AERIUS
ELECTRONIC GAS METER
The electronic gas meter AERIUS detects the standard volume of natural gas using microthermal measuring principle. It can be used for domestic and industrial applications. This innovative technology allows direct measurement of real consumption (norm volume), independently of the temperature and the pressure. Equipped with communication radio OMS or wired MBus, AERIUS can be integrated very easily in AMR systems.
The electronic gas meter AERIUS uses a CMOS semiconductor sensor, which is placed in a bypass channel. The sensor is based on a microthermal measuring principle and contains a heating element, which is flanked by two temperature sensors. The heating element is used to heat the gas; a uniform temperature distribution is formed, which is deferred through the gas flow. A temperature difference is generated which is measured by the two temperature sensors. The resulting measuring signal is processed by a microprocessor into a flow rate and therefore shows into standard volume (m3).
- CMOS Sensor Technology
- MID approval (PTB)
- Pressure independent
- Conversion of temperature
- Very low starting flow
- Differentiation between natural gas and air
- M-Bus and wM-Bus interfaces, Radio 868 or 434 MHz according to OMS®
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Technical Data
Measuring principle Microthermal - pressure independent and temperature converting Application Natural gas type H (EN 437), air Measuring range m³/h 0.04 ... 6.0 Approval MID (DE-11-MI002-PTB004), DVGW (DG-4710CM0427), ATEX Standard temperature for volume output °C 0, 15 or 20 Standard pressure for volume output mbar 1013.25 Max. operating pressure Pmax mbar 500 Measuring accuracy Qt ... Qmax % ± 1.5 Measuring accuracy Qmin ... Qt % ± 3.0 Accuracy class 1.5 Battery supply 1 x 3.6 VDC (D-Cell) Battery lifetime Up to 20 years in standard use Max. accumulated volume m³ 99'999 Starting flow rate m³/h 0.009 Heat resistance 650 °C according to EN 1359 Display 1-line LCD 8-digit -
Ambient Conditions
Operating temperature °C -25 ... +55 Storage temperature °C -25 ... +70 Protection class IP 65 -
Interfaces
Optical IRDA communication interface for parameterization M-Bus Telegram according to EN 13757-3, data reading and parametrization via two wires with polarity reversal protection Radio M-Bus 868 or 434 MHz according to EN 13757 OMS®, unidirectional, transmission interval 10 seconds up 1 hour, modulation: FSK
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Product Pictures
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Dimensions
Connection distance G mm Concentric 110 110 130 152.4 250 Nominal diameter DN mm 25 25 25 25 25 25 Overall length L mm 230 230 230 230 230 327 Connection thread with screw joint Inch G2 (DIN 3376-AB25) G1¼ (DIN 3376) G7/8 (GRDF) G1¼ (DIN 3376) G1¼ (DIN 3376) G1¼ (DIN 3376) Height H mm 115 115 115 115 115 115 Width B mm 125 125 125 125 125 125 Width B1 mm Weight kg 2.0 2.0 2.0 2.0 2.0 2.4 -
Pressure Loss Graph / Typical Error Graph
