AERIUS
MICROTHERMAL GAS METER
Static microthermal gas meter for accurate measuring and recording of natural gas type H and air in household or commercial applications
The electronic gas meter AERIUS utilises a CMOS semiconductor sensor, which is placed in the bypass channel. The sensor is based upon a microthermal measuring principle and contains a heating element, which is flanked by two temperature sensors. The heating elemt is used to heat the gas; a uniform temperature distribution is formed, which is deferred through a gas flow. Therefore a temperature difference is generated between 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
- Temperature converting
- Very low starting flow
- Differentiation between natural gas and air
- Interfaces wired M-Bus and wM-Bus Radio 868 or 434 MHz according to OMS®
- Noiseless
- Wear-free
- Compact design
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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 Max. accumulated volume m³ 99'999 Starting flow rate m³/h 0.009 Heat resistance HTB 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 interface for communication and testing 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
110 mm 152.4 mm -
Dimensions
Connection distance G mm Concentric 110 110 130 152.4 250 Nominal diameter DN mm 25 20 20 20 20 20 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
