Guided wave radar level transmitters for safety applications
K-Tek's guided wave radar level transmitters are certified for IEC 61508 SIL2 and SIL 3 applications.
K-Tek, a manufacturer of instrumentation for level measurement and member of the ABB Group, has announced that its MT5000 Series of guided wave radar transmitters has been certified for use in SIL2/3 (Safety Integrity Levels 2 and 3) applications. To obtain SIL certification, the products must be analyzed based on quantitative data and tests indicating the length of time between failures and expected performance in the field. This certification emphasizes quantitative measures for reducing risk at the process measurement level when implementing safety instrumented systems (SIS) in process plant environments.
"When it has to be safe and reliable, you want a device that has been thoroughly inspected and certified by a third party," said Charles Richard, global product manager for radar products at K-Tek. "K-Tek is the only guided wave radar transmitter manufacturer to provide a certified SIL2/3 product offering. The MT5000 Series provides reliable measurements even in the most complex situations. This makes it ideal for a variety of level applications, such as light hydrocarbons, low dielectric fluids, or fluids with foamy surfaces. Additionally, the MT5000 is self-monitoring, continually looking for any faults that could cause device failures or false indications."
The MT5000 devices feature an integrated graphic display for quick and easy viewing of waveform screens. A concentric waveguide directs the radar beam, alleviating divergence problems and echoes from tank walls and surrounding structures. In addition, the devices are unaffected by variations in specific gravity, and accurate level measurements are provided even with widely varying temperatures and pressures: up to 5,000 psi (344 bar) or 800 °F (427 °C). The two-wire, loop powered design reduces wiring costs and provides a strong signal over distances.
Visit the Control Engineering Process Control Channel.
Edited by Peter Welander, pwelander(at)cfemedia.com