Gas flow monitoring

"Unlike other methods, this measurement is not affected by the gas composition, temperature, density, viscosity or pressure, and there is no obstruction at the measurement point,” says sales director, Dominic Duggan.

When the speed of sound (SoS) in a gas is measured along a path in both directions simultaneously, the difference in the measured velocities is proportional to the gas velocity along the pipe. If gas temperature is expected to fluctuate, an automatic compensation is applied.

Measurements at 100 mbar are feasible and flow rates between 0.01 l/min and 200 l/min are possible in pipes up to 200 mm in diameter. Running from a 24 Vdc supply, the meters respond rapidly and output data in variety of formats.