Gas flow meters

Custody transfer measurement in natural gas distribution

Your Benefits

  • Ultimate measurement certainty and safety of continuous gas supply
  • Reduction of installation costs due to integrated flow conversion
  • Simple installation, compatible with conventional technologies (turbine and rotary displacement meters)
  • Minimal operating costs due to being nearly maintenance-free
  • Simplified recalibration due to straightforward cartridge exchange
  • Reliable under dynamic load changes
  • Self-sufficient operation

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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.

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Gas flow meters
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    Custody transfer measurement in natural gas distribution

    The latest technology for the ultimate in measurement accuracy: The FLOWSIC500 ultrasonic compact gas meter from SICK enables extremely accurate natural gas distribution measurement. Thanks to its lack of mechanical moving parts, the FLOWSIC500 is rugged, reliable, and maintenance-free – allowing for a significant reduction in operating costs. It is overload-proof, accurate and is monitored by an intelligent diagnostics system. Recalibration is extremely straightforward, as it is simply a matter of exchanging the cartridge. The FLOWSIC500 can easily be integrated into existing measuring stations. It operates either in a self-sufficient energy configuration or in failsafe network operation with battery back-up. It complies with all pertinent standards and directives. When used in transfer stations and measuring stations, the FLOWSIC500 provides the security of a continuous and blockage-free gas supply.

    At a glance
    • Cutting-edge technology: ultrasound
    • Diagnostics and permanent operational check
    • Rugged and reliable due to lack of moving parts
    • Exchangeable cartridge
    • Straight inlet/outlet zone not required
    • Overload-proof
    • Optional integrated flow conversion / date registration
    • Battery or intrinsically safe power supply


    Gas flow meter and volume correction in one

    Why use two devices for one task? Gas flow meters and with volume correctors are used for the same thing: Precise measurement of the transported gas volume. It makes sense to combine both into one device, saving on installation costs and reducing the number of interfaces.

    When leaving the factory, the FLOWSIC500 gas flow meter already has everything you need. This makes installation easy and keeps installation costs low. The volume corrector can be integrated into the FLOWSIC500 on request. The volume corrector supports all typical correction algorithms, such as SGERG88, AGA 8, and AGA NX-19. There is the option of TZ or pTZ correction. The pTZ variant approved in accordance with MID. The right temperature and pressure sensors always come with the meter.

    FLOWSIC500 variants

    Simple installation into pipelines

    Connection to all standard volume correctors via LF, HF, encoder, or RS-485 output

    Minimum installation costs

    The meter is preconfigured in line with the p/T sensor technology supplied with it

    Easy access to the p/T sensors for operating point tests

    Option of using the p/T tappings on the meter for connecting the sensors

    Maximum convenience during installation

    Integrated sensor technology for p/T fully pre-configured

    Just install, connect the signal output, and you’re done

    Easy, convenient, reliable.

    FLOWSIC500 fulfills the requirement of all standards and regulations relevant for natural gas distribution and is certified in accordance with MID guideline 2014/32/EU.

    Everything in one: Gas flow meter, flow computers and pressure and temperature sensors.
    Never lose anything, thanks to comprehensive data archive and log books.

    A gas flow meter and volume corrector in one – simple, convenient, reliable. more than one option.

    Voltage supply: no problem

    Thanks to PowerIn Technology™, the FLOWSIC500 performs fail-safe measurements in intrinsically safe line powered operation with battery back-up. Alternatively, the gas flow meter operates by battery as an energy self-sufficient configuration for a period of at least five years.

    Compact and intuitive

    FLOWSIC500 operates without straight inlet or outlet zone requirements.
    Pure comfort: USB/Infrared adapter for easy connection.
    Intuitive user program – the FLOWgate™ software platform.

    Easy installation, compatible with conventional technologies, and minimal operating costs – The perfect solution for municipal gas suppliers and industrial consumers


    Technical overview

    • Technical data overview

      Technical data overview

      Measured valuesVolume a. c., volumetric flow a. c., gas velocity, volume s. c. (*), volume flow under s.c. (*)
      Measurement principleUltrasonic transit time difference measurement
      Hazardous area


      Class I Division 1

      Gas temperature

      –25 °C ... +60 °C

      Optional: –40 °C ... +70 °C

      Operating pressure

      PN16 (EN 1092-1): 0 bar (g) ... 16 bar (g)

      Class 150 (ASME B16.5): 0 bar (g) ... 20 bar (g)


      MID: 2014/32/EU

      OIML R 137-1&2:2012

      EN 12405: 2010 (for integrated flow conversion)

      Enclosure ratingIP66
      Type of fieldbus integrationRTU RS-485
      Optical interface
      Corrective functionsVolume correction
      Diagnostics functionsPermanent monitoring of measured values
    All technical data can be found accompanying the individual product