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.