Siemens Industry Automation Division has launched Sitrans LR560, its first radar level transmitter operating at 78 GHz frequency.
Sitrans LR560 is a non-contacting 2-wire FMCW (frequency modulated continuous wave) radar level measurement transmitter with a measurement range of 100 metres. The transmitter emits a narrow four degree beam which avoids silo wall obstructions and other installation interferences, allowing it to be installed practically anywhere on the top of the silo. As the first radar transmitter to operate at 78 GHz frequency, it emits a short wavelength to provide exceptional signal reflection even from solids with a steep angle of repose. The graphical quick start wizard guides the user to get the transmitter operational in minutes for accurate and reliable level measurement readings without any additional fine-tuning.
Sitrans LR560 is available with HART, Profibus PA, or Foundation Fieldbus protocol. Programming is supported locally with pushbuttons or with an infrared handheld programmer. The transmitter also supports remote configuration and diagnostics with Siemens Simatic PDM (process device manager), Emerson AMS, or PACTware using Siemens DTM. The local display interface features a backlit display and can be rotated to four positions for convenience. The unique lens antenna is highly resistant to material build-up and an integrated purge connection is included for cleaning exceptionally sticky solids material. The high frequency operation makes aiming unnecessary, but the optional aiming flange helps direct the beam to an area of specific interest, such as the discharge area of the silo cone.
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