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Custody transfer measurement in natural gas distribution

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
  • 1. Cutting-edge technology: ultrasound

  • 2. Diagnostics and permanent operational check

  • 3. Rugged and reliable due to lack of moving parts

  • 4. Exchangeable cartridge

  • 5. Straight inlet/outlet zone not required

  • 6. Overload-proof

  • 7. Optional integrated flow conversion / date registration

  • 8. Battery or intrinsically safe power supply

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.


Fields of applications

Natural gas distribution in transfer and measuring stations for municipal and regional gas suppliers

Measuring stations in industrial and commercial applications

Applications where continuous gas supply must be ensured

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

carton or wooden box