Emerson Process Management”s Saab Rosemount 5400 is a radar transmitter that can provide accurate level measurement regardless of signal or echoe strength, and it features technology that can ignore false echoes. The transmitter is a two-wire, noncontact system with no moving parts. Measurement is unaffected by temperature, pressure, or product density. The low-frequency model (~ 6 GHz) is designed for applications with turbulence, heavy vapors, foam, or where there is a risk for deposits on the antenna. The high-frequency transmitter (~ 26 GHz) uses a narrower radar beam for installations that have tall or narrow nozzles, where the nozzle is close to the tank wall, or to avoid disturbing objects in the tank.