AERIUS

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
  • Technical Data
    Measuring principleMicrothermal - pressure independent and temperature converting
    ApplicationNatural gas type H (EN 437), air
    Measuring rangem³/h0.04 ... 6.0
    ApprovalMID (DE-11-MI002-PTB004), DVGW (DG-4710CM0427), ATEX
    Standard temperature for volume output°C0, 15 or 20
    Standard pressure for volume outputmbar1013.25
    Max. operating pressurePmaxmbar500
    Measuring accuracy Qt ... Qmax%± 1.5
    Measuring accuracy Qmin ... Qt%± 3.0
    Accuracy class1.5
    Battery supply1 x 3.6 VDC (D-Cell)
    Battery lifetimeUp to 20 years
    Max. accumulated volume99'999
    Starting flow ratem³/h0.009
    Heat resistanceHTB 650 °C according to EN 1359
    Display1-line LCD 8-digit
  • Ambient Conditions
    Operating temperature°C-25 ... +55
    Storage temperature°C-25 ... +70
    Protection classIP 65
  • Interfaces
    OpticalIRDA interface for communication and testing
    M-BusTelegram according to EN 13757-3, data reading and parametrization via two wires with polarity reversal protection
    Radio M-Bus868 or 434 MHz according to EN 13757 OMS®, unidirectional, transmission interval 10 seconds up 1 hour, modulation: FSK
  • Product Pictures
    110 mm152.4 mm
  • Dimensions
    Connection distanceGmmConcentric110110130152.4250
    Nominal diameterDNmm252020202020
    Overall lengthLmm230230230230230327
    Connection thread with screw jointInchG2 (DIN 3376 - AB25)G1¼ (DIN 3376)G7/8 (GRDF)G1¼ (DIN 3376)G1¼ (DIN 3376)G1¼ (DIN 3376)
    HeightHmm115115115115115115
    WidthBmm125125125125125125
    WidthB1mm
    Weightkg2.02.02.02.02.02.4
  • Pressure Loss Graph / Typical Error Graph