Atmos G1.6S / G2.5S / G4S
ZENNER Atmos diaphragm gas meters are MID-approved meters for measuring natural gas consumption in homes and small commercial buildings. A reed pulse output connects them to existing M-Bus infrastructure through an adapter, and an optional Wireless M-Bus module adds wireless reading. In Argus EMS, entering the external gas invoice enables budget-versus-actual comparison.
| Model / Capacity | G1.6S: 0,016–2,5 m³/h · G2.5S: 0,025–4 m³/h · G4S: 0,040–6 m³/h |
| Operating Pressure | Max. 0,5 bar |
| Operating Temperature | −25 °C – +55 °C |
| Accuracy Class | 1,5 (EN 1359 / OIML R137-1) |
| Pulse Output | Reed switch (used with an M-Bus adapter) |
| Protocol | Reed pulse → M-Bus adapter or Wireless M-Bus module |
| Connection | Via an M-Bus TCP gateway (Argus EMS compatible) |
| Certification | MID 2014/32/EU, EN 1359:2017, OIML R137-1 |
| Service Life | ≥ 20 years |
| Gas Type | Natural gas · LPG · Air |
| Standards | EN 1359, MID 2014/32/EU Annex MI-002 |
Integration with Argus EMS
The Atmos G1.6S / G2.5S / G4S connects to Argus EMS over M-Bus (EN 13757) two-wire meter loop, and because a ready register template ships with the platform you do not have to work out a point map on site. The field agent polls the device every 60 seconds by default, writes the reading into a local queue first and then forwards it to the server over MQTT/TLS; nothing is deleted before the server acknowledges it. Hourly and daily summaries are derived from these raw readings, and the consumption and cost screens are fed from the same series.
| Protocol | M-Bus (EN 13757) two-wire meter loop |
| Connection path | The M-Bus loop is read through an M-Bus TCP gateway |
| Default polling period | 60 seconds (field agent) |
| Points in the ready template | 6 registers |
| Consumption calculation | Difference of the m³ index over the period; the kWh equivalent is derived from the calorific value |
| Data assurance | Local queue plus server acknowledgement; nothing is deleted before it is confirmed |
When Is This Model the Right Choice?
It meters natural gas consumption in m³, and the kWh equivalent is derived from the calorific value. It is used to separate the consumption of distinct gas lines such as boiler rooms, kitchens and generators.
The M-Bus loop is two-wire and meters connect in parallel on the same pair, so no dedicated cable is pulled per meter. Loop length, conductor cross-section and the number of meters on the loop are assessed together, because an M-Bus gateway can only drive a limited load. Meter addresses (primary/secondary) are verified one by one during commissioning.