring instrument.

The diaphragm gas meter is available in sizes G1.6, G2.5, G4 and G6. The meter is characterised by accurate measurements, constant stability of measurements, long life and high reliability. Due to the use of high quality materials, the diaphragm gas meter is corrosion resistant.

The gas meter is suitable for different gas materials. The integrated calibration system coordinates the movement of valves relative to the optimum gas flow. The excellent linearity of the error curve is guaranteed even at low flow rates. Due to the optimum slip properties of the valves, the Qmin value remains stable and the gas meter is resistant to contamination. The high measurement range provides accurate measurement of the flow rate from 0,016 m ³/h to 6 m ³/h.

The Atmos ® diaphragm gas meter shall comply with THE requirements OF THE EN1359:1998/A1:2006 and OIML R137-1 (2012) standards.


The gas meter shall be suitable for use with different gas means:

  • Natural gas
  • Urban gas
  • Biogas
  • Liquid gas
  • Methane gas



  • Confirmed according to MID with NMI
  • Integrated system for adjusting error curve
  • Galvanized steel body with powder coating for maximum corrosion resistance
  • Refractory (HTB) up to 0,1 bar according to EN1359
  • Start flow [LT] 1 dm ³/h
  • Operating temperature range: -25 °C to +55 °C
  • Working pressure: 0.5 bar
  • Long-term stability due to the use of high quality diaphragms
  • Can be equipped with pulse
  • Optional: reverse flow lock