Rockwell Automation 1734sc-IE4CH E+H Instruments via HART to PlantPAx User Manual - Manual (Page 109)

Rockwell Automation Publication PROCES-UM002A-EN-P - July 2014 109
Appendix
F
Levelflex M Guided Radar Level
Levelflex instruments are "downward-looking" measuring systems that function
according to the ToF method (ToF = Time of Flight). The distance from the
reference point (process connection of the measuring device) to the product
surface is measured. High-frequency pulses are injected to a probe and led along
the probe. The pulses are reflected by the product surface, received by the
electronic evaluation unit and converted into level information. This method is
also known as TDR (Time Domain Reflectometry).
Topic Page
Connect a Levelflex M Guided Level-Radar 111
Configure a Levelflex M Guided Level-Radar 113
Component Catalog Number Details
Levelflex M guided level-radar FMP40-APR2CNJB21CA Firmware revision 1.04