The operation of the International Gas Turbine Meter is based on the measurement of the velocity of gas. The flowing gas is accelerated and conditioned by the meters straightening section. The straightening vanes prepare the gas flow profile by removing. undesired swirl, turbulence and asymmetry before the gas flows to the turbine wheel. The dynamic forces of the flowing fluid cause the rotor to rotate.

The turbine wheel is mounted on the main shaft, with special high precision, low friction ball bearings. The turbine wheel has helical blades that have a known angle relative to the gas flow. The conditioned and accelerated gas drives the turbine wheel with an angular velocity that is proportional with the gas velocity.

• 180 degrees rotatable head, and easy installation and maintenance
• Good repeatability: 0.05%~0.2% for short period
• Temperature and pressure compensation available

For unclean media we advise to use a filter.

For measuring the flow rate and flow velocity in pipes and ducts, flow profiles, aerodynamic research, laminar flow, also at high gas temperatures, landfill gas, exhaust gas, flow rate and flow velocity in flowing waters. Based on a vane wheel rotating at a speed proportional to the flow velocity of the fluid

• for application in air/gases and water/liquids
• probe diameter from 15 mm, measuring tube from 9.7 mm
• Combi probes for flow and temperature
• working temperatures up to +550 ºC
• corrosion resistant to aggressive gases - low pressure drop
• ± directional sensing of flow
• Profibus
• for applications in Ex areas

Flow rate and flow velocity measurement in wet and/or particulate-laden gases, biogas or exhaust gas, also according to Clean Air Guidelines, (TA Luft). Flow rate measurement of sludge aeration air, sewage gas, landfill gas, water vapour and engine intake air on test stations, superheated steam. Flow velocity in climatic wind tunnels, diluted car exhaust gas, traffic tunnels and in nuclear reactor technology.

• for application in condensate and particle laden aggressive gases 
• probe for pipeline installation from Di 80 mm, measuring tube from Di 25 mm
• combi probes for flow and temperature
• sensor with no moving parts
• German TA Luft 13&17, SIL, Ex Certificates
• time constant 65 ms
• low pressure drop

Fixed and portable consumption measurement in compressed air, nitrogen, natural gas, methane, helium, argon, carbon dioxide, hydrogen, SF6; measuring laminar flow, burner supply air, leakage flows; monitoring safety-related installations, also in aeronautical applications.

• for use in air, compressed air, nitrogen, natural gas, methane, deposit gas, argon, helium, propane, butane, CO2, SF6
• probe for pipeline installation from Di 25 mm, measuring tube from Di 8 mm measurement of gas mass flow
• standard flow velocity 0.08 m/s to 200 m/s, volume flow up to 0.04 m3/h
• time constant of under 1 s
• for applications in Ex areas
• M-Bus, WLAN