Gas flow meters

Gas flow meters for custody transfer and process applications

Your Benefits

  • Long-term stability, reliable measurement
  • Low maintenance due to intelligent self-diagnostics
  • Virtually immune to pressure regulator noise
  • Ultrasonic transducers can be exchanged under operating pressure
  • Wide application range

The exact device specifications and performance data of the product may deviate from the information provided here, and depend on the application in which the product is being used and the relevant customer specifications.
In accordance with Article 2 (4), this product does not fall within the scope of RoHS directive 2011/65/EU and is also not designed for use in products which fall within the scope of this directive. You can find additional information in the product information.


Gas flow meters for custody transfer and process applications

The FLOWSIC600 measurement device is an ultrasonic gas flow meter and sets the standard in its market segment for custody transfer of natural gas as well as steam flow measurement. The visually technical design demonstrates that it is geared to the tough industry conditions. The compact design with integrated cable routing means that the measuring system is rugged, insensitive to interference, low-maintenance, and has long-term stability. The FLOWSIC600 features extensive diagnostics options to allow detection of malfunctions even before the measurement is affected. Versions with 2, 4, 4 + 1, or 4 + 4 measuring paths enable a variety of process applications, including custody transfer measurements.

At a glance
  • Highly efficient ultrasonic transducer - up to gas temperatures of 280 °C and pressures up to 450 bar
  • Direct path layout
  • Intelligent self-diagnostics
  • Compact, robust design
  • Integrated log book and data logger
  • Large measuring range 1:120
  • Bidirectional measurement
  • Low power consumption: <1 W


Technical overview

  • Technical data overview

    Technical data overview

    Measured valuesVolumetric flow a. c., volume a. c., gas velocity, sound velocity
    Measurement principleUltrasonic transit time difference measurement
    Number of measuring paths2, 4, 4+1, 4+4
    Hazardous area



    Class I Division 1

    Class I Division 2

    Measuring rangesMeasuring ranges depend on nominal pipe size
    Gas temperature

    –40 °C ... +105 °C

    On request: –194 °C ... +280 °C

    Operating pressure

    0 bar (g) ... 250 bar (g)

    On request: 450 bar (g)

    Nominal pipe size2 ″ ... 48 ″
    (DN 50 ... DN 1200)

    AGA-Report Nr. 9

    API 21.1

    OIML D 11:2013

    OIML R 137-1:2006

    ISO 17089-1

    BS 7965

    Enclosure ratingIP65 / IP66 / IP67
    Modbus✔ , ✔
    Type of fieldbus integrationASCII RS-485 (2x)
    RTU RS-485 (2x)
    Diagnostics functionsIntegrated device diagnostics and enhanced diagnostics via MEPAFLOW600 CBM software
All technical data can be found accompanying the individual product